US20150114980A1 - Lid structure for cooler - Google Patents

Abstract

A portable cooler includes a cooler body formed of an insulating shell defining an interior storage section, a lid mating surface formed at a first angle relative to a bottom surface of the cooler body, and a cooler lid coupled to the cooler body by a hinge. The cooler lid includes a body mating surface formed at a second angle that is a supplementary angle to the first angle so that a first surface of the cooler lid extends generally horizontally from the cooler body when the lid is fully opened. Some embodiments may include two lids, each of which opening in opposite direction. An internal reinforcement within the a cooler body allows the cooler to resist deflection in the lid contact region when the lid is opened and in contact with the cooler body.

Description

CROSS REFERENCE TO RELATED APPLICATIONS
• This application claims benefit from and is a non-provisional of U.S. Provisional Application 61/898,344, filed Oct. 31, 2013, entitled ICE CHEST WITH INTEGRATED BLENDER, the contents of which are incorporated by reference herein.
• This application is related to U.S. patent application Ser. No. ______, titled “COOLER HAVING INTEGRATED BLENDER AND ACCESSORIES” (Atty. Docket No. 2918-0005) and filed on Oct. 31, 2014, and to U.S. patent application Ser. No. ______, titled “DRAG MINIMIZING COOLER” (Atty. Docket No. 2918-0022) and filed on Oct. 31, 2014, and to U.S. patent application Ser. No. ______, titled “COOLER HAVING INTEGRATED ACCESSORY STORAGE” (Atty. Docket No. 2918-0024) and filed on Oct. 31, 2014, and to U.S. patent application Ser. No. ______, titled “IMPROVED COOLER DRAIN” (Atty. Docket No. 2918-0025) and filed on Oct. 31, 2014, and to U.S. patent application Ser. No. ______, titled “COOLER WITH INTEGRATED PLATE STORAGE” (Atty. Docket No. 2918-0026) and filed on Oct. 31, 2014, and to U.S. patent application Ser. No. ______, titled “COOLER HAVING BATTERY CHARGING SYSTEM” (Atty. Docket No. 2918-0027) and filed on Oct. 31, 2014, all of which are commonly assigned with this application and are hereby fully incorporated by reference herein.
FIELD OF THE INVENTION
• This disclosure is directed to a cooler with an integrated blender and more specifically relates to a cooler or ice chest with an integrated blender and other accessories to create a unified product.
BACKGROUND
• Present coolers or ice chests come in a variety of shapes and sizes. Coolers, generally, are formed with an insulated shell around a hollow cavity or storage section to store items desired to be kept cool. Items to be kept cool are placed along with a cold source, typically ice or cold packs, within the storage section. Coolers are generally portable and include handles for lifting. Some coolers include integrated wheels to facilitate transport.
• A problem exists in that, once loaded, present coolers are very hard to move. Coolers without wheels must be carried, and items stored within the storage section add to the weight of the cooler itself to become a large, heavy, bulky apparatus. For many outings, a cooler is only one part of the gear carried to the destination. For some destinations the cooler may simply be placed in a car or truck and driven to the destination. Some destinations, however, like a beach, park, remote campsite or boat, do not typically provide an easy way to transport a cooler in a vehicle to the final destination, so the cooler must be carried or dragged. Coolers with wheels often suffer from poor design, construction, or material choice and are a constant source of frustration. Wheels that may properly operate on the flat, level floor of a store tend to sink in soft ground, such as sand or a forest trail. Loading a cooler with heavy items exacerbates the problem.
• Further, a cooler may only be one of a number of items desired at the destination. Many people enjoy comforts brought from home when at a destination, such as chairs, blankets, and sporting devices such as Frisbees and paddle-balls. Transporting such items may be difficult, especially when traveling with small children who cannot carry heavy, bulky, or a multitude of items.
• Another limitation of present coolers is that they only store pre-made drinks, and therefore limit the types of drinks that may be enjoyed at the destination.
• Embodiments of the invention address these and other issues in the prior art.
SUMMARY OF THE DISCLOSURE
• Aspects of the invention are directed to a portable cooler including a cooler body formed of an insulating shell defining an interior storage section, the cooler body having a lid mating surface formed at a first angle relative to a bottom surface of the cooler body, and a cooler lid coupled to the cooler body by a hinge. The cooler lid includes a body mating surface formed at a second angle that is a supplementary angle to the first angle so that a first surface of the cooler lid extends generally horizontally from the cooler body when the lid is fully opened. Some embodiments may include two lids, each of which opening in opposite direction.
• Aspects also include an internal reinforcement formed within a cooler body, only in the lid contact region, to cause the cooler body to resist deflection in the lid contact region when the lid is opened and in contact with the cooler body. The internal reinforcement may include a high density plastic that includes both vertical and horizontal components. The internal reinforcement may also be surrounded by insulating foam and be structured to mechanically lock with the foam.
BRIEF DESCRIPTION OF THE DRAWINGS
• FIGS. 1A and 1B are front and perspective views, respectively, of a cooler including an integrated blender and other accessories according to embodiments of the invention.
• FIGS. 2A and 2B are front and perspective views, respectively, of the cooler ofFIGS. 1A and 1B illustrating the integrated blender mounted thereon.
• FIGS. 3A, and3B are front views illustrating operation of lids of the cooler illustrated inFIGS. 1A and 1B.
• FIG. 3C is a perspective view illustrating operation of lids of the cooler illustrated inFIGS. 1A and 1B.
• FIGS. 4A and 4B are front and perspective views illustrating additional detail of the lids of the cooler illustrated inFIGS. 1A and 1B.
• FIG. 5 is a perspective view of a top lid for use with the cooler illustrated inFIGS. 1A and 1B.
• FIGS. 6A and 6B are perspective views of a top surface and bottom surface, respectively, of the second lid of the cooler illustrated inFIGS. 1A and 1B.
• FIG. 6C is an end view of the second lid of the cooler illustrated inFIGS. 1A and 1B including additional features according to embodiments of the invention.
• FIGS. 7A,7B, and7C are cross-sectional views of the second lid of the cooler illustrated inFIGS. 1A and 1B illustrating various internal components and controls.
• FIGS. 8A and 8B are a top view and perspective view illustrating an interior space of the cooler illustrated inFIGS. 1A and 1B according to embodiments of the invention.
• FIG. 8C is a perspective view of the interior space illustrated inFIGS. 8A and 8B further including illustration of an integrated cutting board according to embodiments of the invention.
• FIG. 8D is a perspective view of the interior space illustrated inFIGS. 8A and 8B showing additional detail according to embodiments of the invention.
• FIGS. 9A,9B, and9C are perspective views of an accessory storage unit built in or attached to the cooler illustrated inFIGS. 1A and 1B.
• FIGS. 10A,10B, and10C are perspective views illustrating ahandle600 integrated into the cooler illustrated inFIGS. 1A and 1B according to embodiments of the invention.
• FIGS. 11A and 11B are perspective diagrams illustrating an external shape of a rear portion of the cooler illustrated inFIGS. 1A and 1B according to embodiments of the invention, andFIG. 11C is a side view diagram illustrating the same.
• FIGS. 12A and 12B are rear views of the cooler100 illustrated inFIGS. 1A and 1B according to embodiments of the invention.
• FIGS. 13A and 13B illustrate additional features of the wheels that may be attached to the cooler ofFIGS. 1A and 1B.
• FIG. 14 is a side view of an example blender for use with the cooler100 illustrated inFIGS. 1A and 1B according to embodiments of the invention.
DETAILED DESCRIPTION
• Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views,FIG. 1A is a front view of a cooler100 according to embodiments of the invention.FIG. 1B is a perspective view of the cooler100. In general, in this embodiment, the cooler100 includes acooler body110, one ormore wheels120, a first andsecond lid130,140, anaccessory housing unit150, and ahandle160. Each of these items is described in detail below.
