US20080156805A1

Movatterモバイル変換

Info

Publication number: US20080156805A1
Application number: US11/964,491
Authority: US
Inventors: James P. Perry; Craig A. McCardell; Jeremy McBroom; David Compeau
Original assignee: Abbott Laboratories
Current assignee: Abbott Laboratories
Priority date: 2006-12-27
Filing date: 2007-12-26
Publication date: 2008-07-03

Abstract

A container (210) for holding granular or powdered material and formed by a top wall (212), a bottom wall (214), a front wall (216), a rear wall (218), a first side wall (220), and a second side wall (222). A rotatably removable lid (D) is interiorly mounted with a scoop (32) and is pivotally hinged to a collar (300) that includes a sealing gasket (330). The collar (300) mounts to the walls of the container (210). A sealing wall240 of the lid (D) cooperates with the gasket330 to prevent the contents from spilling. The container (210) incorporates powder control features, a container wall junction (50) preferred geometry and congruent scoop (32) enabling convenient access to the contents, a tolerance variation accommodating and strength improving, J-shaped collar (300) and interlocking indentations (290) and flex clips (310), and a pressure controlling portion (350) that prevents unwanted deformation due to pressure differentials.

Description

PRIORITY CLAIM TO RELATED APPLICATION

This application claims the benefit of the earlier filing date of commonly owned and co-pending U.S. patent application Ser. No. 11/645,887 filed Dec. 27, 2006, and No. 61/014,595 filed Dec. 18, 2007, both of which are hereby incorporated by reference in their entirety as though fully set forth in the present application.

RELATED APPLICATIONS

This application is also related to three other commonly owned and co-pending applications filed on Dec. 26, 2007, concurrently with this application, each incorporated by reference. The titles and inventors are:

- CONTAINER WITH SEALING WALL, invented by James P. Perry, David Compeau, Craig A. McCardell, and Jeremy McBroom and given Ser. No. ______.
- CONTAINER AND CONGRUENT SCOOP ASSEMBLY, invented by James R Perry, Peter B. Clarke, J. Kevin Clay, Marc A. Pedmo, Richard C. Darr, Katherine Jordan, William J. Hook, Ashley A. Gohike, and Jack E. Elder and given Ser. No. ______.
- CONTAINER AND COLLAR WITH ATTACHING MEANS, invented by James P. Perry, Charles R. Schotthoefer, David Compeau, Craig A. McCardell, Jeremy McBroom, Frank S. Walczak and Jack E. Elder and given Ser. No. ______.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to the field of packaging, and more particularly, packaging containers for granulated products, such as for example, a powder.

2. Description of Related Art

Currently, products in granular or powdered form, such as, for purposes of example without limitation, infant formula, flour, coffee, sugar, are packaged in containers. Scoops are provided within the package for measured dispensing of such contents. Consumers or users of such containers have found that the current packaging is difficult to handle with a single hand, and have found that it is difficult to open the container and to locate and remove the scoop from the packaging upon the first use without experiencing spillage. Once the lid of the container is removed and/or opened, the contents are often loosely caked or packed into parts of the interior of the lid or top of the container, which leads to spillage as the contents fall away from the lid or top. While some of the falling powder may fall back into the interior of the container, much of it is wasted and contaminated as it spills onto the surrounding workspace. Additionally, prior containers do not offer adequate sealing of the contents after the container has been opened for the first time. This leads to the undesirable and inadvertent leaking or escape of the contents from various poorly sealed areas of the container.

When the user wishes to withdraw a portion of the product from the container, she must first dig around in the interior of the container with her fingers to find the scoop. This search and locate process contaminates the contents and soils the hands of the user, which can lead to more unwanted spillage as the powder-coated fingers and hands are removed from the interior of the container. Once located, the scoop is withdrawn so that it can be used, and the scoop is also coated with the contents. The bowl of the scoop is also caked or packed with the contents. As the coating of powder and the packed bowl of powder loosen during the removal process, more contents are contaminated and wasted as the coating falls away from the hands, fingers, and scoop, and as any powder caked in the bowl loosens and falls.

Additional problems have been experienced with scoops that are positioned in a more convenient location, perhaps against an interior or exterior wall. These additional problems include difficulty in grasping the scoop, which may be tightly fastened with adhesive against the wall and/or with a mechanical retainer or fastener that leaves very little clearance between the scoop and surrounding structure of the container for grasping the scoop. These undesirable configurations typically will require more than one free hand for removal and grasping of the scoop.

Once the scoop is located and gripped by the user, it can be used to withdraw and dispense the desired amount of product. Typically, the scoop is then placed back into the container and the lid is replaced to close the container. The next time the product is to be withdrawn from the container, the process of searching for the buried and powder-coated scoop is repeated. U.S. Pat. No. 5,706,974, incorporated herein, discusses the problem of storage of the scoop outside of the granular or powdered product.

Users have also found that it is difficult to remove the last bit of powder from the nearly empty container because the shape of the container includes tight and closed spaces that are inaccessible to the scoop, and which has other areas having a shape that is different than the shape of the scoop. As a result, a user must resort to inverting the container to completely empty the contents, which creates another instance of spillage and wasted contents.

Manufacturers of such containers have also experienced a number of challenges in fabricating the containers when using various types of optionally preferred thermo-forming and polymeric manufacturing processes and materials. In many prior art attempts to manufacture such containers, various thermo-molding processes are used. Those skilled in the relevant arts have long known about the difficulty in producing various types of packaging containers using thermo-formed polymeric materials.

Such materials are subject to many variables that adversely and unexpectedly result in product components being produced that can vary beyond acceptable dimensional tolerance limits, which results in the need to scrap defective containers and components of such container, and the need to produce replacements. Also, polymeric materials can render mis-shaped component profiles due to unexpected shrinkage and warping, and other thermo-forming anomalies that leave entire production runs of containers and components for containers destined for the scrap heap.

These types of manufacturing problems are especially pronounced in containers formed from assemblies that incorporate more than one component, such as where a top or lid and a collar assembly are fastened to a bottom part of the container. Problems in assembling such components can result if one or both of the components are out of tolerance or otherwise mis-shaped. Even where it is sometimes possible to assemble improperly dimensioned or mis-shaped components, most polymeric container configurations have long been in need of improved strength and rigidity characteristics to overcome such anomalies and to render such containers more durable for use in a wider array of environments.

Still other users experience problems with prior art containers that are inadequate for use in circumstances where the ambient air pressure external to the container changes drastically so as to create a significant pressure differential between the sealed interior space of the container and the external, ambient atmosphere. This situation is most apparent in situations where a manufacturer produces containers that are filled and sealed at a factory located at an altitude at or near sea level.

When such sea-level pressure containers are shipped to consumers located at higher altitudes or elevations, the container packaging will have a higher internal pressure, which creates a pressure differential that can be significant. If the pressure differential is large enough, the container may become distended making it difficult to stack and store, and may even experience a breach, leading to contaminated and wasted product. The opposite situation can occur when containers that are filled and sealed at a higher altitude are shipped to lower altitude users. Upon opening, ambient air can rush into the interior space of the container and contaminate the contents.

When a container having a pressure differential is opened, the contents may again spill due to the very rapid pressure equalization ejecting a cloud of powdered or other type of product contents. Attempts to overcome these disadvantages have included thicker walled containers, which increases weight and material costs, as well as round and cylindrical containers that may have higher hoop stress strength, but which are less efficient and convenient to stack and store on a shelf.

What has long been needed in the field of art is a container that addresses the many issues surrounding prior art containers, and which most importantly offers new and innovative ways to prevent and/or minimize contamination, spillage, and waste of product contained in such containers. A container has been sought that better enables access to the last bit of powder in a nearly empty container without the need to invert the container. It is also advantageous to create a container that enables more convenient access to a scoop for dispensing the powder. A container package that can be easily manipulated by one hand while leaving the other hand free for opening and dispensing is particularly needed for a variety of applications. A container that is easy to handle, grip, and to transport in quantity and to stack and store on a shelf has also been needed for a long time.

Many attempts have still fallen far short of creating a more durable container that incorporates improved rigidity and strength characteristics that can expand the range of acceptable dimensional tolerances and that can adapt to and more readily accommodate unexpected mis-shaped container component profiles. The field of art continues to have a need for a container that can better withstand pressure differentials without compromise of the container, and which can minimize the inconvenience of spillage and wasted product due to a rapidly expelled cloud of product if the container is opened while subjected to a pressure differential.

SUMMARY OF THE INVENTION

Many of the problems of the prior art are addressed with the innovative sealable containers of the invention, which enable previously unavailable features including improved sealing capabilities, new ways to control spillage of powdered contents, new integrated dispensing scoops, and strengthened containers that can protect against spillage and damage to product due to adverse pressure differentials between the sealed product container and the external environment. In one preferred configuration of the invention, a sealable container includes walls defining interior and exterior surfaces and an interior space. The walls can preferably have an upper portion near an upper end of the walls that defines a sealing flange that includes an internal edge, which defines an opening to the interior space of the container. The sealable container also incorporates a collar having an interior surface which fits around the container near the upper portion, which together define a subcollar space between the exterior surface of the container and the interior surface of the collar.

The preferred sealable container also includes a removable lid that is pivotally or hingedly attached to the collar and which has an interior surface that, when the lid is in a closed position, covers and seals the opening of the interior space of the container. The lid preferably has a sealing wall that depends from the surface of the lid and projects toward the sealing flange of the collar, and which is dimensioned or sized to remain inward of the sealing flange when the lid is closed. In variations of any of the embodiments of the invention, the sealing wall of the lid can be used alone and in place of the optional contemplated integral or flexible gaskets, and may also be used in combination therewith.

Even more preferably, the container includes in certain optionally preferred embodiments either an integrally formed gasket carried from the collar and/or a separately formed flexible gasket, either of which are preferably dimensioned to removably rest against the sealing flange. The gasket can be carried from a surface of the container such as the interior surface of the collar, the interior surface of the walls, or the sealing wall of the lid, as well as combinations thereof and wherein more than one gasket may be preferred for use. When the lid is in the closed position, the gasket, the sealing wall and the sealing flange are arranged and dimensioned so that the sealing wall biases the flexible gasket against the internal edge of the sealing flange to seal the subcollar space from the container interior, which prevents the contents of the container from spilling into the subcollar space.

In variations of these embodiments, the sealable container may also incorporate a modified collar that includes a raised seat or similar feature that carries the gasket or to which the gasket is affixed. As with other versions of the invention, the raised seat is configured so that that gasket projects inwardly to bias against and to extend beyond the internal edge of the sealing flange, which also serves to control spillage of the contents of the container. More preferably, the gasket can be arranged to remain biased against the sealing flange when the lid is in an open position.

