US2032776A - Dispensing container and closure therefor - Google Patents

Description

f 25 HF- a? March 3, 1936. H. E, VAN NESS 2,032,775

DISPENSING CONTAINER AND CLOSURE THEREFOR FiledvFeb. 8, 1934 ATTORNEY Patented Mar. 3, 1936 PATENT OFFICE DISPENSING CONTAINER AND oLosURE THEREFOR Henry E. Van Ness, Elmira, N. Y.

Application February 8, 1934, Serial No. 710,225

10 Claims.

This invention relates to dispensing containers and closures therefor. It is particularly directed to providing a secure and convenient closure for dispensing tubes such as those in which shaving cream, toothpaste and the like are supplied.

The threaded caps customarily used on such tubes have the advantage of effecting a tight closure, but the disadvantage of being incon venient in use and easily mislaid. Various types of valve closures have been proposed, usually in connection with screw caps, but they have proved unsuccessful because they have been expensive to manufacture and have failed to effect a tight closing after wear.

The closure which I have invented overcomes these disadvantages. It includes a ball valve with the ball seated in the tube itself so that no cap or separate part is required. The ball is constantly urged into its seat by resilient pressure, so that a tight closing is secured even after wear. The closure may be manufactured at a cost no greater than that of the common screw cap, and is much more convenient in use.

In order that my invention may clearly be 25- understood, I will describe the specific embodiments of it which are shown in the accompanying drawing, in which:

Fig. 1 is a side elevation of a dispensing tube provided with my closure showing the closure in open position;

Fig. 2 is a top view of the tube shown in Fig. 1;

'Fig. 3 is an enlarged vertical section of the closure taken on the line 3-3 of Fig. 2 and showing the valve in open position;

Fig. 4 is a similar section of the View showing the valve in closed position;

Fig. 5 is a vertical section on the line 5-5 of Fig. 3 showing the valve in open position;

Fig. 6 is a view similar to Fig. 4 showing the 40' position of the resilient valve seat before it is forced into contact with the ball in the manufacture of the device;

Fig. 7 is a horizontal section on the line 1-1 of Fig. 3;

Fig. 8 is a side view of the valve ball showing the flats which serve as trunnions;

Fig. 9 is a view similar to Fig. 4 showing a modification in which the valve ball is resiliently locked in closed position;

Fig. 10 is a view similar to Fig. 4 showing a modification providing a seal for the tube; and

Fig. 11 is a top view of the form shown in Fig. 10 with the seal cut off.

The tube is formed by extrusion from a single 55' piece of metal to provide a tube body II], a conical top H and a projecting boss l2 at the middle of the top. The boss l2 has straight sides and a rounded end, that is, it has the general shape of a h'ollowcyli'nd'er surmounted by a hollow hemisphere. It provides an upper spherically curved seat [3 for a valve ball [5. In the center of the seat I3 is a circular discharge opening l4 communicating with a diametrical bore I6 in the ball l5 when the ball is turned to place this bore vertical as shown in Fig. 3.

Aresilient disc 20 provides a lower seat for the ball and urges it against its upper seat l3. Thedisc 20 is most desirably made of stainless steel, but may consist of other resilient material. It contains a central opening 2| which registers with the bore I6 when the bore is vertical.

In making "the tube, the lower end of the tube body is left open until the closure is made in the following manner: First, theball 15 is placed against its seat l3. Then, thedisc 20 is placed against the' lower side of the ball in its normally flat condition as shown in Fig. 6. Then, a swag-' ing die is introduced through the bottom of the tube body to force the peripheral part of thedisc 20 towards the seat l3 and to form an internal annular projection 22 at the inner end of the boss under the disc to hold the disc in a" deformed curved condition in which the edge of the opening 2| in the 'disc is forced by the resiliency of the disc against the ball l5 so as to urge the ballagainst its upper seat I3. After the withdrawal of the swaging die and the filling of the tube, the bottom of the tube body I0 is closed in the usual manner by folding it over as indicated in Fig. 1. The ball is thus resiliently clamped between its two seats so that it affords a tight closure when its bore is out of alignment with the openings 2|, l6, and thetightness of the closure is maintained even after wear on the ball or its seats from repeated opening and closing. The resilient disc automatically takes up for such wear.

To facilitate opening and closing the valve,

the ball [5 is provided with a handle 23'which projects through the discharge opening l4. When the handle is at oneside of the discharge opening [4, the bore I6 is out of alignment with the opening (Fig. 4); and when the handle is in anotch 24 at the other side of the opening M, the bore is aligned with the opening (Figs. 2, 3). A feature of the invention consists in guiding the movements of the handle between open and closed position by limiting the turning movements of the ball to a single plane. For this purpose the ball i5 is provided with opposite, parallel,flat surfaces 25, which engage corresponding flat sur-' well as thenotch 24, are located in the equatorial plane of the ball.