• The cooler100 is an insulated storage area in which food or beverage items may be stored and transported while remaining cold. Acooler body110 is preferably generally rectangular in shape, although the cooler body may also be square, polyangular, circular, or ovaloid depending on the implementation. Thecooler body110 is preferably made of a durable plastic, such as High-Density Polyethylene, PolyPropylene, Acrylonitrile Butadiene Styrene (ABS) plastic or other plastic material, and includes an outer shell and inner shell. The inner shell is formed from food-grad plastic. Insulation material such as polyurethane or polystyrene foam fills a void formed between the inner and outer shells, as described in more detail below. In some embodiments the outer shell may be formed of a pliable material, such as nylon fabric. In yet other exemplary embodiments, the exterior shell can include a combination of hard material, such as plastic, and a pliable material, such as nylon fabric. Although described herein as being preferably made of plastic, some embodiments may use metal or other materials for thecooler body110.
• In some embodiments the outer shell of thecooler body110 may be blow molded, but may also be injection molded, thermoformed, roto-molded, or formed using other commercially known methods. In some embodiments the cooler100 is generally rectangular, with a width that is between 10 and 40 inches wide, a depth between 10 and 20 inches, and a height between 5 and 30. Other embodiments may include different dimensions. In one embodiment the outer shell of thecooler body110 is 0.008 inches thick. The outer shell of thecooler body110 may be colored, and may include UV inhibitors integrated within the plastic or applied to the surface to maintain the color.
• FIGS. 2A and 2B illustrate the cooler100 ofFIGS. 1A and 1B having ablender170 mounted thereon. As described in more detail below, in some embodiments theblender170 is matingly received by a blender recess142 (FIG. 1B) formed within thesecond lid140. Although preferably a base of the jar of theblender170 and theblender recess142 are formed to engage or mate with one another to hold theblender170 in a fixed relationship, other methods of securing the blender to the cooler100 are possible. In some embodiments therecess142 is a negative impression of the geometry of the bottom of the jar of theblender170 so that when the blender jar is inserted into the blender recess, the shapes interfere with one another to prevent rotation of the blender jar. Integration of theblender170 with the cooler100 is described below.
• FIGS. 3A,3B, and3C illustrate operation of the first andsecond lids130,140 of the cooler100. Either or both of thelids130,140 may attach to the cooler100 through a hinge. For example, thefirst lid130 may be attached to the cooler100 by ahinge134, and thesecond lid140 may be attached to the cooler100 by ahinge144. Either or both of thehinges134 may be formed of metal or plastic, for example. Preferably thehinges134,144 are durable and piano-style hinges formed of stainless steel. The hinges134,144 are preferably screwed to thecooler body110, but may be mounted using other means, such as glues or other adhesives, either solely or in combination with other mounting methods, such as screws, rivets, etc. The hinges may be partially or fully covered in plastic or other material to prevent interference with sharp edges of the hinge. In one embodiment plastic bumpers are mounted to the lid or cooler body to cover the ends or edges of the hinges. The hinges134,144 allow rotational or pivoting movement of theirrespective lids130,140 to allow access to the interior portion of the cooler body. In other embodiments, the lid or lids are not permanently affixed to thecooler body110, but instead, can be slidably removed and applied onto or into the cooler body. In this embodiment, the lid typically has an interference or snap-in fit with the cooler body.
• In other embodiments the lid orlids130,140 may not be physically attached to thecooler body110 at all, and may instead include recesses either in the lid or the cooler body to structurally receive the lid and maintain it in a relatively fixed relationship to the cooler body, but can be separated when desired. In yet other embodiments the lids are removably attached to the cooler body, and include a catch or latch attached to either the lid or to the cooler body. Operation of the catch or latch allows the lid to separate from the cooler body or be selectively secured to the body.
• Thelids130,140 can be made of a hard material, a soft material, such as nylon fabric, or a combination thereof and can have a number of shapes. For example the lids may be formed of injection molded plastic, such as ABS plastic. The lid orlids130,140 may include a rubber or foam gasket for further insulating the contents of the cooler100, or may be formed from a combination of materials. In the preferred embodiment, thefirst lid130 functions to open and close access to the contents of thecooler body110, to provide an insulated barrier to maintain a desired temperature within the cooler body, and to retain or enclose one ormore plates136 and one ormore knives134, as described in more detail below. Further, in the preferred embodiment, thesecond lid140 functions to open and close access to the contents of thecooler body110, to provide an insulated barrier to maintain a desired temperature within the cooler body, and to retain or enclose the blender elements, such as a motor, a transmission such as a gearbox or pulleys, a drive spindle, a battery and an operation switch. Other components may be stored or disposed within thesecond lid140 as well.
• FIGS. 3A,3B, and3C each show thelids130,140 as fully opened. When fully opened, thelids130,140 extend from thecooler body110 and form a horizontal surface. As illustrated inFIG. 3B, theblender170 may be stored within anotherblender recess143 on the inside surface of thesecond lid140 that is structured to accept the base of the jar of theblender170. In other words, the blender recesses142 and143 may have the same shape on opposing sides of thesecond lid140, so that the blender may be stored in a working position when thesecond lid140 is closed, and stored in a storage position when the lid is opened. In other embodiments theblender170 may be temporarily stored on the inside of thesecond lid140 in ablender recess143 that has a different shape than theblender recess142. For example, theblender recess143 may merely be circular in shape, and not formed to prevent the jar of theblender170 to rotate as would theblender recess142. In other embodiments, theblender recess143 may not be a recess at all, and may instead be a protuberance or projection sized and shaped to engage the bottom of the jar of the blender to hold the blender in place when thesecond lid140 is open.
• FIGS. 4A and 4B are front and front perspective views, respectively, showing additional detail of how thefirst lid130 may be mounted to the cooler100 ofFIG. 1A, as well as its operation, according to embodiments of the invention.
• Alid230 may be an example of thefirst lid130 illustrated inFIGS. 3A,3B, and3C. In this embodiment thelid230 is secured to abody210 of the cooler by apiano hinge234 held in place by an attachment mechanism, such as one ormore screws235. Anintegrated handle220 is also attached to thebody210 of the cooler by an attachment mechanism, such as one ormore screws230. This particular structure of theintegrated handle220 allows thebody210 to be blow molded, or otherwise produced by a mold while including an undercut,integrated handle220 for the cooler.FIG. 4B shows thelid230 in its fully opened position. Recall from above that thelid230, when fully opened, forms ahorizontal surface260 with respect to the body of the cooler. In some embodiments, amating side surface212 of thebody210 of the cooler is angled to match amating side surface232 of thelid230. For example, themating side surface232 of thelid230 may have anangle284 approximately 110° to atop surface280 of the cooler, while themating side surface212 of thebody210 has an angle of approximately 70° to thetop surface280. The actual angles chosen for implementation may vary depending on implementation details, however preferred embodiments include angles of the lid and cooler body that are supplementary angles, i.e., the angles of the adjoining sides add to 180°, so that thesurface260 of thelid230 creates a generally horizontal surface when thelid230 is fully opened. The same may be true of thesecond lid140.