In additionally preferred and optional embodiments of the invention, the sealable container can also include a removable seal that is substantially impervious to air, water, and even light if desired. The impervious seal preferably extends across the opening to seal the interior space and attaches to the sealing flange. In variations where the flexible gasket is included, the impervious seal preferably is situated underneath the gasket, and the flexible gasket flexes to enable removal of the removable seal and thereafter flexes back to rest against the sealing flange.

In most embodiments of the inventive container, the lid is rotatably, hingedly, and/or pivotally connected to the container with a live or mechanical hinge mounted between the lid and the collar so that the lid can move between open and closed positions. In certain preferred configurations of the invention, the novel sealable container is arranged wherein its walls form the container to have an approximately cuboid shape. However, the present invention is susceptible for use in cylindrical, rectilinear, obloid, and many other types of container packaging and for use with all kinds of containerized substances including fluids as well as powdered and granular materials.

Some modifications of the embodiments of the invention also contemplate inclusion of a removable scoop and a scoop holder that can be attached to the interior surface of the lid for holding a scoop. The most typical scoops have a bowl that is carried from a handle. The scoop holder of the invention is formed with a first bowl cover bracket and has a retainer that immobilizes the handle. A first projection is also included that extends from the interior surface of the lid and which has a handle holding notch that holds the handle away from the interior surface in a grasping position so that it is easy for a user to grasp and remove the scoop from the scoop holder.

In still other variations of any of the embodiments of the inventive sealable container, the sealing wall of the lid can be further modified to funnel inwardly toward a lower edge, either by a curved inwardly directed tapering of a lower edge of the sealing wall, or by a inwardly slanted or inclining tapering thereof, or by a combination thereof.

The new and novel sealable container also contemplates further modified lid arrangements that are compatible for use with any of the embodiments, modifications, and variations of the invention. Such lid configurations are directed at improving control of powdered contents, and the improvements preferably or optionally include the lid having a substantially domed central section that is dimensioned to be smaller than the sealing wall of the lid. More preferably, the substantially domed central section is joined to the lid by either the sealing wall or an angled wall, or both, wherein the angled wall tapers from the domed central section down to the interior surface of the lid at a point that is proximate to the sealing wall. The novel capability and benefits of the substantially domed central section are evident upon righting a disoriented container in that the angled wall and the sealing wall cooperate to direct any powder contents that may have accumulated within or become packed against the interior surface of the lid, down into the interior space of the container, which prevents entry into the subcollar space and other forms of spillage from the lid upon opening the container. Preferably, the angled tapered wall can have an angle relative to a vertical direction of between about 10 and 75 degrees, and more preferably between about 25 and 45 degrees, and even more preferably about 30 degrees.

Many variations of possible domed lid configurations according to the principles of the invention are contemplated and can include, for purposes of example without limitation, the substantially domed central section extending to the sealing wall to define an area between approximately 20 percent and approximately 80 percent smaller than the entire area defined by the removable lid. Still other variations of the domed lid can be used with any of the inventive embodiments and include the substantially domed central section to project upwardly with a height dimension that is between approximately 10 percent and approximately 60 percent of a cumulative lid height dimension. In one embodiment, the domed area is dimensioned to contain a volume sufficient for storing a scoop, as described later.

As before and as described elsewhere herein, the innovative sealable container embodiments can be further modified to have the walls joining each other and joining a bottom surface of the container to define junctions that have a unique and/or predetermined or a particular cross-sectional geometry. In these variations of any of the embodiments of the invention, a modified scoop is incorporated for removing contents from the interior space of the container. The modified scoop includes a bowl that has a rim that is substantially congruent to the particular cross-sectional geometry of the junctions between the walls and between the walls and the bottom surface of the container.

This arrangement enables a user conveniently to remove all of the contents of the container, whether powder or fluid, without the need to invert the container, which can result in unwanted spillage. These variations contemplate the particular cross-sectional geometry of the junctions between the walls and between the walls and the bottom surface to include any one of a number of geometries including, for purposes of example without limitation, a right angle, multiple angles such as multiple obtuse angles, and curvilinear geometries including a circular geometry having a particular radius. For each of these respective geometries, the rim of the scoop bowl includes a portion that is substantially congruent to the respective geometry, and/or which is flexible and/or deformable upon use to be made congruent thereto.

The sealable container of the present invention also can include many different strength and rigidity improving features that can include the walls of the container having the upper portion defining on the exterior surfaces a plurality of interiorly projecting indentations or recesses that either form a continuous groove or are spaced apart by intermittent stabilizing bridges. The indentations preferably include a downwardly facing top surface or upper lug ledge. The collar is also modified to include a plurality of attachment means, such as fins or spaced apart flex clips or engagement lugs that are formed with retainer faces or upwardly facing surfaces. In a preferred variation, flex clips preferably depend downwardly into the subcollar space and are positioned or juxtaposed to align with a plurality of spaced indentations when the collar is fitted over the upper portion of receptacle of the container.

This arrangement enables the upwardly facing surfaces to engage the downwardly facing top surfaces whereby the flex clips hold the collar to the upper end of the container. The flex clips may also preferably incorporate one or more stiffeners that increase the strength and rigidity of the flex clips to optimize engagement strength. The stiffeners also serve to improve an alignment capability established by the flex clips, which effectively center and align the collar about the upper portion of the container as the collar is fitted onto the upper portion of the walls of the container.

Additionally preferred variations of the flex clip and indentation modification include the upwardly facing surfaces being dimensioned to be smaller than the downwardly facing surfaces of the indentations so that the collar and container can absorb dimensional tolerance errors and enable the collar to fit around the upper portion of the container even if they are not sized exactly as may be desired for a perfect fit. Further preferable modifications to the various embodiments of the inventive sealable container include at least one of the collar and the upper portion of the walls to be formed from a substantially flexible material.

Using a flexible material such a polymeric material like polypropylene and/or polyethylene will enable at least one of the collar and the upper portion of the walls to flex to absorb dimensional tolerance errors and enable the collar to fit around the upper portion of the container. Either of these innovative adaptations are suitable for use with all of the variations of the embodiments of the invention and can, as a result, also accommodate shape errors and mismatch between at least one of the collar and the upper portion of the walls to enable the collar to fit around the upper portion of the walls, even when unexpectedly or undesirably misshaped collars and/or receptacles are encountered during manufacture and assembly.

In yet another particularly preferred and optional modification to the various embodiments of the invention described herein, the sealable container employs a modified collar having a substantially J-shaped and/or U-shaped, upside-down cross-section. In this variation, the J or U shaped cross section includes an outward projecting long wall, a substantially rounded, stiffening top portion, and an inward short wall that cooperate to define the subcollar space.

The invention is susceptible to still further optionally preferred variations wherein the container is strengthened by incorporating the plurality of indentations and the plurality of spaced apart fins or flex clips to be positioned in an oppositely paired relationship. In the application of a substantially cuboid container shape, the opposite pairing is established across opposite facing walls of the container, using generally 2-6 fins or clips per side. However paired, a force vector coupling is established between each of the pairs. This increases rigidity and structural stability and strength of the sealable container, and tends to absorb any tolerance mismatches when the collar is fitted onto the upper portion. Additionally, this particular arrangement of flex clips and indentations enables an aligning capability between the collar and the upper portion of the walls, which can be useful during assembly of the inventive sealable containers. The flex clips can be further strengthen by including at least one stiffening rib on one of more of the flex clips.

Still other contemplated modifications are suitable for use with all of the modifications, variations, adaptations already described, which include the bottom surface including pressure control features that can prevent deformation of the container, and which can also be adapted to enable controlled deformation to relieve stress on the container due to internal pressure being higher than an external ambient atmospheric pressure, which can occur when a sealed container is subjected to pressure changes due to altitude changes and/or other types of crushing forces that may be experienced during manufacture, filling with product, and during use and transit.

In this adaptation of the preferred embodiments of the invention, the bottom surface includes a pressure control portion that is otherwise referred to as a central raised stiffener portion, which contrary to the plain meaning of the word stiffener, may also incorporate a flexible and/or collapsible pressure relief section. An outer planar portion that is substantially flat for resting on a surface surrounds the central raised stiffener portion. The central raised stiffener portion preferably projects or is directed towards the interior space in a plurality of steps having riser and tread portions, the riser portions generally project in a direction substantially upward relative to the outer planar portion and the tread portions are approximately parallel to the outer planar portion. The plurality of these riser and tread steps further contemplate multiple variations.

In one version, the steps are stiffened by thickening in a cross-section to resist deformation due to pressure changes relative to the pressure inside the sealed container. In another complementary version that can be used alone or in combination with the stiffened variation, an accordion or bellowed type arrangement of the steps or series of steps are included, which flex or deform in response to pressure changes external to the sealable container so as to lessen the net pressure differential between the interior of the sealable container and the ambient outside pressure.

In still other variations of the embodiments of the invention, a sealable container includes a top wall, a bottom wall, a front wall, a rear wall, a first side wall, and a second side wall. Each of the walls has a substantially rectangular shape. The rectangular shape of each wall enables the container to be stored easily on a shelf or counter-top. The top wall and portions of the front wall, the rear wall, the first side wall, and the second side wall form a lid. The lid is pivotally attached to the rear wall by a hinge. The lid can be opened by rotation thereof about the hinge. The front wall has at least one recess and the rear wall has at least one recess. The at least one recess of the front wall and the at least one recess of the rear wall are adjacent to the first side wall. The recesses provide a grip feature, which enables the user to manipulate the lid of the container with one hand when the container rests on a flat surface, e.g., a tabletop or a counter top. The container is preferably made of a polymeric material.

The container provided herein is suitable for holding granular material or powdered material, the container having a scoop furnished therewith. The scoop has a handle and a bowl. The interior of the container is characterized by having corners that are congruent with the bowl of the scoop furnished with the container. The congruency of the bowl of the scoop with the corners of the container enables the user to remove the last bit of powder remaining in the container. A flexible seal can be applied to the interior of the container to provide a substantially moisture-impervious, oxygen-impervious seal for the granular material or powdered material.

The lid is furnished with a scoop holder, whereby the scoop can be stored outside the bulk of the contents of the container to enable easy, clean access to the contents of the container. The container can be opened and closed with a single hand.

These variations, modifications, and alterations of the various preferred and optional embodiments may be used either alone or in combination with one another and with the features and elements already known in the prior art and also herein described, which can be better understood by those with relevant skills in the art with reference to the following detailed description of the preferred embodiments and the accompanying figures and drawings.

BRIEF DESCRIPTION OF THE DRAWING(S)

Without limiting the scope of the present invention as claimed below and referring now to the drawings and figures, wherein like reference numerals, and like numerals with primes, across the drawings, figures, and views refer to identical, corresponding, or equivalent elements, methods, components, features, and systems:

FIG. 1 is a perspective view of one embodiment of the container described herein. In this figure, the lid of the container is closed, and tamper resistance elements are shown; as is a side of the container having a grip feature.

FIG. 2 is a perspective view of the embodiment of the container shown inFIG. 1 that depicts sides of the container not shown inFIG. 1, including a hinged side, and a side of the container having a grip feature.

