US2696318A - Closure sealing means for jars, bottles, and the like - Google Patents

Description

Dec. 7, 1954 K|HM 2,696,318

CLOSUREV SEALING MEANS FOR JARS, BOTTLES, AND THE LIKE Filed July 15, 1950 INVENTOR: 6 1 0 967 5 11am 1 f /(////1 ATTORNEYS United States PatentO CLOSURE SEALING NIEAN S FORJARS, BOTTLES, I

. AND THE LH(E The fiuidtight closing of pots, jarsybottles and the like containers is executed generally through the insertion ofva washer or disc of cork between the edge of the con- "iner arida metal cover'fitted round the periphery of the neck of the container. Now these washers, discs or the like packings Jshow numerous drawbacks, the chief of which are as follows;

Poor resistance to certain chemicals such asacids and particularly fuming sulphuric acid, cleaning products and thelikethat require special closing means whenbott-led.

Ready decay that renders said packings unfit for further use once they have served for closing bottles containing certain liquids and even beverages such as wine, beer or the'like whichhave communicated a flavour to them. This renders the storing of such bottles difiicult even for a limited time.

Thick packingshave also "been proposed that are obtained by cutting out paper discs that have been =made liquid-proof through the agencyof vinyl chlorideor of a synthetic product such as that sold under the registered trade name Rhodopass. But such packings are not capable of a long life and their manufacture is an intricate and costly one.

My invention has for its object a joint adapted to serve as as a cover or plug for use with caps provided with a skirt, a band of metal or plastic material, or again an adhesive ribbon fitted to the periphery of the container neck or clamped or glued to said neck, said joint being obtained through injection or molding of plastic material such as polyethylene or the like synthetic material.

I have illustrated by way of example in accompanying drawings various embodiments of a packing for a bottle and of a cover for a jar. In said drawings:

Figs. 1 and 2 are plan views seen respectively from above and from below of a packing used for the stoppering of bottles.

Figs. 3 to 5 are longitudinal cross-sections of a bottle neck closed respectively by a fitted cap, by a cap provided with a folded flange engaging the neck, and by a screwed stopper.

Figs. 6 to 8 are views respectively in plan view from above, in plan view from below and in vertical cross section through line 8--8 of Fig. 6 of a further embodiment of the packing.

Fig. 9 is a diametrical vertical cross-section of a still further embodiment of a packing for a plug that is screwed, clamped or provided with a cam.

Figs. 10 and 11 are a plan view and a vertical cross section through line 11--11 of Fig. 10 of another embodiment of the packing.

Figs. 12 and 13 are respectively a plan view and a vertical cross-section through line 13-13 of Fig. 12 of a packing the periphery of which is provided with studs for holding said packing in position.

In the execution of the closing means according to my invention, I may use polyethylene, chiefly the material sold under the registered name Alkathene.

Turning to Figs. 1 to 4, the closing means 2 include a washer or a disc depressed in its central part at 2a, said part having a diameter such that it fits inside the neck 4 of the bottle. The underside of said washer is provided with an annular bead 3 located near the outer periphery of the washer and adapted to bear, upon stopperilriig of the bottle, against the upper part of the bottle nec The neck 4 associated with the packing 2 is closed at ice 2 its upper end in the case illustrated in Fig. 4, by afitted cap 5 of. aluminum for instance that holds the packing or washer 2 in position.

The neck 4a illustrated in Fig. 4 is closed by a metal cap 6 of the type with a folded flange used commonly for sparkling beverages.

The neck 4b illustrated in Fig. 5 is closed by an outer screwed plug 7 of plastic material or of metal.

In another embodiment illustrated in Figs. 6 to 8, the washer or disc 21], the central part 20 of which is depressed in order to engage the neck of the container, is provided at its periphery with an annular groove 8 formed on the upper surface of the disc preferably in register with the bead 9 without this being anessential feature. This provides the periphery of the washer with sufficient yieldingness for said washer to be deformed into perfect engagement with the upper part oftheneck of the bottle for producing perfect fluidtightness,

Said packing may also .receive'the shape illustrated in Fig. 9, wherein it is provided with an upstanding ring 11 along the edge of its depressed part, said ring projecting above the peripheral portion 12 of the washer. Said annular peripheral portion 12 is provided along-its uppersurface with a circular groove 13 on the outside of the ring and along its lower surface with a bead '14. Theprojecting ring 11 furthers the'tight fitting'of .the depressed part 1-5 of the joint into the neck'of the container. The groove and bead on said peripheral portion 12 cooperate in ensuring a perfectly fluidtightclosing.

The packing washer 2b illustrated in Figs. '6 to 8 may also be provided in its depressedportionZc with an axial prop 23 as illustrated in Figs. 10 and 11. .The height of said prop '23 should be such that its outer end engages the bottom ofwthe stopper or cap so as toiconstrain the packing ,to remain always axially of the neck of the bottle when the latter is closed.