• The structure of the embodiment illustrated inFIGS. 4A and 4B also allow thehinge234 to be mounted within theoutside surface210 of the cooler. In other words, if thelid230 and outsidesurface210 of the cooler had straight (i.e., 90°) sides, then, to fully open thelid230 would require thehinge234 to be mounted at the absolute outside edge of the cooler, which could expose thehinge234 to being damaged through use. Because thehinge234 is recessed from the outside edge of the cooler in embodiments of the invention, such damage is prevented in those embodiments. For those embodiments that have 90° sides, the exposed hinge may include extra protection, such as a plastic covering or a hardened surface covering the exposed hinge.
• A support structure including one or morelateral supports240 and one or morevertical supports241 is included within the body of the cooler, as illustrated inFIGS. 4A and 4B. The support structure may be formed of high density plastic or other material structured to provide mechanical support. Such supports prevent the weight of thelid230, or the weight of items stacked on thelid230 or forces otherwise applied to thelid230 from denting or crushing the sides of the cooler. In other words, the lateral andvertical supports240,241 prevent deformation of theoutside surface210 of the cooler. This is especially important when thelid230 is relatively long, which provides mechanical advantage to the crushing force. During production of the cooler, the lateral andvertical supports240,241 may additionally be surrounded by or integrated with foam insulation, which gives additional mechanical structure to the lateral andvertical supports240,241, to withstand the force of the lid as it is meets the side of the cooler while being open. The lateral andvertical supports240,241, with or without the addition of further foam insulation, also provide a surface to which the securing screws230,235 may be mounted.
• A top surface of thefirst lid130 may include recesses for holding drinks, as illustrated inFIG. 1B. Additionally, as illustrated inFIG. 5, an inside surface261of thefirst lid130,230, may accommodate one or more accessories, such as one ormore plates286 and one ormore knives296. Thesurface261 may be shaped to accommodate theplates286, such as in anindentation290. Theindentation290 is uniquely shaped having a partially circular end and an opposite open end. Theindentation290 may be for example, between approximately 0.25 and 1.25 inches deep, and preferably approximately 0.75 inches deep, and may include an inclined surface that is angled or beveled with respect to thetop surface261. The depth of theindentation290 created by the inclined surface is sized and shaped to accommodate theplates286. Although fourplates286 are illustrated inFIG. 5, the depth of theindentation290 may be more deep or more shallow to accommodate any number ofplates286. Agroove291 may be placed within theindentation290 and sized to mechanically hold edges of theplates286 in place. In other embodiments the groove may further incorporate a friction edge to increase the friction against theplates286 to hold them in place. For example the friction edge may be made of rubber or silicone. In other embodiments the friction edge or a portion of thegroove291 is removable to provide access to theplates286, and a user would remove the friction edge or top portion of the groove to remove the plates vertically, one at a time or in a group, and then re-install the friction edge or top portion of the groove after the plates have been returned to theindentation290.
• Further, theplates286 may be shaped to nest in a group, such as by including a series of projections on an individual plate that mechanically sit within one or more mating recesses of another plate. In such a way theplates286 may be removed or inserted as a group, but also could be removed or inserted individually. Additionally, theindentation290 may include a retainingmember292 to help retain theplates286 within the indentation. For example the retainingmember292 could be a molded projection within theindentation290. To remove one or any number of theplates286, the user would grab the desired number from the stack ofplates286 and pull them past the retainingmember292, which would deform slightly to allow the plates to become free. In other embodiments the retainingmember292 is a movable assembly having an attached edge and a free edge. The free edge could be urged toward the center of theindentation290 by a spring (not illustrated). Then, moving the stack ofplates286 could be extracted by pulling the plates toward the open end of theindentation290 and overcoming the spring force of the retainingmember292 to remove the plates. The same action is made when returning theplates286 to theindentation290.
• Thefirst lid130,230 may additionally include a recessedknife store298. The store may include asafety latch295 that must be slid or otherwise operated to gain access to theknife296. A pivotingsheath297 could store the sharp edge of theknife296 to cover the exposed blade and prevent accidental injuries. Further, thesheath297 could include a retaining mechanism, such as a two-sided pinch-lock (not illustrated) to retain theknife296 in place. In such an embodiment theknife296 is extracted by first sliding thesafety latch295 to gain access to the handle of theknife296. Then, the user removes theknife296 by pressing the pinch lock while simultaneously pulling the knife away from thesheath297. In other embodiments the retaining mechanism of thesheath297 could merely be a projection or indentation that matingly snaps theknife296 into place, to be stored, but allows the knife to be withdrawn and re-inserted with a sufficient amount of force.
• Referring back to, for example,FIG. 3C, recall that thefirst lid130 included storage for plates and knives, while thesecond lid140 houses the blender and other accessories, as is now described in detail.
• FIG. 6A is a perspective view of a top surface of the second lid, whileFIG. 6B is a perspective view of a bottom surface of the second lid.FIG. 6C is an end view of the second lid illustrating an integrated charging port and a battery status indicator. Alid300 illustrated inFIGS. 6A,6B and6C may be an example embodiment of thesecond lid140 illustrated inFIGS. 3A,3B, and3C. Thelid300 of the embodiment illustrated in these figures includes atop surface310, into which a blender receiver orrecess320 is formed. As described above, theblender recess320 is sized to matingly receive the jar of the integrated blender and hold it in place during operation. The blender is operated by arotating spindle322. One ormore switches330 control operation of the blender. In some embodiments, as shown below, the blender is battery powered by a battery stored within thelid300. The battery may be accessed through anaccess door350, illustrated inFIG. 6B, which illustrates the underside of thelid300. Theaccess door350 is preferably gasket sealed or otherwise water-tight.
• A light, such as an LED light360 is integrated into thelid300 and controlled by aswitch370. In some embodiments theswitch370 controls a timed circuit, so that when theswitch370 is pressed, the light360 will remain illuminated for a set period of time before turning off, such as 5 to 60 seconds, and preferably 30 seconds. In other embodiments theswitch370 may be a momentary switch, so that the light360 remains illuminated so long as theswitch370 remains actuated, such as by pressing the momentary switch. As illustrated inFIG. 3C, thelid300 is attached to the cooler body by a hinge so that the lid pivots or rotates about the hinge. Since the light360 is integrated to thelid300, rotating thelid300 also controls the direction of where the light360 is pointing. In some embodiments, it may be necessary to rotate the lid while controlling the operation of the light360 so that the light illuminates the interior of the cooler. In some embodiments only a single LED bulb is necessary to be included in the light360 for adequate illumination, especially when the inner shell of the cooler is lightly colored, such as white, grey, or beige, for example. In other embodiments the light360 may include any number of separate light sources. It is preferable that the light360 and switch370 are water resistant or waterproof.
• FIG. 6B also illustrates aninner blender recess343 formed within theunderside340 of thelid300. As described above, theinner blender recess343 is sized and shaped to retain the jar of the blender. Note the lack of a spindle in theblender recess343 compared to the presence of thespindle322 in theblender recess320 illustrated inFIG. 6A. Therefore, in the illustrated embodiment, the blender is operational only when thesecond lid300 is place in a closed position, i.e., it is covering at least a portion of the storage section of the cooler. In other embodiments, however, thespindle322 may be present within theblender recess343 of theunderside340 of thesecond lid300, and may not be present in theblender recess320 of thetop surface310 of thelid300. In such an embodiment the blender is operational only when thesecond lid300 is placed in an opened position. In yet other embodiments a spindle may be present in both of the blender recesses320 and343 on both the upper and inside surfaces of thesecond lid300. This embodiment allows the user to operate the blender regardless of the position of thesecond lid300.