FIG. 3 is a perspective view, greatly enlarged, of the area designated by the line3-3 inFIG. 2. This figure shows a cut-away view of a mechanical hinge.

FIG. 4 is an exploded perspective view of an assembly comprising a collar and a lid. The assembly of the collar and the lid can be applied to a tub-shaped receptacle to form the container described herein.

FIG. 5 is a perspective view of a tub-shaped receptacle to which the assembly comprising the collar and the lid, shown inFIG. 4, can be applied to form the container described herein.

FIG. 6 is a side view in elevation of the embodiment of the container shown inFIG. 1. This figure shows the front wall of the container, which has a grip feature.

FIG. 7 is an end view in elevation of the embodiment of the container shown inFIG. 1. This figure shows the first side wall of the container, which is adjacent to the grip features of the front wall and the rear wall of the container.

FIG. 8 is an end view in elevation of the embodiment of the container shown inFIG. 1. This figure shows the second side wall of the container, which is not adjacent to the grip features of the front wall and the rear wall of the container.

FIG. 9 is a top plan view of the interior of the embodiment of the container shown inFIG. 1. In this figure, the lid is removed from the container.

FIG. 10 is a cross-sectional view taken along line10-10 inFIG. 1. This figure illustrates the lid attached to the collar by means of a living hinge to form an assembly thereof.

FIG. 11 is a cross-sectional view taken along line11-11 inFIG. 1. This figure illustrates a latch that can be used to maintain the lid in a closed position.

FIG. 12 is a cross-sectional view taken along line12-12 inFIG. 4. This figure illustrates the lid attached (rather than exploded as inFIG. 4) to the collar of the assembly comprising the collar and the lid.

FIG. 13 is a perspective view of the open lid attached to the collar. This figure shows the interior surface of the lid incorporating an attached scoop holder and a restraint and standoff bracket for the handle of the scoop. This figure further shows a substantially moisture-impervious, oxygen-impervious seal attached to the rim or sealing flange of the tub-shaped receptacle.

FIG. 14 is cross-sectional view taken along line14-14 inFIG. 13. This figure illustrates attachment of the substantially moisture-impervious, oxygen-impervious seal to the rim of the tub-shaped receptacle, and a guide fin securing the collar to the receptacle.

FIG. 15 is an exploded perspective view of the interior surface of the lid showing the scoop removed from the scoop holder and the restraint for the handle of the scoop.

FIG. 16 is a top perspective view of another embodiment of the container described herein. In this figure, the domed container lid is closed and a side of the container includes grip features.

FIG. 17 is a bottom perspective view of the embodiment of the container ofFIG. 16, and rotated to show rear and bottom sides of the container that are not shown inFIG. 1.

FIG. 18 is a bottom plan view of the embodiment of the container ofFIGS. 16 and 17 showing features of the bottom wall of the container that include stepped pressure compensating riser and tread features.

FIG. 19 is a side elevation view of a first side wall of the embodiment of the container ofFIG. 16 showing the front and rear gripping features.

FIG. 20 is a partial top perspective view of the embodiment of the container ofFIG. 16 having the lid removed for purposes of illustrating the collar and the arrangement of the impervious seal affixed and covering the opening of the container.

FIG. 21 is another partial perspective view of the embodiment of the container ofFIG. 23 also having the gasket and impervious seal removed to illustrate the collar as it is retained on the tub-shaped receptacle of the container by engagement of flex clips in a plurality of oppositely facing indentations.

FIG. 22 is a partial perspective view of the embodiments of the container shown inFIGS. 20 and 21 having the collar and the impervious seal removed to show the collar engagement indentation features of the upper portion of the receptacle.

FIG. 23 is a cross-section view of the upper end and sealing flange of the tub-shaped receptacle of the embodiment of the container ofFIGS. 20-22, which is taken along section line23-23 ofFIG. 22. The impervious seal has been added for improved illustration purposes.

FIG. 24 is a perspective view of the collar of the embodiments of the container ofFIGS. 16-22.

FIG. 25 is a cross-section view of the collar of the embodiment of the container shown inFIG. 24 and taken along section line25-25.

FIG. 26 is a cross-section view of the collar of the embodiment of the container shown inFIGS. 16-22 and taken through a flex clip, i.e. along section line26-26 ofFIG. 24, but having certain additional lid structure shown for illustration purposes.

FIG. 27 is a cross-sectional view of an alternative variation of the sealing wall illustrated inFIG. 26.

FIG. 28 is a cross-sectional view of another alternative variation of the sealing wall illustrated inFIG. 26.

FIG. 29 is a top plan view of the embodiment of the container ofFIGS. 16-19 showing the top wall including the lid and cover assembly.

FIG. 30 is a perspective view of the underside of the lid of the embodiment of the container ofFIGS. 16-19 and illustrating a scoop holder retaining a scoop.

FIG. 31 is a perspective view of the underside of the lid ofFIG. 30 having the scoop removed for further illustration of the scoop holder.

FIGS. 32 and 33 are perspective views of the scoop in different orientations to show alternative variations of the congruent rim of the bowl of the scoop.

FIG. 34 is a section view of the lid of the embodiment of the container ofFIG. 29 and taken along section line34-34 to show a laterally extending cross section of the domed and angled wall lid variation.

FIG. 35 is a section view of the lid of the embodiment of the container ofFIG. 29 and taken along section line35-35 with a view directed towards retainer elements of the scoop holder.

FIG. 36 is a section view of the lid of the embodiment of the container ofFIG. 29 and taken along section line36-36 with a view directed towards the scoop holder bowl brackets.

FIG. 37 is a section view of the embodiment of the container ofFIG. 18, and taken along section line37-37, which depicts the bottom pressure control, centralized stiffener, and/or stepped portion modification to the bottom of the receptacle.

FIGS. 38aand38bare detail views taken aboutdetail view lines38 inFIG. 37 and illustrate alternative flexible and pressure responsive, decreased thickness cross-sectional configurations of the centralized stiffener or stepped portion of the bottom of the receptacle.

FIGS. 39aand39bare detail views taken about detail view lines39 inFIG. 37 and illustrate another alternative flexible and pressure responsive, bellows and/or pleated cross-sectional configuration of the centralized stiffener or stepped portion of the bottom of the receptacle.

DETAILED DESCRIPTION OF CERTAIN EMBODIMENTS AND VARIATIONS

As used herein, the expression “top wall” means the side of the container exclusive of the bottom wall, the first side wall, the second side wall, the front wall, and the rear wall of the container. Although it is somewhat arbitrary which wall is designated front or rear or side, for purposes of consistency, “rear” is generally used for a wall with a hinge and “front” is used for a wall with a latch mechanism. The term “lid” means a hinged cover for a hollow receptacle and is intended to include either an independently formed and removable lid and other variations that can include the lid alone, the lid and collar assembly, and other variations wherein the lid and/or collar are formed from the top wall of the container plus the upper portion of the first side wall, the upper portion of the second side wall, the upper portion of the front wall, and the upper portion of the rear wall of the container. As used herein, the term “bracket” means a wall-anchored fixture adapted to support a load.

Referring now toFIGS. 1,2, and5-9, acontainer10 includes atop wall12, abottom wall14 with an interior bottom surface14a, afront wall16, arear wall18, afirst side wall20, asecond side wall22. Thefront wall16 comprises an interiormajor surface16a, an exterior major surface16b, anupper portion16d, and alower portion16e. Therear wall18 comprises an interiormajor surface18a, an exterior major surface18b, anupper portion18d, and alower portion18e. Thefirst side wall20 comprises an interiormajor surface20a, an exterior major surface20b, anupper portion20d, and alower portion20e. Thesecond side wall22 comprises an interiormajor surface22a, an exterior major surface22b, anupper portion22d, and alower portion22e.

Although thecontainer10 and the later described variations an modifications thereto are illustrated in the various descriptions and figures to be substantially cuboid, a cuboid shape is depicted only because such a shape is sometimes found by those skilled in the relevant arts to be the more challenging type of container to describe, manufacture, and to use. However, the present invention is susceptible for use with all shapes and sizes of containers including cylindrical, obloid, rectilinear, and other shapes, and for use with containers adapted for fluids as well as for the powdered materials and/or product described most often herein. Furthermore, each of the optional and preferred embodiments of the invention contemplate interchangeability with all of the various features, components, modifications, and variations illustrated throughout the written description and pictorial illustrations.

As can be seen inFIGS. 1,2, and4, in an exemplary embodiment of the invention, an assembly of a lid and a collar of thecontainer10, which are discussed here and in the context of other variations elsewhere herein, is formed from and/or includes a part of thetop wall12 and theupper portion16dof thefront wall16, theupper portion18dof therear wall18, theupper portion20dof thefirst side wall20, and theupper portion22dof thesecond side wall22. The lid and the collar variations contemplated here may be formed integrally with the walls, may be formed as an integral lid and collar assembly and/or combination, and may also be provided as a separate lid and a separate collar that can be joined with a hinge or another type of pivotally and/or removable device or connection to one or more portions of the walls. As will be described in more detail below, the lid and collar arrangements can be attached and assembled to the inventive containers in a variety of ways including clips, friction-fit configurations, and using other equally desirable and optional components and methods.

The lid is also described in more detail below in connection with the various embodiments of the invention and will hereinafter be referred to by the reference characters “L” and “D” (seeFIGS. 1,2,4, and29-31) to refer to the various embodiments and variations thereof. Focusing initially on the lid “L” of the version illustrated inFIGS. 1,2, and4, lid “L” has an interior surface, which will hereinafter be referred to by the reference character “L_i”. The lid also has an exterior surface, which will hereinafter be designated by the reference character “L_e”. Ahinge24 attaches the lid “L” to therear wall18.

Thefront wall16 has arecess26apositioned to facilitate gripping of thecontainer10 by the left thumb of the user. Therear wall18 also has arecess26bpositioned to facilitate gripping of thecontainer10 by the fingers of the left hand of the user. Therecess26acan further have anadditional recess27ato indicate the precise location in therecess26afor the placement of the thumb of the user. Therecess27ais smaller in area than therecess26a. Therecess27ais preferably circular in shape, but other shapes are also acceptable. Therecess26bcan further have an additional recess27bto indicate the precise location in therecess26bfor the placement of the desired finger of the user. The recess27bis smaller in area than therecess26b. The recess27bis preferably circular in shape, but other shapes are also acceptable. The

recesses

26aand26bare positioned adjacent to thefirst side wall20 of thecontainer10.

In an alternative embodiment (not shown), the

recesses

26a,27a,26b, and27bcan be positioned to facilitate gripping of thecontainer10 by the right thumb of the user and by the fingers of the right hand of the user. In this alternative embodiment, the recesses would be positioned adjacent to thesecond side wall22 of thecontainer10.