In the modification shown in Fig. 9, a resilient lock is providedto prevent accidental opening of the valve. The ball I5 is similar to the balll5 used in the first form except for the fact that it contains a shallow, rounded,circular groove 21 of the same diameter as that of the hole 2| in thedisc 20. The center of this groove lies on the equator of the ball in such position that it engages the periphery of the hole ll in thedisc 20 when the bore I6 is out of alignment with the openings 2|, [4. The ball thus has a short projection 28 (constituted by the portion of its surface surrounded by the groove 21) which lies in the hole 2| when the valve'is closed. Consequently; inorder toopen the valve, the spring disc must be forced slightly downward. The inherentresiliency of the disc resists'this movement sufficiently to guard against accidental opening of. the valve.

In the modificationshown in Figs. and 11,,

a seal for the tube is provided... In this case, the

discharge opening I4". is made rectangular and" the material. of the boss is extended upward from the edges of this opening and across the opening to provide an offset, integral, sealingcap 30. The sealing cap is offset sufliciently to provide space within it for a flat handle 23' projecting from the ball l5, and adapted to lie against oneside 3| of the rectangular opening l4 when'the valve is' closed, and against the opposite side 32 a when the valve is opened. The handle is kept parallel to these twoopposite sides 3|, 32 of the opening by the engagement of thefiat surfaces 25, 26, whichare perpendicular to the handle and to thesides 3|, 32 at the opening. The sealingcap 30 is severed or broken along agroove 33 when the contents of' the tube are first to be used. After this has been done, the handle 23'is accessible, and the valve may be opened and closed by moving it across the discharge opening between thesides 3| and 32 thereof.

The references to the top and bottom oi the tube and its various parts and to upward and downward movements are'used in this specification and the claims which follow to facilitate description of the parts inv the position in which the tube is shown. in the drawing, and are not intended as limitations or as indicating that the tube need be, or ordinarily is, in this position during either the making or the use of the tube.

What I claim'is:

1.'A closure for dispensing containers comprising a straight-sided, rounded-end, hollow boss projecting from a wall of the container and providing at its outer end a spherically curved valve seat, a valve ball in said. boss, and a metal spring secured in said boss engaging said ball and urging it against the'end 0': the boss.

'2. A "closure for dispensing containers comprising a straight-sided, rounded-end, hollow boss projecting from a wall of the container, a

valve ball in said' boss, and a spring disc having its periphery secured in said boss and its inner portion engaging said'ball and urging it against the end of the boss.

3. A closure for dispensing containers comprising a straight-sided, rounded-end boss pro jecting from. a wall of the container and having a discharge opening in its end, a valve ball in said boss, and an annular spring disc having its outer periphery secured in said boss so that its inner periphery bears against said ball and urges it against the end of the boss.

4. A dispensing container having a wall containing a circular hole and having astraightsided, rounded-end boss projecting from said wall at the periphery of said hole and providing a spherically curved valve seat containing a dis-.

charge opening in its end, a valve ball in said boss, and a perforated spring disc in said boss 6. A dispensing device, comprising a valve body providing a valve seat and containing a discharge opening, a perforated spring disc secured in said Valve bodyopposite said seat, a

valve ball having a projection adapted to fit into the perforation in said disc and containing a passage whose end is spaced from said projection so that it is out of alignment with the discharge opening when the projection is in engagement with the perforation of the disc.

'7. A dispensing device, comprising a valve body providing a valve seat and containing a dis charge opening, an annular spring disc secured in said valve body opposite said seat, and a valve ball having a shallow, rounded, circular groove adapted to engage the inner periphery of said disc and containing a passage whose end is spaced from said groove so that it is out' of alignment with said discharge opening when the groove 'is in engagement with the inner periphery of the disc.

8. A one-piece dispensing tube having a projecting hollow boss containing a discharge opening in its outer end and having an integral ofiset sealing cap covering said. opening, a valve ball in said boss containing a dispensing passage movable into and out of register with said discharge opening, and a' handle on said ball projecting through said discharge opening into the space enclosed bythe tangular discharge opening of less width than the diameter of the casing, a valve ball in said valve body containing a passage therethrough, a flat handle projecting from said ball into the discharge opening and adjacent to one end of the.

passage in the ball, and cooperating engaging means on the ball and the valve body limiting the turning movement of the ball to rotation about an axis parallel to the long dimension of said handle and to two opposite ends of the rectangular discharge opening.

10. A self-adjusting dispensing device which comprises a valve body containing a seat, a ball in said'valve body, a perforated normally flat spring disc having the edges of its perforation in contact with the ball, and means for securing the periphery of the disc to the valve 'body in a plane displaced from the plane of the perforation in the disc so that the disc maintains a resilient pressure against the ball.

HENRY E. VAN NESS.

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