• FIG. 6C is an end view of thesecond lid300. Anindicator380 displays the charged state of the internal battery. The charging state may be indicated by a number of indicator lights illuminated, for example more lights illuminated indicate a greater charge. In other embodiments one or more indicator lights may change colors, for example, from green to red when the battery is discharging or discharged. Many variants are possible. A chargingport390 provides battery power for charging rechargeable devices from the internal battery. In some embodiments the chargingport390 may be a Universal Serial Bus (USB) charging port, or other popular charging port for electrical devices. In some embodiments the chargingport390 may be a universal port that provides charging access from the internal battery to any of a number of types of charge ports. For example, the chargingport390 may facilitate use of a number of particularized port attachments that may individually electrically and/or electrically and mechanically connect to the chargingport390. For instance, one particularized port attachment may be a USB port attachment that attaches to and makes electrical contact with the chargingport390. Another particularized port attachment may be an LIGHTNING port. To charge a USB device, the user inserts the USB port attachment into the chargingport390, then connects the device to be charged to the USB port attachment. To instead charge a LIGHTNING device, the user removes the USB port attachment from the chargingport390 and instead inserts the LIGHTNING port attachment into the chargingport390. Then the user connects the LIGHTNING device to the LIGHTNING port attachment. Different port attachments, in addition to being physically different, may also be electrically different. For example, various port attachments may include voltage matching, such as a voltage limiter, to reduce the voltage of the internal battery to the recommended charging voltage. Although the device to be charged may be plugged directly into the chargingport390 or to an accessory port coupled to the charging port, electrically access may also be communicated through a cord that has the appropriate ports on both ends. In such an example, the cooler100 may include asingle charging port390, and further include a number of different electrical cords that are compatible with the chargingport390 that connect to particular charging ports on various devices. Such devices may include a music player, speaker, phone, camera, GPS, gaming device, rechargeable flashlight, etc. Once the device to be charge is electrically connected to the internal battery, then charge from the internal battery is transferred from the internal battery to the device to be charged.
• In some embodiments the chargingport390 is not limited to being a charging port, but could also include a power socket to provide direct access to the battery within the cooler. In such an embodiment the power socket could be used to provide access to the battery within the cooler to run, for example, a plug-in electric air pump for inflating beach balls or water flotation devices. The chargingport390 could be fitted with or coupled to a cigarette-lighter style plug for wide compatibility.
• Both theindicator380 and chargingport390 are water resistant or even waterproof. In some embodiments the chargingport390 includes a waterproof cap, which may be secured to the charging port. The waterproof cap keeps the chargingport390 waterproof so long as the cap is in place.
• FIGS. 7A,7B, and7C are cross-sectional views of thesecond lid300 illustrating various internal components and controls.
• The internal components of thesecond lid300 of this embodiment includes abattery352, amotor334, amotor control switch330, and various options to transfer power from the motor to thespindle322, such as through a transmission. Thespindle322 is mounted to the underside of theblender recess320 with a bushing, such as a pre-impregnated bronze bushing. In other embodiments thespindle322 may include one or more bearing surfaces to reduce the rotational drag, such as roller bearings. In general, in operation, the user places a jar of a blender (not illustrated inFIG. 7A,7B, or7C) within theblender recess320 where the blender then engages thespindle322. The user operates thecontrol switch330, which may be a two-part switch. A two-part switch reduces the chances that the blender is unintentionally operated. In a two-part switch, both parts of the switch are operated simultaneously. In the illustrated two-part switch, a first portion is rotatably raised with a first hand while the second portion is simultaneously pressed with the second hand. This action completes the electrical circuit between thebattery352 and themotor334 and causes the motor to spin. In the embodiment illustrated inFIG. 7A, thespindle322 is directly attached to a rotating portion of themotor334. In other words, when the rotator of themotor334 spins, thespindle322 is necessarily spinning because the spindle is part of the motor. Such spinning engages blades within the blender to cause the blender to operate, such as crushing ice or blending multiple components of drinks together.
• Some embodiments include a lock-out, such as a reed switch or hall-effect sensor within theblender recess320 to prevent the motor344 from energizing unless the base of the blender is properly positioned within the blender recess. In these embodiments the lock-out prevents operation of themotor334, regardless of the operation of theswitch330 if the blender jar is not seated within the blender recess. In operation, a reed switch or hall-effect sensor changes states based on the presence of a magnet mounted to or within the jar of the blender. In the case of the reed switch, a metal reed is attracted to the magnet and physically makes electrical contact with another part of the switch to close the lock-out circuit, which allows electrical current to flow. In the case of the hall-effect sensor, the sensor is structured to detect the presence of the magnetic field caused by the magnet, and change states, such as an output voltage, based on the presence or absence of the magnetic field. Detection of the changed state allows the lock-out switch to determine whether the blender is properly positioned in theblender recess320.
• Other embodiments the lock-out may prevent operation of the motor344 unless the blender jar is rotated after being positioned within theblender recess320. In yet other embodiments the lock-out may prevent operation of the motor344 unless the blender jar is physically being pressed into theblender recess320 while theswitch330 is simultaneously depressed. In such an embodiment theswitch330 need not be a two-part switch, because manipulation of the blender jar has the effect of providing one of the two-parts of thesafety switch330.
• Themotor334 is preferably a DC motor operating between 12 and 24 volts and is preferably an 18-19.2 volt motor. In one embodiment themotor334 is an 18 volt DC motor having a no-load speed of greater than 5000 RPM, with a no-load current draw of less than 15 Amps. Of course the motor specifications may be based on final implementation and may widely vary.
• In some embodiments themotor334 may be a brushless direct-drive motor and include a motor controller (not illustrated) coupled to themotor334 and operable to control the rotational speed and power draw of the motor. The motor controller may be a programmed circuit, located on, for example, a programmed chip on a printed circuit board, and electrically connected to the motor. In other embodiments the motor controller may be an Application Specific Integrated Circuit. The motor controller may be programmed or implemented to include multiple timing stages. For instance the motor controller may operate in a first stage to cause themotor334 to operate at a first speed and power level to initially crush ice contained within the blender. Next the motor controller may operate in a second stage to increase the blade speed from the first stage to a moderate stage for an initial blending stage. Finally the motor controller may operate in a third stage to further increase the blade speed for a final blending stage so that the contents of the blender are blended to a desired level. The motor controller may be pre-programmed or the stages may be directly controlled by the user. In such an user-controlled embodiment, the user would press theswitch330 once for stage one, twice in succession for stage two, and three times in succession for stage three, or some other combination. In another embodiment the user could keep theswitch330 depressed and the motor controller could automatically step through all three stages. In some embodiments the motor controller could use Pulse Width Modulation to limit the current drawn from thebattery352 to themotor334 during operation. For example the motor controller could use pulses having a particular operational pulse width and power cycle for each stage of motor operation. In other embodiments the motor controller could drive themotor334 through more than 3 stages.