In still another alternative (not shown), thefront wall16 can have two recesses and therear wall18 can have two recesses, one recess on thefront wall16 and one recess on therear wall18 positioned to facilitate gripping of thecontainer10 by the left thumb and the fingers of the left hand of the user and one recess on thefront wall16 and one recess on therear wall18 positioned to facilitate gripping of thecontainer10 by the right thumb and the fingers of the right hand of the user. In this embodiment, pairs of recesses would be positioned adjacent to both thefirst side wall20 and thesecond side wall22.

Thehinge24 is preferably designed in such a manner that when the lid “L” of thecontainer10 is opened to enable the user to obtain access to the contents of thecontainer10, the lid “L” will not fall forward to the closed position. Further, the lid “L” will not fall too far backward beyond the open position desired, which would cause acontainer10, when nearly empty, to tip over onto therear wall18. Thehinge24 can be a living hinge or a conventional mechanical hinge. A living hinge is a thin flexible web of material that joins two rigid bodies together. In this case, the living hinge connects two segments of an object, i.e., the lid “L” and therear wall18 of thecontainer10, to keep the segments together and allow the object to be opened and closed.

The material used to make a living hinge is preferably a very flexible polymeric material, such as, for example, polypropylene and polyethylene. Living hinges can be flexed numerous times without failure. Living hinges are described in more detail at http://www.efunda.com/designstandards/plastic_design/hinge.cfm, Nov. 6, 2006, pages 1-3 and at http://engr.bd.psu.edu/pkoch/plasticdesign/living_hinge.htm, Nov. 6, 2006, pages 1-8, both of which are incorporated herein by reference.

Conventional mechanical hinges include, but are not limited to, hinge assemblies comprising a first panel having two or more sockets mounted on an edge thereof and a second panel having two or more pins mounted on an edge thereof, the aforementioned pins mating with the aforementioned sockets to join the edge of the first panel to the edge of the second panel, the pins and the sockets allowing rotation of the first panel about the second panel. Conventional mechanical hinges are described in more detail in http://www.hardwaresource.com/index.asp, see “other hinges”, Dec. 26, 2006, incorporated herein by reference.

Another type of equally suitable mechanical hinge can be seen with reference toFIGS. 16-21,24, and29-31, among other figures and description discussed elsewhere herein.

Thetop wall12, thebottom wall14, thefront wall16, therear wall18, thefirst side wall20, and thesecond side wall22 enclose a hollow interior space “H” (FIGS. 5,9) into which a product can be inserted. While the hollow interior space “H” can hold any solid or liquid product, the particular product for which thecontainer10 is designed is typically a flowable solid material, such as, for example, a powdered product and/or a granular product. Representative examples of such a powdered product or granular product include, but are not limited to, infant formula, flour, coffee, and sugar.

Referring now toFIGS. 13,14,20,23, and26, a substantially moisture-impervious, oxygen-impervious seal28 is attached to the interior

major surfaces

16a,18a,20a,22aof thefront wall16, therear wall18, thefirst side wall20, and thesecond side wall22, respectively. The substantially moisture-impervious, oxygen-impervious seal28 can be formed from a sheet of material substantially impervious to oxygen, moisture, and light. A material suitable for use in preparing the substantially moisture-impervious, oxygen-impervious seal28 can be a sheet of foil, such as, for example, aluminum foil, or a foil made of some other metallic material, or a combination of a layer of materials that can include a metallic, a polymeric, and other material layers. Optionally, the substantially moisture-impervious, oxygen-impervious seal28 can also be impervious to light. A pull-tab28aon the substantially moisture-impervious, oxygen-impervious seal28 can be used to facilitate removal of theseal28 by the user.

In one embodiment, the substantially moisture-impervious, oxygen-impervious seal28 be applied at a position near the edges of theupper portion16dof thefront wall16, theupper portion18dof therear wall18, theupper portion20dof thefirst side wall20, and theupper portion22dof thesecond side wall22 on the interior

major surfaces

16a,18a,20a,22a, of thefront wall16, therear wall18, thefirst side wall20, and thesecond side wall22, respectively, of thecontainer10. The substantially moisture-impervious, oxygen-impervious seal28 can be removed by pulling the pull-tab28aof theseal28 and removing theseal28 from the positions of attachment to the interior

major surfaces

16a,18a,20a,22a, of thefront wall16, therear wall18, thefirst side wall20, and thesecond side wall22, respectively, of thecontainer10.

Referring now toFIGS. 13,15,30-31,35, and36, attached to the interior surface “L_i” of the lid “L” (and an interior surface “D_i” of later described lid “D”) is ascoop holder30. Thescoop holder30 comprises afirst bracket30aand asecond bracket30b. Thescoop holder30 is capable of retaining ascoop32 in such a position so as to be separated from the product. Thescoop32 comprises ahandle34 attached to abowl36 wherein the handle may incorporate astiffener34b(FIG. 330,32-33). Other variations of equally preferred and optionallydesirable scoops30 are discussed below and can be seen with reference toFIGS. 30,32, and33, and in other places elsewhere herein.

Thescoop32 is positioned in thefirst bracket30aand thesecond bracket30bin such a manner that the user is induced to remove thescoop32 by thehandle34, rather than by thebowl36. Furthermore, thefirst bracket30aand thesecond bracket30bare positioned so that thescoop32 is held by thefirst bracket30aand thesecond bracket30bin such a manner as to prevent the powdered product or granular product from entering thebowl36 of thescoop32.

As discussed elsewhere, this feature is of particular benefit to users of the containers of the invention in view of the fact that such containers are subjected to unpredictable amounts of jostling, shaking, upside-down or inverted shipment by truck, car, and mail carrier, and impacts during manufacture, distribution, and daily use by consumers. Such a container is possibly subject to a higher level of abuse in environments involving children and child care, such as where a parent carries a powdered product in a container such as those described herein in an automobile and/or in a heavily-used diaper bag, both of which can experience the ravaging abuse of curious children at play.

Thefirst bracket30aof thescoop holder30 covers the opening in thebowl36 of thescoop32, thereby preventing the product in the container from entering thebowl36 of thescoop32, which could lead to scattering product outside of the container upon removal of thescoop32 from thescoop holder30. Thebowl36 of thescoop32 does not interfere with substantially moisture-impervious, oxygen-impervious seal28 when thescoop32 is positioned in thescoop holder30. Thescoop holder30 is positioned in such a manner that thehandle34 of thescoop32 is prevented from contacting the substantially moisture-impervious, oxygen-impervious seal28 positioned over the contents of the container, thereby protecting the integrity of theseal28. In addition, thescoop holder30 prevents thehandle34 from being dislodged and maintains the position of thescoop32 during shipping and storage.

As shown inFIGS. 13 and 15, thescoop32 can be inserted into thescoop holder30 by sliding thebowl36 of thescoop32 into theopening30cbetween thefirst bracket30aand thesecond bracket30b. When inserted into thescoop holder30, thescoop32 is retained by thefirst bracket30aand thesecond bracket30bby means of a friction fit. Thescoop32 can be attached to the lid “L” by aligning thebowl36 of thescoop32 with thefirst bracket30aand thesecond bracket30bof thescoop holder30 and sliding thebowl36 of thescoop32 against thefirst bracket30aand thesecond bracket30bof thescoop holder30, thereby generating a friction fit between thebowl36 of thescoop32 and thescoop holder30.

An optional, but desirable, feature of the lid “L” is arestraint38 for preventing thehandle34 of thescoop32 from rotating if the connection (i.e., the friction fit) between thescoop holder30 and thebowl36 of thescoop32 loosens sufficiently to allow thebowl36 of thescoop32 to rotate in thescoop holder30, thereby allowing thehandle34 of thescoop32 to contact the substantially moisture-impervious, oxygen-impervious seal28 and possibly puncture theseal28.

As shown inFIGS. 13,15, and30-31, theaforementioned restraint38 comprises afirst projection40 rising upwardly from the interior surface “L_i” of the lid “L” and having anotch42 at one end thereof for receiving anedge34aof thehandle34 of thescoop32. Theaforementioned restraint38 further comprises asecond projection44 positioned between thescoop holder30 and thefirst projection40 and rising upwardly from the interior surface “L_i” of the lid “L”. Thesecond projection44, which is of greater length than thefirst projection40, has akeeper46 formed at one end thereof to prevent thehandle34 of thescoop32 from moving downwardly toward the substantially moisture-impervious, oxygen-impervious seal28 if thebowl36 of thescoop32 rotates in thescoop holder30.

Thefirst projection40 need not exhibit any level of flexibility, but thesecond projection44 should be sufficiently flexible that it can be moved sufficiently by thehandle34 of thescoop32 when thescoop32 is being returned to thescoop holder30 and therestraint38. As can be understood with continued reference toFIGS. 15,30, and31, the upwardly risingfirst projection40 cooperates with the second projection andrestraint44 to releasably capture and hold thehandle34 of thescoop32 at a distance above the interior surface “L_i” of the lid “L” (and, the interior surface “D_i” of the alternative lid “D”). In this way, the user can easily grasp thehandle34 because a grasping position is maintained to enable convenient removal by a user, which is illustrating inFIGS. 15,30, and31, among other places. The handle is maintained at a stand-off distance in the grasp position, which is established by the height offirst projection40 between thehandle34 and the interior surfaces “L_i” and “D_i”.

Thebowl36 of thescoop32 has arim36awith a cross-sectional geometry that is shaped to be congruent with the junctions or

corners

50a,50b,50c, and50d, formed by the junctions between thefront wall16 and thefirst side wall20 and thebottom wall14, thefront wall16 and thesecond side wall22 and thebottom wall14, therear wall18 and thefirst side wall20 and thebottom wall14, and therear wall18 and thesecond side wall22 and thebottom wall14, respectively. The corners or

junctions

50a,50b,50c, and50dare shown inFIG. 9 and are also evident from the exterior views ofFIGS. 1,2, and5-8. The shape of the

corners

50a,50b,50c, and50dand the shape of therim36aof thebowl36 of thescoop32 enable the maximum quantity of product to be removed from thecontainer10 by thescoop32, without having to invert or to turn thecontainer10 over to pour out the product.

As shown inFIG. 9, the

corners

50a,50b,50c, and50dhave a particular cross-sectional geometry and are preferably rounded, and are more preferably formed with the radius of each

corner

50a,50b,50c, and50dbeing approximately equal to the radius of therim36aof thebowl36 of thescoop32. In an alternative embodiment (FIG. 32,corner50f), the corners can have other shapes, e.g., the

corners

50a,50b,50c, and50dand the corners or junctions between thebottom wall14 and the

walls

16,18,20, and22 can meet to form right angles. Therim36aof thebowl36 can be formed with a portion of the rim having a right angle (see, e.g.,FIGS. 32 & 33) that is generally congruent to that of the contemplated right angles of the corners or junctions between the

walls

16,18,20, and22 themselves and between thebottom wall14 and the

walls

16,18,20, and22.

