US1485166A - Jar cap - Google Patents

Description

Feb. 26, 1924.

l. J. CELONA AR CAP Filed Jan. 30. 1923 Gum my Patented Feb. 26, 1924.

UNITED STATES IGNA'HIUS J. GELONA, 0F BROOKLYN, NEW YORK.

JAB CAR Application filed January 80, 1923. Serial No. 615,971.

To all when it may concern:

Be it known that IGNATIUS J. CELONA, a. citizen of the United States, residing at Brooklyn, in the county of Kings and btate of New York, has invented certain new and useful-Improvements in Jar Caps, of which the following is a specification.

The present invention relates to improvements in jar caps and the like in which a metallic cap is used for sealing tumblers and."

bottles.

An object of the invention is to provlde for ease in the removal of the cap without destruction to the sealing gasket and theto be reglass whereby to enable thecap placed and to reseal the container when sof replaced.

Another object of the invention resides in providing a simply constructed cap adapted for use upon any tumbler or glass having a circular flat wall and in so constructing the cap as to admit of its removal without the stage prior to its application to acontainer.

Figure 2 is a fragmentary section of a container showing the improved cap initially placed thereon with a gasket loosely held thereby.

Figure 3 is a similar view showing the final position of the cap.

Figure 4 is a similar sectional view showing the condition of the cap when the pressure is released, and

Figure 5 is a fragmentary side view of a container and a side view of the improved ca%thereon.

eferring more particularly to the drawingand for the present to Figure 1 6 represents the bodyportion of a container cap such as used to seal the glass jars, bottles and the like. The cap is of metal possessing sufiicient rigidity to form a seal at the side of the container as indicated in Figure 3. Figure 1 shows the initial condition of the cap subsequent to its stamping and prior to its application to the bottle or other container indicated at 7 The body portion 6 effects the general shape of a disc of suitable diameter to fit across the open end or mouth of the container 7 and to rest upon the upper edge or lipof the same as indicated in-Fig'ure 2. At the edge of the disc 6 is a depending flange 8 made in one piece with the cap body and rather snugly embracing the outside wall of the container. At the base of the flange 8, which may be made rather shallow is a shoulder or -abut ment 9 formed by turning the material outwardly in a sweep or curve from the bottom edge of the flange.

The material is then continued upwardly to constitute the inner wall 10 of a releasing annulus of which-11 is the outer wall formed by turning the metal downwardly from the upper edge of said inner wall 10. It will be noted that in the formation of the various parts just described, the material is made to assume a substantially S-formation. The pressure ring 12 is a continuation of the outer wall 11 and lies beneath the releasing annulus.

As indicated in Figure 2 the pressure ring 12 is bent at an acute angleas indicated at 13 toward the wall of the receptacle 7 and this bend is given the pressure ring for the purpose of securingwthe compressible gasket 14 between said ring and'the shoulder or abutment 9. After the parts have been caused to assume theposition and the relative location shown in Figure 2, suitable implements are employed to cause the compressing of the gasket 14,,the lifting of the ring 12 and its tightening about the jar and the collapsingtogether-of the walls 10 and 11, to ether with a lifting of these walls to the en that the releasingannulus, as a 7 whole may project to some con siderable extent beyond the plane of the cap body or disc 6; The efi'ect of these various movements of the parts is to subject the gasket 14 to a pressure which is intense and resilient. The pressure ring 12 will hold the gasket tightly against the jar wall and under compression, inasmuch as the shoulder 9 arrests the further upper movement of the gasket. The'pressuredeveloped by the ring 12 will be resilient owing to its entire freedom of the wall 10 except at the top thereof so that it isgiven a wide leverage. Great strength is imparted 'b the fact that the two walls 10 and 11, w en in contact, reinforce and. strengthen one another and consequently the releasing annulus is capable of withstanding all of the shocks and jars incident to transportation and packing of the merchandise. The annulus forms substantiall a cylinder lying spaced from the wall of t e container 7 and concentric with this wall and having as the axis of such cylinder the axis of the jar 7. The annulus projects at all points around the jar beyond the cap and is therefore exposed for receiving blows at all points simultaneously. The jar may be inverted and used as an implement itself in hammering the annulus against a table or other surface. This will probably be found to be the best method of opening the cap.

The condition subsequent to such hammering is indicated in Figure 4 where the annulus has been beaten down causing the'ring 12 to retreat away from the gasket and causing the se aration to some extent of the walls 10 an 11. In this condition the cap may be lifted off the jar with some slight application of force and so much of the contents removed as is demanded on one occasion by the consumer. The contents is'usually of a perishable nature and it will be seen that the cap is not injured to the extent of being of no further use. Quite to the contrary the asket :is intact, the pressure thereon having een merely released, and the general character of the cap has not been altered and the ring 12 has merely been backed off to release that excessive pressure which would interfere with the removal of the cap and gasket together. However sufficient pressure will always remain to enable the cap to be replaced and to reseal the contents when so replaced. The remainder of the contents of the jar is in this way preserved and the contents will not become contaminated. The article is thus useful until the entire contents of the jar have been consumed.

The improved cap will recommend itself as being eas and cheap to make, strong and durable an its attractiveness and neat and smooth appearance is indicated in Figure 5, it having no projecting parts.

I do not wish to be restricted to thesize,

form, and proportions of the various parts, and obviously changes could be made in the construction herein described without de arting from the spirit of the invention it ein only necessary that such changes fall within the scope of the appended claims.

:What is claimed is 1. A container cap comprising a disc having a flange at its edge with an abutment at the base of the flange, a pressure ring supported by and extending beneath the flange, sealing means between said abutment and the pressure ring, and a releasing annulus outwardl of the flange and carryin said ring, said annulus havlng its upper e ge lying uniformly above the plane of the disc, whereb under pressure on the top of the annulus the circumferential portion of the cap is expanded to facilitate removal of same.

2. A metallic cap for sealing containers and the like comprlsing a flat disc having a flange: with a shoulder at the lower edge of the flange, a gasket seated below the shoulder and against the container, areleasing annulus carried by the shoulder and having inner and outer separable walls normally lying in contact and extending abovethe plane of the flatidisc, and a pressure ring carried by the outer wall. of the annulus and bent in upon the gasket at substantially an acute angle, said annulus being deformable under pressure to release the cap.

3. A container cap comprising a disc having a flange at its edge with an abutment at the base of the flange, a pressure ring supported by and extending beneath the flange, sealing means between said abutment and the pressure ring, and a releasing annulus outwardly of the flange and carrying said ring, said annulus having its upper edge lying uniformly above the plane of the disc, whereby under pressure on the top of the annulus the circumferential portion of the cap is expanded to facilitate removal of same, the sealing means being permanently retained in the pressure ring.

In testimony whereof I aflix my signature.

IGNATIUS J. CELONA.

In presence ofr J. MA'I'I'IA.

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