• In an exemplary embodiment a first, startup stage operates for less than 1 second. The startup stage rotates the motor from 0 to an approximate first RPM. In the same exemplary embodiment, an ice-crushing, second stage spins the motor between approximately the first RPM and approximately a second RPM that is faster than the first RPM. The second stage may last for between 1 and 20 seconds, for example. In the same embodiment, a blending, third stage operates between approximately the second RPM and a third RPM that is faster than the second RPM. The third stage may last for between 5 and 20 seconds, for example.
• FIGS. 7B and 7C illustrate other structures and methods to transfer the rotational energy of the spinningmotor334 to therotating spindle322, such as through various transmissions. For exampleFIG. 7B illustrates a pulley and belt system where themotor334 includes a first pulley that is mechanically connected to asecond pulley337 through abelt338. The belt may be a toothed belt, a solid belt, or another type of belt. In some embodiments a chain may connect thepulleys337,339. Thesecond pulley337 is directly coupled to thespindle322. In operation, when themotor334 spins, this causes the first pulley to spin, which in turn causes thebelt338 to cause thesecond pulley337 to spin and turn thespindle322. This, in turn, drives the blender. By adjusting the relative sizes of thepulleys337,339, the power ratio and speed ratio of themotor334 to spindle322 may likewise be adjusted. In other words, a smallersecond pulley337 drives thespindle322 at a lower speed but has more power, while a largersecond pulley337 sacrifices power for additional rotational speed of thespindle322.
• The embodiment illustrated inFIG. 7C includes agearbox336 that likewise may be used to adjust a power and speed ratio of themotor334 to thespindle322. The power and speed of thegearbox336 may be adjusted by specifying the relatively number of gears connected to the input and output shafts. Thegearbox336 of this embodiment also changes the rotational direction of the internal spinning shafts. In other words, thegearbox336 accepts a motor shaft having a horizontal orientation and has an output shaft in the vertical orientation. The gearing of either the embodiments illustrated inFIG. 7B or7C may be selected to provide suitable torque and RPMs to sufficiently blend drinks, crush ice and puree smoothies to their desired consistencies.
• Themotor334 may be retained within thesecond lid330 in a number of ways. For instance, themotor334 may be mechanically attached by screws or adhesives. Themotor334 may instead be clamped using a clamping unit (not illustrated), so that the motor unit may be removed for repair or replacement.
• Thebattery352 provides power to themotor unit334. In the preferred embodiment thebattery352 is rechargeable. In some embodiments the battery is removed from thesecond lid300 by opening thecover350 and recharged in a separate recharging device. Then thebattery352 is replaced in thelid300 when the battery is fully charged. In these embodiments the second lid includes no charging capability. In other embodiments, thesecond lid300 may be connectable to a conventional electrical outlet, car battery, solar panel, or other charging source to charge the battery while the battery is within thelid300. In such an embodiment thelid300 may include an internal charging port (not illustrated), which, similar to theexternal charging port390 illustrated above inFIG. 6C, may include a waterproof cover for protection. Such an embodiment may not be desirable due to the extra heat generated by charging the battery and the extra complexity of including a battery charging circuit within thelid300.
• In some embodiments thebattery352 is a rechargeable 10-cell lithium-Ion battery pack including two-parallel sets of five lithium-Ion cells in series. Since each Lithium-Ion cell outputs approximately 3.6 volts, the five cells in series outputs approximately 18 volts, which matches the operating voltage of the motor. Including ten cells in the battery pack, i.e., two parallel sets of five cells, gives a total capacity of approximately 1500-4000 mAh. Of course other combinations of cells in thebattery352, such as more or fewer cells, or having the cells connected in a different configurations, is possible to match a desired output voltage and storage capacity for thebattery352. In other embodiments thebattery352 may be made of different materials other than lithium-Ion,
• such as lead-acid, nickel cadmium, nickel metal hydride, or lithium ion polymer, for example.
• FIGS. 8A and 8B are a top view and perspective view illustrating an interior space orstorage space400 of the cooler100 illustrated inFIGS. 1A and 1B according to embodiments of the invention.FIG. 8C is a perspective view of the interior space illustrated inFIGS. 8A and 8B further including illustration of an integrated cutting board according to embodiments of the invention.FIG. 8D is a perspective view of the interior space illustrated inFIGS. 8A and 8B showing additional detail according to embodiments of the invention.
• As described above, thestorage space400 is used to keep items cool in the cooler100. In some embodiments, retaining grooves orslots410 are formed into the interior shell of the cooler100. As illustrated in FIG.8C., theseslots410 are structured to accept adivider440 to divide thestorage space400 of the cooler100 into separate spaces. For example one section of thestorage space400 could be used to hold clean ice for the blender, while another section of the storage space could hold drinks surrounded by additional ice. By including twoslots410 in the cooler100, thestorage space400 could be divided yet again to provide three separate spaces within the storage space. The third storage space could be used to store dry items, i.e., items that are intended to be kept cool but that the user may not want to directly contact ice.
• Although illustrated in these figures as having twoseparate slots410, embodiments could include as many or asfew slots410 as desired.
• One or moreremovable dividers440 could be inserted into the respective slots. In some embodiments thedividers440 may serve additional functions. For example thedivider440 may be used as a cutting board for slicing fruit.
• Theslots410, as illustrated inFIG. 8A, include a front and a rear vertical section formed in the sides of the cooler100, as well as a generally horizontal section formed in the bottom surface of the cooler. Having slots on three sides provides stability to theremovable divider440 to retain it in place.
• The generallyhorizontal slots410 are coupled to slotextensions412, which further extend to aninternal drain cup420. Thehorizontal slots410, in addition to providing mechanical stability to retain theremovable dividers440, also provide a channel to guide melting ice, i.e., water, or other fluids in the bottom of theinterior space400 to theslot extensions412, which further allows the fluids to gather in theinternal drain cup420. In some embodiments thehorizontal slots410 andslot extensions412 are approximately 0.25 inches deep, and 0.25 inches wide, and sloped toward the drain cup to facilitate flow toward thedrain cup420. In some embodiments thedrain cup420 is approximately 2-4 inches in diameter, and approximately 1-3 inches deep. Preferably thedrain cup420 is approximately 3 inches in diameter and 2 inches deep. Thedrain cup420 may be circular or polyangular as illustrated. Additional detail is illustrated inFIG. 8D.
• Adrain hole430 extends from thedrain cup420 through the outer surface of the cooler100. Thedrain hole430 is relatively large, such as 0.75-1.5 inches in diameter to facilitate rapid discharge of water collected in thedrain cup420. Thedrain hole430 may have a removable or retained cap or other mechanism to allow selective opening. In other words, the user may close the cap or otherwise close the opening to thedrain hole430 and allow water to accumulate in thedrain cup420, or may open the cap or otherwise open access to the drain hole to allow the water or other fluids to drain from the drain cup. Thedrain hole430 may further include a screen, mesh or some other retaining structure to simultaneously allow liquid to flow through while retaining any solids, such as small ice cubes, to be retained within thestorage space400 of the cooler100.