In still another embodiment (see exemplary scoop variation inFIG. 33), the

corners

50a,50b,50c, and50dcan have three sides, with two 120° angles forming each corner. In these alternative embodiments, thebowl36 of thescoop32 would have a shape and/or arim portion36c(FIG. 33) that would be congruent with the shape of each

corner

50a,50b,50c, and50d. See also, for example, the analogous variation of a right angle scoop rim and wall junction illustrated inFIG. 32. In further optional or preferred arrangements, the

walls

16,18,20,22 join thebottom wall14 to also have the particular cross-section geometry and are also more preferably rounded, and are even more preferably formed with radius similar to that of each

corner

50a,50b,50c,50dto be approximately equal to the radius and/or to have a shape congruent to that of thebowl36 of thescoop32. In any of these illustrative embodiments, those skilled in the art may comprehend from the discussion elsewhere herein that the material used to form thecontainer10 and thescoop32 and/or thebowl36 of the scoop may be of a flexible polymeric material that can enable therim36aof thebowl36 to flex and/or to deform either a small or a more generous amount. In this way the cross-sectional geometry of therim36acan, during use, be biased against the junctions or corners in a way whereby therim36amore readily conforms to the particular cross-sectional geometry to maximize the ease of removal of the contents from the hollow interior space “H”. InFIGS. 32 and 33 examples of congruently shaped bowls36 are shown. InFIG. 32, the rim has aportion36barranged to have a right angle that can conform to and be congruent with acorner50fof a container having a similar right-angled wall junction. InFIG. 33, the rim has amulti-angled rim36cwherein multiple obtuse angles are formed to be congruent with a similarly shaped wall junction (not shown, but similar in concept to walljunction50fofFIG. 32).

The shape of thebottom wall14 of thecontainer10 and the shape of thetop wall12 of thecontainer10 can be designed to enable a plurality ofcontainers10 to be stacked, one upon another, such as, for example, on a shelf in a grocery store. It is preferred that the shape of the perimeter of thebottom wall14 of thecontainer10 be substantially similar to the shape of the perimeter of thetop wall12 of thecontainer10. Thetop wall12 can be flat or contoured and thebottom wall14 can be flat or contoured. Generally, if thetop wall12 is contoured, thebottom wall14 must also be contoured in such a manner as to be substantially congruent with thetop wall12, so that a plurality ofcontainers10 can be stacked one on top of another.

However, so long as the lid “L” is flat, thecontainers10 will be stackable even if thebottom wall14 of thecontainer10 is not flat, provided that thebottom wall14 of thecontainer10 is designed so that thetop wall12 of thecontainer10 remains in a horizontal orientation relative to a horizontal shelf. InFIGS. 1,2,4,10-12, and inFIGS. 16,19,30-31, and34-36, it can be seen that the top wall12 (or also top wall212) of the container10 (or the container210) is convex in shape. Accordingly, for the embodiment shown inFIGS. 1 and 2, thebottom wall14 of thecontainer10 is preferably concave in shape, so that a plurality ofcontainers10 can be stacked one upon another.

The rectangular shape of thecontainer10, in combination with the

recesses

26aand26bfor gripping, enables the user to hold thecontainer10 with one hand, while using thescoop32 with the other hand. The shape of thecontainer10 enables ease of access to the product during the act of removing the product from thecontainer10 by means of thescoop32.

The shape of thecontainer10 enables the lid “L” to be securely fitted to the

upper portions

16d,18d,20d, and22d, of thefront wall16, therear wall18, thefirst side wall20, and thesecond side wall22, respectively, of thecontainer10.

Referring now toFIGS. 1,4, and11, (and toFIGS. 16 and 19 for illustrations of later discussed embodiments and variations thereto) a container-lockingfeature52 associated with the lid “L” and thefront wall16 enables the lid “L” to be securely, and robustly fitted to the edges of the

upper portions

16d,18d,20d, and22d, of thefront wall16, therear wall18, thefirst side wall20, and thesecond side wall22, respectively, of thecontainer10 over a range of the dimensional tolerances of thecontainer10. The container-lockingfeature52 comprises alatch54 having a tab orflap56, afirst edge58aand a second edge58b.

Afirst bridge60aand a second bridge60bproject from thefirst edge58aand the second edge58bof thelatch54, respectively. Thefirst bridge60acomprises a small stem62aat one end of which is a knob62b; the second bridge60bcomprises asmall stem64aat one end of which is a knob64b. The knobs62band64band portions of the small stems62aand64afit into small recesses (not shown) in the exterior surface “L_e” of the lid “L”, which small recesses are congruent with thebridges60aand60b, and are prevented from being removed from the recesses (not shown) by friction, until thelatch54 is opened for the first time. The function of thebridges60aand60bis to indicate any tampering with thelatch54. Referring now toFIG. 11, the tab orflap56 of thelatch54 is attached to thefront wall16 by ahinge68, typically a living hinge, which connects the tab orflap56 to anelement70 projecting from the exterior major surface16bof thefront wall16.

When thelatch54 is in a non-tampered state, thefirst bridge60aand the second bridge60bretain their integrity. Prior to being used, the tab orflap56 is maintained in a closed position by gripping akeeper72, which is formed into a recessedportion74 of the exterior major surface16bof thefront wall16. When thelatch54 is opened by rotating the tab orflap56 from its initial unopened position to a second position away from thekeeper72, the pull force breaks the small stems62aand64a, thereby allowing the lid “L” of thecontainer10 to be lifted upwardly so that the lid “L” can rotated about the hinge24 (seeFIG. 2) to enable the user to obtain access to the interior of thecontainer10.

If the user finds that extremely little pulling force is required to break the small stems62aand64aof thebridges60aand60b, respectively, the consumer will suspect that tampering with thelatch54 has taken place. After the small stems62aand64aare broken, the knobs62band64bhelp to retain the remaining portions of thebroken bridges60aand60bin the recesses in the exterior surface “L_e” of the lid “L”. In order to close the lid “L” of thecontainer10 after a given use, the lid “L” is rotated downwardly so that the edges of the lid “L” come into contact with the edges of the

upper portions

16d,18d,20d, and22dof thefront wall16, therear wall18, thefirst side wall20, and thesecond side wall22, respectively, of thecontainer10, whereupon the tab orflap56 of thelatch54 can grip thekeeper72 to maintain thecontainer10 in a closed position until the user desires to open thecontainer10 at a later time. Even more preferably, thelatch54 engages and disengages with a click that can be perceived both by tactile as well as auditory feedback, which give the user additional cues regarding the open or closed state of the lid “L” and the contained 10.

As shown inFIGS. 1 & 16, a tamper-indicatingseal76 can be adhered to the front or another place on the container to present evidence of tampering, damage, or other circumstance. InFIG. 1, thetamper seal76 is affixed to wall16 and the lid “L” of thecontainer10 to provide a visual indication as to whether thecontainer10 has been opened prior to being sold. In one embodiment, the tamper-indicatingseal76 comprises a backing76aadhered to a layer of adhesive (not shown). The backing76acan be a sheet of tearable paper or tearable polymeric material. The adhesive can be a moderately to highly aggressive adhesive. Thetamper seal76 can be positioned in a number of equally effective locations, including for purposes of example without limitation, across the interface between the lids and walls as well as in appropriate locations across the contemplated assemblies of collars and lids.

It is preferred that a score line or a line of perforations be present in the backing76aof the tamper-indicatingseal76 at the line where the lid “L” meets theupper portion16dof thefront wall16 of thecontainer10. An attempt the open thecontainer10 will result in tearing the backing76aalong the score line or the line of perforation, thereby indicating visually an unauthorized attempt to open or an actual opening of thecontainer10.

The dimensions of thecontainer10 and the components thereof are not critical. However, for the purpose of illustration, typical dimensions of the various components can be as follows:

Top wall

12 and bottom wall14: 4 in. to 5 in.×5.5 in to 6.5 in.

Front wall

16 and rear wall18: 5.5 in. to 7.5 in.×5.5 in. to 6.5 in.

First side wall

20 and second side wall22: 4 in. to 5 in.×5.5 in. to 7.5 in.

Volume ofcontainer10 to contain powder weights of: 10 to 60 oz.; more typically 20 to 40 oz.; for example 23 oz. to 34 oz.

There are numerous methods of making thecontainer10 described herein. However, in order to facilitate mass production of containers having a variety of volumes, thecontainer10 can be assembled in a variety of equally suitable ways and by using any of a number of effective and optionally preferred mechanisms. For purposes of illustration without limitation, the exemplary configurations shown here contemplate friction-fit, clip, and similar types of lid-collar-container assembly devices. Such examples can be seen in the various figures including inFIGS. 4-8, and later in other variations and modifications of the embodiments of the invention depicted inFIGS. 16-28.

Referring now toFIGS. 4,5,6,7, and8, a tub-shapedreceptacle80 comprising thebottom wall14, thelower portion16eof thefront wall16, thelower portion18eof therear wall18, thelower portion20eof thefirst side wall20, and thelower portion22eof thesecond side wall22 can be provided by a supplier. Thelower portion16eof thefront wall16, thelower portion18eof therear wall18, thelower portion20eof thefirst side wall20, and thelower portion22eof thesecond side wall22 typically comprise about from about 60% to about 90% of the height of the aforementionedfront wall16,rear wall18

first side wall

20, andsecond side wall22, respectively.

Anassembly82 comprising acollar84 and the lid “L” (alternatively referred to herein as “collar/lid assembly82”) can be provided by a supplier. The collar/lid assembly82 comprises thetop wall12, theupper portion16dof thefront wall16, theupper portion18dof therear wall18, theupper portion20dof thefirst side wall20, and theupper portion22dof thesecond side wall22. Theupper portion16dof thefront wall16, theupper portion18dof therear wall18, theupper portion20dof thefirst side wall20, and theupper portion22dof thesecond side wall22 typically comprise from about 10% to about 40% of the height of thefront wall16,rear wall18

first side wall

20, andsecond side wall22, respectively.

The ratios for thelower portion16eof thefront wall16, thelower portion18eof therear wall18, thelower portion20eof thefirst side wall20, and thelower portion22eof thesecond side wall22 and the ratios for theupper portion16dof thefront wall16, theupper portion18dof therear wall18, theupper portion20dof thefirst side wall20, and theupper portion22dof thesecond side wall22 primarily depend upon the volume of thecontainer10, which in turn depends upon the volume of the tub-shapedreceptacle80. The size of theassembly82 of the collar and lid essentially remains constant, but the volume of the tub-shapedreceptacle80 varies to provide containers of various volumes.