Said prop 23 has chiefly for its advantage to transmit to the bottom of the depressed portion of the packing the mechanical thrusts that may be exerted from outside against the metal cap in order to secure it in position and to provide for fiuidtightness.

Before positioning the closing washer and securing it onto the container, it is fitted inside the metal cap, but it may occur during the handling that precedes the stoppering that the packing may escape out of the inside of the cap. To ensure a secure fitting of the washer inside the cap, a few studs 24 (Figs. 12 and 13) are provided as projectings beyond the periphery of the washer and as they engage frictionally the inner wall of the metal cap, they hold the washer rigidly to said cap.

If the metal cap is destroyed at the opening of the bottle, the disc or washer described may serve as a temporary stopper by reason of the action of the depressed central part engaging the neck and holding the disc or washer in position.

Provided its size is suitably selected, the same packing may ensure the closing of containers of any type and in particular of pots, glasses, jars or the like.

What I claim is:

1. In combination with a flanged cap fitted over the neck of a container, the provision of a member of yielding plastic material including an axial tubular part adapted to frictionally engage the inner wall of the neck of the container, a flat bottom section closing the tubular part and rigid with the lower edge thereof, extending underneath the cap and leaving a completely free space between said cap and said bottom section, a peripheral annular flat part extending round and rigid with the upper periphery of the tubular part and the width of which is substantially equal to the thickness of the neck wall, the upper surface of said annular part engaging directly the corresponding annular section of the inner surface of the cap, at least one annular rib depending from said annular part and engaging the upper edge of the neck wall along an annular section the width of which is substantially less than that of the annular part.

2. In combination with a flanged cap fitted over the neck of a container, the provision of a member of yielding plastic material including an axial tubular part adapted to frictionally engage the inner wall of the neck of the container, a fiat bottom section closing the tubular part and rigid with the lower edge thereof, extending underneath the cap and leaving a completely free space between said cap and said bottom section, a peripheral annular flat part extending round and rigid with the upper periphery of the tubular part and the width of which is substantially equal to that of the thickness of the neck wall, the upper surface of said annular part engaging directly the corresponding annular section of the inner surface of the cap, said annular part including at least one coaxial stamped out part forming a groove on the upper surface of the annular part and a corresponding rib on its lower surface, said rib depending from said annular part and engaging the upper edge of the neck wall along an annular section the width of which is substantially less than that of the annular part.

3. In combination with a flanged cap fitted over the neck of a container, the provision of a member of yielding plastic material including an axial tubular part adapted to frictionally engage the inner wall of the neck of the container, a flat bottom section closing the tubular part and rigid with the lower edge thereof, extending underneath the cap and leaving a completely free space between said cap and said bottom section, a peripheral annular flat part extending round and rigid with the upper periphery of the tubular part and the width of which is substantially equal to that of the thickness of the neck wall, the upper surface of said annular part engaging directly the corresponding annular section of the inner surface of the cap, at least one annular rib depending from said annular part and engaging the upper edge of the neck wall along an annular section the width of which is substantially less than that of the annular part, and a stud projecting above the bottom section and the height of which is at least equal to that separating said bottom section from the upper surface of the annular part.

4. In combination with a flanged cap fitted over the the neck of a container, the provision of a member of yielding plastic material including an axial tubular part adapted to frictionally engage the inner wall of the neck of the container, a flat bottom section closing the tubular part and rigid with the lower edge thereof, extending underneath the cap and leaving a completely free space between said cap and said bottom section, a peripheral annular flat part extending round and rigid with the upper periphery of the tubular part and the width of which is substantially equal to the thickness of the neck wall, the upper surface of said annular part engaging directly the corresponding annular section of the inner surface of the cap, at least one annular rib depending from said annular part and engaging the upper edge of the neck wall along an annular section the width of which is substantially less than that of the annular part and a plurality of radial projections on the outer periphery of the annular part adapted to engage the flange wall of the cap fitted over the neck of the container to be closed.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 796,221 Jorgensen Aug. 1, 1905 814,531 Gillette Mar. 6, 1906 954,897 Steininger Apr. 12, 1910 1,353,017 Bloom Sept. 14, 1920 1,413,256 Carvalho Apr. 18, 1922 1,722,909 Goltstein July 30, 1929 2,099,056 Ferngren Nov. 16, 1937 2,316,453 Ray Apr. 13, 1943 2,325,309 De Swart July 27, 1943 2,358,270 Wild Sept. 12, 1944 2,387,978 Casey Oct. 30, 1945 2,581,647 Genovese Jan. 8, 1952 2,582,489 Krueger Jan. 15, 1952 FOREIGN PATENTS Number Country Date 558,998 Great Britain Jan. 31, 1944

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