• FIGS. 9A,9B, and9C are perspective views of anaccessory storage unit500 built in or attached to the cooler illustrated inFIGS. 1A and 1B. In some embodiments thestorage unit500 may be attached to the front surface of the cooler100, as illustrated inFIGS. 1A and 1B, although thestorage unit500 may be attached or coupled to the sides or back of the cooler100. In another embodiment thestorage unit500 may be attached to one or integrated into one or more of thelids130,140.
• With reference toFIGS. 9A,9B, and9C, thestorage unit500 includes abottle opener section510 as well as a coveredportion520. The coveredportion520 is covered by amovable lid522, illustrated inFIG. 9B. Thebottle opener section510 includes abottle opener512 as well as acap collection area514. The bottle opener may be formed of bent or formed metal and sized and shaped to facilitate opening standard crown-capped bottles. After opening, the crown cap is retained within thecap collection area514. The cap collection area may include a magnet within or impregnated within plastic to retain the crown caps after removal. Aslot516 allows any liquids collected in thecap collection area514 to drain. In other embodiments, the function of theslot516 may be performed by an integrated discharge tube that routes collected liquid from thestorage unit500. In some embodiments the discharge tube may discharge directly into thestorage space400 of the cooler100. In other embodiments the discharge tube may discharge directly into thedrain cup420 illustrated inFIGS. 8A,8B,8C, and8D. In yet other embodiments the discharge tube may discharge liquids to the ground.
• The coveredportion520 of thestorage unit500 may be used to retain any item desired to be retained with the cooler100, such as keys, phones, sunglasses, wallets, etc. In a preferred embodiment the covered portion stores a music player as well as a music source, such as an MP3 player or a smartphone. In yet another preferred embodiment the coveredportion520 is sized to exactly retain an integrated, removable music player that is described in more detail below. The coveredportion520 of thestorage unit500 may be approximately 5-15 inches wide and 5-15 inches tall. Preferably the covered portion is approximately 10 inches wide and approximately 8 inches tall.
• An integrated music player is sized and shaped to be removably stored within the coveredportion520. Preferably the music player is a self-contained, self-powered, music player that includes an audio input, an amplifier, and one or more speakers. The audio input may be a wired or a wireless input, or the music player may include both types of audio inputs. In a preferred embodiment the music player may be an audio player, such as an MP3 player, that may wirelessly connect to the audio source using the Bluetooth or DLNA audio standards. The audio source may be a phone, MP3 player or other audio source, for example. The music player is preferably self-powered and includes a rechargeable battery that is charged using a separate charging device. In some embodiments the music player may be powered from thebattery352 illustrated inFIGS. 7A,7B, and7C. The music player may be retained within the coveredportion520 using clips, latches, and/or straps. In other embodiments the music player is covered in pliable foam and is sized to press-fit within the coveredportion520 for easy insertion and removal. In other embodiments, the music player may not be stored within the coveredportion520, but may instead be stored within either thefirst lid130 orsecond lid140, depending on implementation.
• The coveredportion520 is accessible by operation of acover lid522. Thecover lid522 may be hinged, as illustrated, or may be held into place using other methods, such as magnets, snaps, or latches.
• FIG. 9C. is a rear perspective view of thestorage unit500. Arear support550 is illustrated. Therear support550 is used during manufacturing of the cooler100 to provide attachment points for thestorage unit500. Thestorage unit500 may be attached through the outside body of the cooler100 and into the rear support by a retaining mechanism such as screws. In some embodiments the storage unit may additionally be held in place with adhesives or using other methods. As illustrated inFIG. 9C, the storage unit has depth, approximately 1-3 inches, to provide storage area within the coveredportion520. As described below, this depth also creates an attachment point for a gear tie-down.
• FIGS. 10A,10B, and10C are perspective views illustrating ahandle600 integrated into the cooler illustrated inFIGS. 1A and 1B according to embodiments of the invention. In the illustrated embodiment, thehandle600 includes alower attachment area610, anupper attachment area620, and atop grip area630.
• Thelower attachment area610 is illustrated in detail inFIG. 10B. The lower attachment area includesapertures624 for receiving one ormore poles626. Thelower attachment area610 is held to the body of the cooler100 by screws or adhesives, or by both screws and adhesives as has been described above with reference to other attachment methods. Thelower attachment area610 includes aplatform612 sized and shaped to accept a foot placed thereon. In operation, a user can step on theplatform612 to provide leverage while pulling back on thehandle600 to tip the cooler so that it is resting on the wheels and ready for travel. Theplatform612 may be integrated or affixed to the lower attachment area. Theplatform612 may additionally includetreads614 to increase friction and to hold the foot in place during the tipping operation. The lower attachment area further includesslots616 and anoverhang618 described with reference to the gear storage system illustrated and described below.
• Referring back toFIGS. 10A and 10C, theupper attachment area620 may be directly attached to a top lip of the cooler, as illustrated inFIG. 10C. Such an attachment method provides a strong attachment system to withstand the forces caused that using thehandle600 may invoke. Atop grip area630 includes arelease button630 to allow thehandle600 to be extended or retracted in a telescoping manner. In other words, the poles making up thehandle600 may slide within one another to reduce area when the handle is not needed.
• FIGS. 11A and 11B are perspective diagrams illustrating an external shape of a rear portion of the cooler illustrated inFIGS. 1A and 1B, andFIG. 11C is a side view diagram illustrating the same.
• As described above, the cooler100 is preferable rectangular in shape. Conventional coolers have a problem, however, in that they tend to drag across soft surfaces, such as sand, tall grass, or the forest floor. Even conventional coolers including wheels have this dragging action because of the outer shape of the conventional cooler, which tends to dig into the soft surface. Embodiments of the invention address this problem by including a slidingportion170 of a rear surface of the cooler100 to accommodate such operational conditions. More specifically, the slidingportion170 is shaped, formed, or otherwise implemented to cause the cooler100 to follow the contour of a soft surface over which the cooler100 is traveling. For example, if the cooler100 as illustrated inFIG. 11A is being pulled through sand, even the relatively large wheels of the cooler100 may tend to sink in the sand. Conventional coolers plow the sand with a rigid and sharply shaped rear-bottom edge. The cooler100 according to embodiments of the invention, however, include a slidingportion170 integrated into the form factor of the rear and bottom surfaces of the cooler100. With reference toFIGS. 11B and 11C, the illustrated embodiment includes no sharp edges that tend to plow into soft surfaces. Instead, the slidingportion170 of the cooler100 is shaped to cause the cooler to more easily slide over the soft surface. Although the slidingportion170 is illustrated here as having a curved surface having a radius that is smaller than a radius of thewheels120, the slidingportion170 may take other shapes. For instance the slidingportion170 may be a relatively flat angle. In some embodiments the curved portion of the rear of the cooler may start approximately one-third to one-half from a depth of the cooler, and continue to approximately one-third to one-half of the height of the cooler. Such a structure is illustrated particularly well byFIG. 11C. In other embodiments an angled portion may start approximately one-third from a depth of the cooler and continue to approximately one-third of the height of the cooler. In one embodiment (not illustrated), the slidingportion170 is relatively planer and has an angle of approximately 45° relative to the bottom surface and/or a rear surface of the cooler100. The slidingportion170 is shaped to provide additional clearance to the bottom edge of the cooler100 when the cooler100 is tipped backwards. In some embodiments the slidingportion170 is shaped to provide maximum clearance between a rear surface of the cooler100 when the cooler is tipped backwards between approximately 30-60 degrees, and preferably when the cooler is tipped backwards at approximately 45 degrees.