Various attachment methods for securing the collar and lid assembly to the receptacle are contemplated by the invention, and combinations and variations may be found to be equally suitable and can be interchanged as needed as can be better understood with reference toFIGS. 3-4,10-14, and16-36. Referring first toFIGS. 3-4 and10-14, those skilled in the art will see that in one variation of the preferred embodiments of the invention, each corner84a,84b,84c, and84dof thecollar84 has at least oneguide fin86a, and preferably two

guide fins

86a,86b, to properly align thecollar84 with the tub-shapedreceptacle80. The tub-shapedreceptacle80 is made up of thebottom wall14 and those portions of thefront wall16, therear wall18, thefirst side wall20, and thesecond side wall22 that are not made up of the

upper portions

16d,18d,20d, and22dof thefront wall16, therear wall18, thefirst side wall20, and thesecond side wall22, respectively, which

upper portions

16d,18d,20d, and22dmake up thecollar84.FIGS. 5 though8 show a plurality of indentations as acontinuous groove90 about thereceptacle80.

Thecollar84 is joined to the tub-shapedreceptacle80 by aligning the

guide fins

86a,86bin each corner84a,84b,84c, and84dof thecollar84 with the

corners

80a,80b,80c, and80dlocated at a sealing flange or rim88 of the tub-shapedreceptacle80 and press-fitting thecollar84 to the tub-shapedreceptacle80, such that the attaching means or

fins

86a,86b, etc., are secured in thegroove90 of thereceptacle80. The sealing flange or rim88 terminates in an internal edge89 that defines an opening to the hollow interior space “H”.

The

guide fins

86a,86bin each corner84a,84b,84c, and84dof thecollar84 snugly fit into agroove90 running around the exterior periphery of the tub-shapedreceptacle80. Thegroove90 has a downward facing surface that engages an upward facing edge of the

fins

86a,86b, etc. After thecollar84 is joined to the tub-shapedreceptacle80, the tamper-indicatingseal76 is applied to thefront wall16 and the lid “L” of thecontainer10. The later-described attachment means illustrated inFIGS. 16-29 are also contemplated for use in the instant embodiments and modifications thereto. The instant described attachment features are similarly susceptible for use with the later described embodiments discussed below.

The position of the substantially moisture-impervious, oxygen-impervious seal28 inside of thecontainer10 is a matter of choice. In one embodiment, the substantially moisture-impervious, oxygen-impervious seal28 can be applied directly to the sealing flange orrim88, which is an attach surface running around the periphery of the tub-shapedreceptacle80 by means of an adhesive, typically a heat-sealable adhesive. SeeFIGS. 14,20,23, and26. In another embodiment, theseal28 can be applied to the

interior walls

16a,18a,20a, and22aof thefront wall16, therear wall18, thefirst side wall20, and thesecond side wall22, respectively, of thecontainer10 at a position lower than therim88 running around the periphery of the tub-shapedreceptacle80 of thecontainer10, such as, for example, at a point approximately midway or lower on thegroove90 that runs around the periphery of the tub-shapedreceptacle80. This embodiment (not shown) may call for custom attaching equipment, but may be desirable because movement of granular product into cracks and fissures between the tub-shapedreceptacle80 and thecollar84 can be further reduced.

The use of a living hinge or a mechanical hinge for pivotally and/or hingedly joining the lid “L” to thecollar84 is also a matter of choice. Referring now toFIGS. 2 and 3, in one embodiment employing a mechanical hinge100 (seeFIG. 3 and alsoFIGS. 16-19,24, and29-31), pins can be molded intoprojections102a,102b, respectively, rising upwardly from the upperrear edge104 of thecollar84. Theseprojections102a,102bcan be molded so as to be flush with the exterior surface of thecollar84.FIG. 3 shows theprojection102ain greater detail. Theprojection102ahas apin106aformed thereon by molding. The projection102balso has a pin formed thereon by molding.

While the pin on the projection102bis not shown, it is the mirror image of thepin106a. Sockets can be formed in the lid “L” to receive and retain the pins of theprojections102a,102b.FIG. 3 shows the socket108afor receiving thepin106a. While the socket for receiving the pin of the projection102bis not shown, it is the mirror image of the socket108a. The lid “L” can be molded in such a manner that the sockets are not visible from the exterior of thecontainer10. In addition, the lid “L” can be molded in such a manner that recesses110a,110bare provided therein so that the pin-bearingprojections102a,102bcan be flush with the exterior surface of the lid “L”.

In addition, the shape of therear edge112 of the lid “L” and the shape of the upperrear edge104 of thecollar84 can be designed in such a manner that when the lid “L” is fully opened, the lid “L” will be supported by the upperrear edge104 of thecollar84 at a specified angle, such as, for example, 120°, so that the user can obtain access to the contents of thecontainer10 without being restricted by the presence of the lid “L”. In the particular embodiment shown inFIG. 2, two projections, each projection bearing a pin, and two sockets can be used.

Any and all of the preceding preferred embodiments and the modifications and variations thereof may be incorporated in whole or in part to many additionally contemplated configurations of thecontainer10. Similarly, the many next to be discussed adaptations, variations, and modifications, are contemplated for use with all of the preceding embodiments, alone, in part, and in combination. With continued reference toFIGS. 1-15, and referring now also toFIGS. 16 through 22, another configuration of a sealing container according to the invention is shown and identified generally byreference numeral210, which is also susceptible for use and to incorporate any or all of the previously described features, components, and modifications and variations of the invention.

As with other embodiments, the sealingcontainer210 includes atop wall212, abottom wall214, afront wall216, arear wall218, afirst side wall220, and asecond side wall222, which together define an interior space “I”. Similar to other embodiments of the invention, the walls are defined with interior and exterior surfaces and upper and lower portions. Thefront wall216 includes aninterior surface216a, anexterior surface216b, anupper portion216d, and alower portion216e. Therear wall218 has aninterior surface218a, an exterior surface218b, anupper portion218d, and alower portion218e. Thefirst side wall220 defines aninterior surface220a, an exterior surface220b, anupper portion220d, and alower portion220e. Thesecond side wall222 includes an interior surface222a, anexterior surface222b, anupper portion222d, and alower portion222e.

With reference now also toFIGS. 29-31 and34-36, it may be understood that a lid of thecontainer210 may be a separate component, part of an assembly, and may also include and be formed as a part of thetop wall212 and theupper portion216dof thefront wall216, theupper portion218dof therear wall218, theupper portion220dof thefirst side wall220, and theupper portion222dof thesecond side wall222.

An alternative configuration of the lid depicted here is referred to generally by reference character “D”. The “domed” lid “D” has an interior surface, which will hereinafter be referred to by the reference character “D_i” (FIGS. 30-31). The lid also has an exterior surface, which will hereinafter be designated by the reference character “D_e”. The lid “D” may also be shaped to cooperate with the features of thebottom wall214 to enable stacking of thecontainers210 as described in earlier descriptions of the embodiments of the invention. As contemplated for use with this and the other previously and later described embodiments of the invention, the lid “D” is shown as a separate component that is hingedly, rotatably, and/or pivotally connect to the containers of the invention. Even more preferably, the lid “D” may be connected to the later described collar for incorporation into the variations of the embodiments of the invention.

Analternative hinge224 may attach the lid “D” to theupper portion218dof therear wall218. While any of the previously described hinges may be incorporated in the embodiment contemplated by sealingcontainer210, the modifiedmechanical hinge224 as shown in the various figures may be incorporated to replace or work in combination with any of the preceding hinges.

The modified variations of the sealingcontainer210 may also incorporate gripping features such as those previously described and as shown inFIGS. 16-19 and21, wherein thefront wall216 has a recess226aarranged to enable grasping or gripping of thecontainer210 by a left thumb of the user. Therear wall218 also has a recess226bpositioned to facilitate gripping of thecontainer210 by the fingers of the left hand of the user. The recess226acan further have an additional recess227ato indicate the precise location in therecess26afor the placement of the thumb of the user. The recess227ais smaller in area than the recess226a. The recess227ais preferably circular in shape, but other shapes are also acceptable. The recess226bcan further have an additional recess227bto indicate the precise location in the recess226bfor the placement of the desired finger of the user. The recess227bis smaller in area than the recess226b. The recess227bis preferably circular in shape, but other shapes are also acceptable. InFIGS. 16-19, the recesses226aand226bare positioned adjacent to thefirst side wall220 of thecontainer210. However, variations (not shown) will incorporate the recesses to be complemented by additional and/or replacement recesses proximate the oppositesecond side222.

With reference now also toFIGS. 13,20-21,23, and26, the substantially moisture-impervious, oxygen-impervious seal28 having apull tab28ais affixed to a position proximate to edges of the

upper portions

216d,218d,220d,222dof the

walls

216,218,220,222 as explained in connection with previously described variations of the preferred embodiments of the invention.

Referring now toFIGS. 30-33, attached to the interior surface “D_i” of the lid “D” is the previously describedscoop holder30 andscoop32. A variation to earlier embodiments of thescoop32 includes a stiffenedhandle34 having astiffener34bintegrally formed thereon. Additionally, the first bracket bowl cover30aof theholder30 may be projected outward to a predetermined maximum dimension wherebymultiple scoops32 having different volumes ofbowl36 can be incorporated to maximize convenience when dispensing different volumes of the contents of the

containers

10,210.

In another preferred or optional variation to any of the preceding embodiments, and with reference toFIGS. 16-19,20-22, and26, thecontainer210 may be formed from a tub-shapedreceptacle280 similar in construction to earlier described embodiments but may also incorporate

upper portions

16d,18d,20d,22dof

walls

16,18,20,22 having anupper end282. Theupper end282 defines a sealingflange284 having aninternal edge286 that defines an opening to the interior space “I”.

In further preferred arrangements, theimpervious seal28 is seated around theupper end282 to close and seal the opening and is removably affixed to the sealingflange284. To improve accuracy and convenience during assembly and placement of theimpervious seal28 on the sealingflange284, an optional snap bead288 (FIGS. 23 & 26) may be formed on theupper end282 below the sealing flange. Such asnap bead288 can be used as a shelf and/or seat that contacts the edges of the unattached impervious seal around the periphery of the container to keep theimpervious seal28 in place and centered so that it can be attached with adhesive, heat sealing, or another means.

In the past, many containers were improperly sealed due to incorrect placement of the seal before an adhesion step glues, melts, or otherwise affixes theimpervious seal28 to the sealingflange284. Additional variations of any of the embodiments of the invention may also include assembly improving features such as one or more engagement recesses orindentations290 defined laterally separated by strengtheningbridges292, alower seat rib294, and an upper lug ledge or downwardly facingtop surface296. The spaced apart bridge292 arrangement imparts improved strength and rigidity capabilities to theupper end282 of thereceptacle280, which, in turn, improves the crippling strength of the container and the rigidity of theupper end282 when thecollar300 is fitted together with thereceptacle280.

Further preferred or optional variations to any of the preceding embodiments may include a modifiedcollar300 that can be best illustrated with specific reference toFIGS. 16-21,24, -28. Thecollar300 may be formed with a substantially J-shaped and/or U-shaped cross-sectional configuration. With reference toFIGS. 25 and 26, it can be seen that theexemplary collar300 has an upside-down U-shape and/or J-shape, depending on the location of the section; U-shaped if sectioned through a flex clip310 (described below) as inFIG. 26, but U-shaped if sectioned elsewhere, as inFIG. 25.