• FIG. 12A is a rear view of the cooler100 illustrated inFIGS. 1A and 1B. As described above, the cooler100 includes one ormore wheels120. The wheels may be formed of strong plastic or rubber, for example. As illustrated inFIGS. 11A,11B,11C, andFIG. 12A, the body of the cooler may be specifically shaped to provide relief for the wheels. In other words, the body of the cooler100 is cut in to accept the wheel mounts so that thewheels120 do not extend beyond the lateral edges of the cooler. In addition, a width of the wheels is chosen to be quite wide relative to standard wheels. Selection of wider wheels allows the wheels to better support the cooler when traveling over soft surfaces, so that the weight of the cooler does not drive the wheels into the soft surface. In one embodiment, the overall cooler width is approximately 25 inches wide, while each of thewheels120 has a width of approximately 2.5-4 inches, and preferably approximately 3 inches. The width of thewheels120 may scale as the width of the cooler changes so as to keep the same approximate wheel-width to cooler-width ratio. In one embodiment each wheel has a diameter of approximately 3-8 inches, and preferably 6 inches.
• FIGS. 13A and 13B illustrate additional features of the wheels that may be attached to the cooler ofFIGS. 1A and 1B according to embodiments of the invention. In this embodiment thewheels120 include alternatinglands122,123. A groove is formed by formingrecesses124,125, respectively in the alternatinglands122,124. Whenmultiple recesses124,125 are formed together, the groove is formed. As illustrated inFIG. 13B, an O-ring126 may be disposed within the groove, and held in place by the alternatingrecesses124,125. The O-ring may be formed of rubber or other pliable material that is softer than the material forming thewheels120. The combination of the harder material for thewheels120 with the softer material for the O-ring functions to absorb noise caused when the cooler100 is rolled on a hard, relatively rough surface, such as concrete or asphalt. Additionally, the O-ring126 may be replaced without requiring replacement of theentire wheels120. In some embodiments the O-ring126 has a diameter of between 0.01 and 0.5 inches. In other embodiments the O-ring may be an internal component of a much wider soft cover for wheels. In other words, such a wheel cover may have a width of 1-2 inches wide on the exterior surface, with an internal O-ring to keep the wheel cover in position on thewheel120.
• Another feature of the cooler according to embodiments of the invention is an integrated tie-down system, illustrated best with reference toFIGS. 12A,12B, andFIG. 1B. Embodiments of the invention include an integrated tie-down system, which incorporates pieces of thehandle160 as well as thestorage unit500. The tie down system includes acord168 illustrated inFIG. 12B. Thecord168 is preferably a dynamic, i.e., stretchable, cord, but could be a static line as well. Examples of material for thecord168 include elastic or nylon rubber.
• The cooler100 is structured to store thecord168 when not in use, but is also structured to allow thecord168 to be extended to secure gear placed on the cooler when convenient. Examples of gear placed on the cooler may include, for example, folding chairs, sporting equipment, blankets, etc. When a user wishes to use secure such items on the cooler100, thecord168 may be extended over the items and secured to anunderlip152 of thestorage unit500, illustrated best inFIG. 1B. In other words, the end loop of thecord168 is looped over the gear to be stored and underneath theunderlip152 of thestorage unit500, which retains that portion of thecord168. Other embodiments may include different attachment mechanisms, such as hooks, loops, and underlips located on other surfaces, such as on one or more of the lids or elsewhere on the cooler body, for example. Then, the user can tighten thecord168 by pullingexcess cord168 slack through one or bothclam cleats164 as illustrated inFIG. 12B. Theclam cleats164 frictionally hold thecord168 in place until released. Such release is accomplished by pulling thecord168 laterally away from theclam cleats164. In addition or instead of clam cleats, thecord168 may be tightened and/or retained in any of a number of ways, such as by using clips, latches, knobs, clamps, other types of mechanical interference or other methods to retain the tie-down cord168.
• In some embodimentsexcess cord168 may be threaded throughslots162, illustrated inFIGS. 12A and 12B, and retained bycord lip163 formed in the lower attachment area of thehandle160.
• When not in use, thecord168 may be wrapped around the outside of both thelower attachment area165 andupper attachment area166 of thehandle160, and may be retained by an undercut underneath thelower attachment area165 of thehandle160.
• FIG. 14 is a side view of an example blender jar and associated parts for use with the cooler100 described with reference toFIGS. 1A and 1B. Anexample blender jar170 includes amain blender jar172,spout173, and handle174. Theblender jar172 may be made from food grade plastic or glass, or other suitable material. Alid175 covers themain blender jar172 and functions to keep items within the blender jar as they are being blended. In some embodiments thelid175 may be sized and shaped to cover theblender recess142 illustrated inFIG. 1B. In such an embodiment theblender lid175 may protect the blender spindle.
• Acollar176 attaches to theblender jar172 in a typical manner, such as by engaging corresponding threads on the outside of the blender jar and inside of thecollar176. Also, thecollar176 may be used to secure a set ofblades177 within theblender jar172 in a known manner. Thecollar176 may be shaped to insert within theblender recess142 ofFIG. 1B, which engages with protuberances of the collar to prevent rotation of theblender jar172 during blending operation. Of course, theblender recess142 may instead be shaped to form a negative geometry of thecollar176.
• Areceiver178 in the bottom of the set ofblades177 is structured to receive a blender spindle, such as theblender spindle322 illustrated inFIG. 6A.
• In operation, theblender170 is first assembled by inserting the set ofblades177 from an open bottom of theblender jar172. The set ofblades177 are held in place by securing thecollar176, such as by threading the collar onto theblender jar172.
• Then, to blend a drink, the contents to be blended are placed in the assembledblender jar172, either before or after theblender jar172 is mounted within theblender recess142. To mount theblender jar172 in theblender recess142, first thereceiver178 in the bottom of the set of blades is engaged with the blender spindle, such as by rotating either the spindle or theblender jar172 to cause the blender spindle to be inserted within the receiver. Next theblender jar172 is positioned so that it drops into theblender recess142. In some embodiments, positioning theblender jar172 within theblender recess142 satisfies the lock-out switch, thus enabling theblender170 for use.
• Next, the blender switch is actuated, which causes the motor to spin the spindle, which in turn causes theblades177 to spin and blend the contents of theblender jar172 into a blended drink.
• What has been described and illustrated herein are embodiments of the invention along with some of their variations. The terms, descriptions and figures used herein are set forth by way of illustration only and are not meant as limitations. Those skilled in the art will recognize that many variations are possible within the spirit and scope of the invention in which all terms are meant in their broadest, reasonable scope unless otherwise indicated.
• Although specific embodiments of the invention have been illustrated and described for purposes if illustration, it will be understood that various modifications may be made without departing from the spirit and scope of the invention. Accordingly, the invention should not be limited except as by the appended claims.

Claims (17)

What is claimed is:

1. A portable cooler, comprising:

a cooler body formed of an insulating shell defining an interior storage section, the cooler body having a lid mating surface formed at a first angle relative to a bottom surface of the cooler body; and

a cooler lid coupled to the cooler body by a hinge and structured to pivot about the hinge relative to the cooler body, the cooler lid including a body mating surface formed at a second angle that is a supplementary angle to the first angle so that a first surface of the cooler lid extends generally horizontally from the cooler body when the lid is fully opened.

2. The portable cooler ofclaim 1 in which the first angle is other than a normal angle relative to the bottom surface of the cooler body.

3. The portable cooler ofclaim 1 in which the first angle is approximately 70°.

4. The portable cooler ofclaim 1, in which the hinge is a piano hinge, and in which the cooler body further comprises a projection disposed at each end of the piano hinge to cover each respective end of the piano hinge.

5. The portable cooler ofclaim 1 in which the piano hinge is made from stainless steel.

6. The portable cooler ofclaim 1, in which the first surface of the cooler comprises a blender receiving recess structured to accept a blender jar within it and prevent the blender jar from spinning when a rotating force is applied to the blender jar.

7. The portable cooler ofclaim 1, in which the cooler body further includes a second lid mating surface opposite the lid mating surface and formed at a third angle relative to a bottom surface of the cooler body, the portable cooler further comprising:

a second cooler lid coupled to the cooler body by a second hinge and structured to pivot about the second hinge relative to the cooler body, the second cooler lid including a second body mating surface formed at a fourth angle that is a supplementary angle to the third angle so that a first surface of the second cooler lid extends generally horizontally from the cooler body when the second lid is fully opened.

8. The portable cooler ofclaim 7 in which the first angle is the same as the third angle and in which the second angle is the same as the fourth angle.

9. A portable cooler, comprising:

a cooler body formed of an insulating shell defining an interior storage section;

a lid coupled to the cooler body by a hinge, the lid structured to pivot about the hinge and contact the cooler body in a lid contact region; and

an internal reinforcement formed within the cooler body, the internal reinforcement structured to cause the cooler body to resist deflection in the lid contact region when the lid is opened and in contact with the cooler body.

10. The portable cooler ofclaim 9 in which the lid is free from retaining straps coupled to the cooler body.

11. The portable cooler ofclaim 9 in which the internal reinforcement includes a physical structure including support structures formed along a horizontal plane, and further comprising support structures formed transverse to the horizontal plane.

12. The portable cooler ofclaim 9 in which the support structure is encased in insulating foam.

13. The portable cooler ofclaim 9 in which the internal reinforcement includes a physical structure including a plurality of annular units formed along a horizontal plane and structured to mechanically lock with insulating foam.

14. The portable cooler ofclaim 9 in which the support structure is formed of high density plastic.

15. The portable cooler ofclaim 9 in which the hinge is secured to the cooler body through the internal reinforcement.

16. The portable cooler ofclaim 9, further comprising:

a second lid coupled to the cooler body by a second hinge, the second lid structured to pivot about the second hinge and contact the cooler body in a second lid contact region; and

a second internal reinforcement formed within the cooler body, the second internal reinforcement structured to cause the cooler body to resist deflection in the second lid contact region when the second lid is opened and in contact with the cooler body.

17. The portable cooler ofclaim 9, in which the internal reinforcement structure is located only near an area of the lid content region.

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