Thecollar300 includes an exteriorly or outwardly facinglong wall302 that extends upward to join a substantially roundedportion304 that may have an increased thickness if needed for stiffening thecollar300. The small relative radius of the J-shaped section shown in the illustrations enables excellent stress distribution and force load path communication by way of a higher cross-sectional moment of inertia, which results in a stiffened and stronger collar. Thelong wall302 also forms a part of the

upper portions

216d,218d,220d,222dof the

walls

216,218,220,222.

Therounded portion304 extends further and downwardly to form an interiorly or inwardly facingshort wall306. More preferably, therounded portion304 will be formed to have alip seat305 that enables alignment and improved engagement of theoutermost edge348 of lid “D” when it is closed onto thecollar300. See, for example,FIGS. 25-26.

The collar may also preferably incorporate engagement lugs or flexclips310 that are laterally spaced apart to correspond to the lateral spacing of theindentations290. The flex clips310 will incorporate an upwardly facing surface and/or aretainer face312 and may also optionally include astiffening rib314. During assembly, thecollar300 will be centered and secured to thereceptacle280 by the flex clips310 engaging a downward facing surface of the groove or plurality ofindentations290; and thus arranged to fit on, overcap, and/or be installed upon theupper end282 of the tub-shapedreceptacle280 so that the flex clips310 will bend outwardly slightly as thecollar300 descends over theupper end282.

Once the flex clips310 are moved into a juxtaposition relationship with theindentations290, the flex clips310 return to the nominal orientation and snap into position so that the retainer faces312 contact the downwardly facingtop surfaces296 to interlock thecollar300 onto thereceptacle280. In this way, thecollar300 is aligned and captured and in a friction-fit andflex clip310 engaged relationship with the tub-shapedreceptacle280. A bottom end303 (FIG. 26) of the outwardly facinglong wall302 will generally come into contact with and rest against thelower seat rib294 of thereceptacle280, which in combination with the other features of the invention enables increased strength and rigidity.

The laterally spaced apartindentations290 andbridges292 establish a well-distributed load interface between thecollar300 and thereceptacle280 having good rigidity properties when subjected to nominal applications. Additionally, the laterally spaced apart bridges292 have been found to greatly improve the crippling strength of the assembledcollar310 andreceptacle280 combination. These features combine with the aligning, capturing and retaining capability of the flex clips310 to hold thecollar300 to the upper portion orupper end282 of thecontainer210 and thereby laterally stabilize thecollar300 so that thecollar300 remains in a substantially fixed position relative to the container opening.

In additionally preferred and optional modifications to any of the embodiments of the invention, the plurality ofindentations292 and the plurality of spaced apart flexclips310 are further positioned to be oppositely paired across thereceptacle280 to establish force load coupling between the pairs to increase rigidity and structural stability of the

sealable containers

10,210 when thecollar300 is fitted onto the upper end orportion282. This opposite or confronted pairing establishes a series of coupled moment arm vectors having a distance equal to the diameter, width, and/or depth dimension of the container, which greatly improves load distribution across the

container

10,210 and increase the structural stability thereof.

Furthermore, it has been found that these novel features have resulted in an unexpected configuration that overcomes otherwise unacceptable tolerance anomalies and part mismatch between thecollar300 and the upper portion orupper end282 of thereceptacle280, which greatly reduces rejected parts and which significantly lowers manufacturing costs. More specifically, it is optionally preferred to utilize upwardly facing surfaces or retainer lugs312 that are dimensionally smaller (in at least a width or lateral dimension) than the downwardly facing surfaces orupper lug ledges296 of thereceptacle280.

In one aspect, this dimensional arrangement can enable the retainer lugs or upwardly facingsurfaces312 to move within the engagement recesses orindentations290 and about the upper lug ledges or downwardly facing surfaces296. This can enable the combination of these components to absorb dimensional tolerance errors and enable the collar to fit around the upper portion of the container. Even more preferably, at least one of thecollar300 and the upper end or portion of thewalls282 are formed from a substantially flexible material such as a polymeric material like polyethylene or polypropylene to enable at least one of the collar and the upper portion of the walls to flex.

Flexibility enables absorption of dimensional tolerance errors, which enables the collar to fit around the upper portion of the container. Also, this can enable at least one of thecollar300 and the upper portion or end282 of the walls to flex to accommodate shape mismatch between at least one of the collar and the upper portion of the walls to enable the collar to fit around the upper portion of the walls.

When assembled, thecollar310 and theupper end282 of thereceptacle280 form a subcollar space320 (FIG. 26). In other optionally preferred arrangements of thecollar300, a raisedseat325 may be formed on the inwardly facingshort wall306 to establish a greater thickness of theshort wall306 for applications where other elements may be attached to the short wall. In one particularly preferred optional embodiment, a flexible, polymeric gasket or seal330 may be affixed to theshort wall306, and more preferably may be attached to the raisedseat325. Even more preferably, theflexible gasket330 may be either affixed by adhesive to theshort wall306 and/or the raisedstep325, or may be directly injection molded onto theshort wall306 and/or the raisedstep325.

In this particular example, the raisedseat325 may be also thermoformed as thecollar310 is formed or molded, or the raisedseat325 may be formed in a second and/or separate thermoforming step that may occur before thegasket330 is attached. Additionally, the raisedseat325 may be formed in the step at the same time or nearly the same time the gasket335 is attached. The flexible gasket preferably extends inwardly and interiorly with aninternal edge332.

Preferably, the flexible gasket is dimensioned to project inwardly or interiorly and to removably rest against the sealingflange284 as depicted inFIGS. 20,25 and26. More preferably, theflexible gasket330 projects slightly downwardly to be biased against the sealingflange284 for an improved sealing configuration. Even more preferably, theflexible gasket330 extends interiorly or inwardly to project theinternal edge332 beyond theinternal edge286 of the sealingflange284. With this arrangement, thesubcollar space320 is sealed from the interior space “I” to prevent contents of the interior space “I” from entering thesubcollar space320. If such is not prevented, an inconvenience is presented wherein contents that have spilled into thesubcollar space320 may further spill outside thecontainer210 by moving through any interstice that may exist between the lower end of the outwardly facinglong wall302 and the lower seat rib294 (FIG. 26).

With specific reference toFIGS. 20,23, and26, those skilled in the art may comprehend that theimpervious seal28 is removably sandwiched between thegasket330 and the sealing flange284 (and beneath the gasket330). Upon initial use, whenpull tab28ais grasped and theimpervious seal28 is removed to expose the contents of thecontainer210, theflexible gasket330 flexes away from its rest position against the sealingflange284 to enable removal of theimpervious seal28. As theimpervious seal28 is removed, theflexible gasket330 returns to its rest position against the sealingflange284. This configuration permits a more robust hermetic,impervious seal28 for distribution to the end user, who removes theseal28 upon first use, yet still enjoys the benefits of the sealing wall andgasket330 to prevent or minimize content leakage out of the interior space, I.

Many possible types of material are suitable for use in fabricating thegasket330. One illustrative example of a suitable material includes a thin polymeric material such as a thermo-plastic elastomer having a durometer strength of approximately 50 or other similar Shore A grade material so that theimpervious seal28 may be easily removed while the flexible gasket is still able to retain some shape memory so that it returns to a biased, sealing rest position against the sealingflange284. For optionally preferred applications, Shore A grade material such as a Santoprene and similar compounds have been found to be satisfactory and can be readily thermoformed or injection molded directly onto the inwardly facingshort wall306 and/or the raisedseat325.

In other equally preferred and optional variations to any of the embodiments of the invention, thegasket330 may be integrally formed as part of thecollar300 wherein thegasket330 is a flap of flexible and thin material that is molded from and that extends from the interior surface of thecollar300. In this contemplated modification to any of the embodiments, among other options, the raisedseat325 can be formed to project inwardly as does thegasket330.

Other modifications to the preferred embodiments of the

containers

10,210 may incorporate a modified removable lid such as domed lid “D” shown inFIGS. 30 through 36. The new variation contemplated by removable lid “D” preferably defines the interior surface “D_i” to be sized to cover and seal the opening to the interior space “I” when the lid “D” is closed. The lid “D” incorporates a sealingwall340 depending from its interior surface “D_i” and that projects toward the sealingflange284 and which is centered and aligned by including optionally preferred alignment and/or wall ribs341 (FIG. 30-31).

With this configuration, when the lid “D” is closed on thecollar300 to seal thecontainer210, thegasket330, the sealingwall340, and the sealingflange284 are dimensioned and positioned so that the sealingwall340 depresses and biases theflexible gasket330 against theinternal edge286 of the sealingflange284 to seal thesubcollar space320 from the container interior “I”. The flexibility and shape memory and strength of theflexible gasket330 must also withstand repeated opening and closing of the lid “D” and biasing and unbiasing of thegasket330 by the moving sealingwall340, so that the flexible gasket remains biased and at rest against the sealing flange384. These optionally preferred variations of the position of the sealingwall340 are contemplated as shown with the solid and dashed line representations of sealingwall340 shown inFIG. 26.

In any of the possibly preferred positions of sealingwall340, the length and/or location of the downwardly projectinglower edge342 is adjustable as preferred so that thelower edge342 can, when lid “L” or “D” is in the closed position, terminate just above, bias against, and/or bias against and depressgasket300 downward so thatgasket330 is in turn biased against sealingflange284. In further alternative variations to the preceding embodiments, theflexible gasket330 may be attached to the sealingwall340 instead of the raisedseat325. In further variations, a second gasket (not shown) may be attached to the sealingwall340 either alone and/or in addition to and to cooperate with theflexible gasket330 that is attached to the raisedseat325.

In still other modifications to any of the variations of the preferred embodiments, the sealingwall340 may be implemented to function with or without the use of agasket330 and may include a funneledlower edge342 such as those shown inFIGS. 27 and 28. InFIG. 27, the funneledlower edge342 includes an inwardly curved and/or inwardly tapering sealingwall340a. InFIG. 28, the funneledlower edge342 incorporates an inwardly slanted and/or taperingsealing wall340b. A combination of a slanted and/or curved and tapering

wall

340aand340bis also contemplated, which can be used either alone and/or in combination with the flexible and/orintegral gasket330 illustrated elsewhere herein. Particularly in embodiments not using thegasket330, the sealingwall340 may be dimensioned so that when the lid “D” is closed, the sealingwall340 remains inward of the sealingflange284.

In further preferred variations to the preceding embodiments, the lid “D” more preferably includes a substantially domedcentral section344 that has dimensions less than the sealingwall340. The domed central section is joined to the lid either by the sealing wall, by anangled wall346, and by a combination thereof, wherein theangled wall346 tapers from the domed central section down to the interior surface “D_i” proximate to the sealing wall340 (FIGS. 34-36). As with earlier discussed embodiments and modifications thereto, the modified lid “D” is configured with an overall shape that cooperates with the shape of thebottom wall14 to enable easy stacking of thecontainers210. Proximate to the junction of the sealingwall340 and the angled taperedwall346, a collar engagement member projects generally downward to alip edge348 that seats into and engages withlip seat305 of thecollar300, so that when the lid “D” is closed, a more rigid and tightly closed assembly ofcollar300 and lid “D” is established.

In the adaptation wherein the substantially domedcentral section344 is connected only by the sealingwall340, essentially the taperedangled wall346 merges with the sealingwall340 to have an angle relative to the vertical direction of approximately 90 degrees. The taperedangled wall346 is in other variations arranged to have an angle relative to a vertical direction of between approximately 10 and approximately 75 degrees, and preferably between about 15 and 60 degrees, and more preferably between about 25 and 45 degrees, and even more preferably approximately 30 degrees. The substantially domedcentral section344 extending to the sealing wall preferably is dimensioned to define an area between approximately 20 percent and approximately 80 percent smaller than an entire area defined by the removable lid. Further, the substantially domedcentral section344 projects upwardly with a height dimension that is between approximately 10 percent and approximately 60 percent of a cumulative lid height dimension; ideally to house the scoop above theimpervious seal28.

These variations of the substantially domed lid have been found to be of significance when thesealable container210 is in use with powdered contents contained therein. When thecontainer210 is jostled about and inverted during transit, such as when being transported in the diaper bag of a parent or when being shipped from a warehouse to a retail location while being upside-down and inverted, the powdered contents may collect and become packed into a small mountain resting against portions of the interior surface “D_i” of the lid “D”. When such a disoriented container is righted, theangled wall346 and the sealingwall340 cooperate to more readily and effectively disengage the collected and/or packed contents from the interior surface “D_i” of the lid “D” so that the packed or collected contents fall freely down into the interior space “I” of thecontainer210.

Many factors can contribute to creating an inconvenient accumulation of powder packed into the lid “L” or “D”. Those skilled in the relevant arts often characterize the flowability of a powdered material to be a function of many variables that include particle size and distribution, cohesivity, static charge, surface coating, ability to recover from packing or compaction, temperature, humidity, aeration, transportation experience, and container surface effects. Even with so many powder flowability characteristics confronting the manufacturer and the user of container according to the principles of the invention, it has been found that the new and novel angled and/or taperedwall346 of the invention, alone and in combination with the other powder control features described herein, have established a new and previously unseen means of directing powdered contents back into the interior space “H” upon righting of the

containers

10,210.

The arrangement of theflexible gasket330 biased at rest against the sealingflange284 further cooperates to mostly if not entirely prevent the contents from entering thesubcollar space320 while directing the contents back into the interior space “I”. Additionally, the arrangement of theflexible gasket330 and itsinternal edge332 extending inwardly beyond theinternal edge286 of the sealingflange284 also serves to better direct the contents away from thesubcollar space320 and into the interior space “I”. Also, the powder directing capabilities can be further implemented with any combination of the flexible andintegral gaskets330, whether used alone and/or in combination with the straight, funneled, curved, and slanted sealingwall340 variations described above.

In any of the embodiments of the invention where a powder control feature is implemented as described here, significant advantages are achieved by ensuring that powdered and granular contents are dropped into the interior space “H” and away from the interior surfaces “L_i” and “D_i” of lids “L” and “D”, and are prevented from entering thesubcollar space320

As previously described in connection with earlier embodiment and variations thereof, a living hinge or a mechanical hinge can be used to hingedly and/or pivotally attach the lid “D” to thecollar300. Referring toFIGS. 17,18,20 and30, among others, it can be seen that the mechanical hinge adaptation can include thehinge224 having a hinge separation or wheel base that is farther apart than earlier described embodiments, which can improve the strength thereof. Another possibly preferred mechanical hinge can include a pinned hinge having cooperative detentes and engagement ridges that enable a frictional ratcheting of the lid “D” between the open and closed positions, which prevents the lid “D” from falling closed while contents are being removed from theinterior space320.

In another contemplated variation of the preferred embodiments of the invention, thereceptacle280 of thecontainer210 is further modified to incorporate a means to compensate for changing external pressures due to altitude changes of the sealedcontainer210. Ordinarily, thecontainer210 is sealed withimpervious seal28 whereby the pressure in the interior space “I” remains unchanged. However, distribution ofcontainer210 after filling with salable contents creates the probability that the filledcontainers210 will experience widely varying pressure changes. Such changes may lead to breach or rupture of theimpervious seal28. A stronger, pressureresistant seal28 may be undesirable because the user may not have enough strength to open theimpervious seal28.

Accordingly, as can be seen with reference toFIGS. 17-18, and37-39, thebottom surface214aof thebottom wall214 of thereceptacle280 may incorporate a pressure control portion formed from a stepped or central raised stepped orstiffener portion350 formed with an outerplanar portion352 adapted to enable thecontainer210 to rest in a level position on a flat surface such as a table or counter-top.

The pressure control portion is also referred to as the central raisedstiffener portion350. Contrary to the plain meaning of the word “stiffener”, this phrase refers to features that may be incorporated and which include, for purposes of example without limitation, a flexible and/or collapsible pressure relief section.

Extending towards the interior space “I”, the central raised stepped orstiffener portion350 includes a plurality ofsteps354 havingriser portions356 and treadportions358. Theriser portions356 preferably project in a direction substantially upward relative to the outerplanar portion352 with thetread portions358 being approximately parallel to the outerplanar portion352.

More preferably, thesteps354 that are formed from the riser and tread

portions

356,358 can form 3, 4, 5 or more or less steps that together can enable an incremental reduction in pressure by the incremental collapse of one or all of the steps so that pressure in the interior space “I” may be lowered to compensate for unequal pressure and to lessen any pressure between the interior space “I” and the external atmosphere. In this way, when a container such as

containers

10,210 are filled with contents at a sea level factory, and the containers are shipped via aircraft or over high-altitude land routes, theimpervious seal28 of the

containers

10,210 may remain intact despite varying external pressures. Alternatively, thesteps354 may be adapted to have a thickness and or a bellows and or an accordion cross-sectional structure similar to that shown inFIGS. 17-18 andFIGS. 37,38a-b, and39a-b, and that establishes a material strength that prevents collapse and that resists deformation of thebottom wall214 when exposed to such pressure differentials. Even more preferably, thesteps354 include a combination of steps that resist collapse and or deformation when exposed to a pressure differential as well as steps that are formed with a reduced cross-sectional thickness (FIGS. 38a-b) or with a type of flexible bellows or accordion or pleated section (FIGS. 39a-b) that exaggerates the undulations of or that is combined with the steps as shown inFIGS. 17-18, and37,38a-band39a-b. Although shown inFIGS. 39a-bto have a generally undulating bellows type of profile, and more triangular or pleated undulation arrangement may also be optionally incorporated.

Most preferably, the undulating bellows arrangement (FIGS. 39a-b) may retain the stackable capability by preserving the cooperative shapes between the lids “D” or “L” and the recess defined by thebottom wall14. This flexible and/or bellows adaptation of thesteps354 preferably retains the stackability clearance and spacing of earlier configurations by generally following the curvature of inclination line360 (FIGS. 39a-b), which extends inwardly towards the interior space “I” or “H” so that any flexure or collapse of a portion of thesteps354 relieves some or all of the pressure differential without detriment to stackability. These stepped arrangements may be used alone or in combination with one or more of the arrangements ofFIGS. 17-18 as well as the more flexible reduced thickness variation ofFIGS. 38a-b. With any of these alternative configurations, thesteps354 may be optionally or preferably adapted to collapse and or flex in response to the contemplated pressure differential in a way that accommodates and/or reduces any stress on the

containers

10,210 due to pressure changes.

With the multiple stepped arrangement illustrated here, the collapse of one ormore steps354 will preferably not result in the central steppedportion350 distending beyond the generally level outerplanar portion352. Such pressure differentials may be experienced even without altitude changes. For example, and as discussed elsewhere herein, the containers of the invention may be subjected to external crushing pressures during shipment with a commercial carrier as well as during movement by a parent carrying the inventive container in a diaper bag.

The materials of the components of the

containers

10 and210 are not critical. However, certain materials for the components of the container are preferred on account of, for example, such considerations as manufacturing considerations, economic considerations, and consumer considerations. The tub-shaped receptacle typically comprises a multiple-layer material, wherein the multiple-layer material comprises an inner layer, an outer layer and a regrind layer between the inner layer and the outer layer.

Such a multiple-layer material is described in U.S. Patent Application Publication No. 2004/0161558, published Aug. 19, 2004, incorporated herein by reference. The assembly comprising thecollar84 and the lid “L” typically comprises a polymeric material, such as, for example, polypropylene, high-density polyethylene. The scoop typically comprises a polymeric material, such as, for example, polypropylene, high-density polyethylene.

Operation

In use, the

container

10 or210 is grasped with a single hand using the enhanced

gripping recesses

26a,26b,27a,27b,226a,226b,227a,227b. The

containers

10,210 are then opened by actuation of thelatch54 and, if necessary for a new container, theimpervious seal28 is removed by grasping thepull tab28aand pulling theseal28 away from the sealingflange284. Next, the user uses his or her free hand to retrieve thescoop32 from the lid “L” or “D” of the

containers

10,210 to scoop and dispense the contents. The user avoids the inconvenience of powder spilling from thescoop32 because thebowl36 was covered bybracket30a. Furthermore, any powdered contents that may have come to rest in the lid “L” or “D” prior to opening, was directed away from thesubcollar space320 and into the interior space “H” where it remains ready for dispensing. Thecontainer10 and thescoop32 together cooperate as a system that enables the user to conveniently use thescoop32 to remove a predetermined volume or portion of the contents of the container.

After thescoop32 has been used, thescoop32 can be reattached to thescoop holder30 on the lid “L” for all subsequent times the scoop is to be used. The lid is then closed, securing the powder therein. Accordingly, the granular or powdered product will not be spilled, wasted, or contaminated by contact with the hand of the user.

INDUSTRIAL APPLICABILITY

The embodiments of the present invention are suitable for use in many applications that involve manufacture, distribution, storage, sale, and use of flowable substances such as powders and granular materials. The configurations of the inventive container can be modified to accommodate nearly any conceivable type of such materials, and the shape, size, and arrangement of the features and components of the novel container can be modified according to the principles of the invention as may be required to suit a particular type or quantity of flowable material, as well as a preferred mode of use, storage, manufacture, distribution, and/or sales environment.

Such modifications and alternative arrangements may be further preferred and/or optionally desired to establish compatibility with the wide variety of possible applications that are susceptible for use with the inventive and improved containers for containing flowable materials are described and contemplated herein. Accordingly, even though only few such embodiments, alternatives, variations, and modifications of the present invention are described and illustrated, it is to be understood that the practice of such additional modifications and variations and the equivalents thereof, are within the spirit and scope of the invention as defined in the claims.