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Publication numberUS2196785 A
Publication typeGrant
Publication dateApr 9, 1940
Filing dateSep 24, 1937
Priority dateOct 13, 1936
Publication numberUS 2196785 A, US 2196785A, US-A-2196785, US2196785 A, US2196785A
InventorsTakiguchi Ei
Original AssigneeTakiguchi Ei
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rubber stopper for bottles, jars, vessels, and like containers
US 2196785 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

25 of stepped Patented Apr. 9, 1940 UNITED STATES 2,196,185 v RUBBER s'rorrnn Fon BOTTLES, mns,

vEssELs, AND LIKE CONTAINERS Ei Takiguchi, Tokyo, Japan Appiieauon september 24, 1937, serial No. 165,574 In Japan October 13, 1936 1 Claim.

Rubber Stoppers for bottles, jars, vessels, asks and the like have been used heretofore, as they are easily moulded at cheap cost, and close the containers in a tighter and more hygienic mans ner as compared with Stoppers of other materials. They have, however, a material defect in that they can never be inserted into the mouth of bottles, if the diameter of their inserting parts is a little larger than the inside diameterl of the lo mouth of the bottles, because the cylindrical rubber body, either solid or hollow, is not uniformly compressible to diminish the diameter on account of its softness and elasticity, even though it may be deformed irregularly to some extent.

The object of the present invention is to remove the above defects in rubber Stoppers by providing the inserting part with a bore to form a cavity opening into'the bottles and the like, the peripheral surface of which is channeled length- 20 wise to make the desired number of linear grooves.'

Another object of the invention is to render the -insertion and drawing of the rubber stopper easy and the closing of containers tighter by means projections with conical surfaces which are constructed on the outside of the inserting part of the said stopper.

An example of the invention is hereafter described with reference to the accompaning draw- 30 ing, in which Fig. 1 shows in elevation partly in section one form of stopper used in constructions according to the invention and Fig. 2 is a section on line A-A of Fig. l. The inserting part I, of the rubber stopper body ,is provided 35 with stepped projections having conical surfaces 2 surrounding the outside that will come in 'contact with the interior of the bottle neck, is bored at centre from below so as to form a cavity 3 y opening into the containers, the depth of the o cavity being suitably determined. The peripheral surface of the said lengthwise linearly, at spaced points and prefer-l ably in parallel directions with one another, so as to construct the proper number of grooves 4 of a acute angular or V-shaped section, as shown in the gures.`

According to the presen invention the inserting part l of the 'stopper can be compressed uniformly by pinching and pressing it `with the 50 fingers, because the said inserting part is constructed hollow and the surface of the' cavity 3 shrinks to some extent in 'consequence of the cavity 3 is scoopedv (Cl. 21E-47) presence of the v shaped grooves, sol that the outside diameter of the inserting part can'be easily reduced. In the present invention, therefore, it is not only very easy to insert it into the mouth of a bottle when the inside diameter of the bottle 5 is.equvalent to that of the cork, but it fits to several kinds of bottles having mouths of v arious diameters, as it can be inserted into the mouth even if its diameter may be little larger than those of the latter. A

Moreover, the rubber stopper of the present invention may be inserted into and drawn out of the mouth in a more efficient manner and the container closed in a tighter manner by the presence of the stepped projections with conical surfaces surrounding the outside of the inserting part, because the contacting surface or resistance between the stopper and the bottle mouth wall is remarkably reduced and the tip of each projection sticks to the wall very tightly.

The stopper body specically includes cylindrical end portions the inner end portion of which is slightly smaller in diameter than the outer end portion as well as an intermediate portion tapered towards the inner end portion. The inner end l portion and the intermediate portion constitute the inserting part of the stopper body.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

A stopper for bottles, jars, vessels and the like containers comprising a rubber body, having cylindrical end portions with the inner end portion slightly smaller in diameter than the outer end portion and having an intermediate portion vtapered slightly from the outer end portion to the inner end portion and provided with annular stepped projections also tapered toward the inner end portion, the inner end portion and the intermediate portion being longitudinally and concentrically bored to the outer closed end por tion so as to provide a cavity which opens within the container, the peripheral surface of the cavity beingv scooped lengthwise at suitable intervals to provide the desired number of grooves having a V-shaped section whereby to permit of a uniform compressing of the inner end portion and the intermediate portion when the stopper body is inserted in the mouth ofv a. container.

1n 'rendita-:151.y

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2505270 *Apr 6, 1945Apr 25, 1950Cameron Iron Works IncValve
US2532373 *Jul 6, 1946Dec 5, 1950Peter SchlumbohmCocktail shaker
US2580762 *Apr 28, 1950Jan 1, 1952Joseph R GrenierProtective closure
US2583162 *Jul 27, 1950Jan 22, 1952Verel Evelyn IStopper for containers
US2604225 *Aug 7, 1947Jul 22, 1952Goodrich Co B FExpansible plug closure
US2644609 *Mar 20, 1950Jul 7, 1953Foss Curtis DVent plug
US2648953 *Jun 22, 1951Aug 18, 1953Hofman Lab IncLiquid helium container with insertable heat exchanger
US2657817 *Aug 10, 1950Nov 3, 1953Victor AlvearPlastic bung for beer barrels or the like
US2663451 *Oct 10, 1951Dec 22, 1953Yarnall Chandler PClosure plug
US2669370 *Jul 28, 1950Feb 16, 1954Goodyear Tire & RubberRubber stopper
US2737205 *Aug 28, 1952Mar 6, 1956Fullerton Mfg CompanyMeans for protectively isolating internal pipe surfaces
US2756403 *May 13, 1955Jul 24, 1956Gen ElectricCombined cord connector and strain relief
US2761239 *Jan 2, 1951Sep 4, 1956Stamps Herman WAerating attachment for minnow bucket
US2872060 *Nov 8, 1955Feb 3, 1959Herbert BruneHollow stopper for bottles, tubes or the like, or artificial material, preferably polyethylene
US2886203 *Aug 1, 1956May 12, 1959Braun Goll CompanyPlastic stopper and shield for a tap rod fitting for a barrel
US2889951 *Aug 17, 1955Jun 9, 1959Bunder Glas G M B HBottle closures
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US3907110 *Jul 20, 1973Sep 23, 1975Agfa Gevaert AgArrangement for identifying customer films and evaluating means therefor
US3982649 *Jan 30, 1975Sep 28, 1976Denver Plastics, Inc.Bung for a barrel
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US6494463Nov 6, 2000Dec 17, 2002Kurt J. RankPlug for sealing more than one size of hole
US8833398 *Jan 30, 2012Sep 16, 2014Clean Planet Mfg. & Labs, Inc.Environmentally-friendly hose plug
US20110274515 *Jan 14, 2010Nov 10, 2011R & B Marketing CorporationPlugs With Dimensional Tolerance Absorbing Hold-In Surfaces
US20120192980 *Jan 30, 2012Aug 2, 2012James WilliamsEnvironmentally-friendly Hose Plug
DE958989C *Jul 21, 1951Feb 28, 1957Herbert Bruene Dr IngStopfen fuer Roehrchen, Flaschen od. dgl.
DE964630C *Nov 1, 1950May 23, 1957Buender Glas GmbhVerschluss fuer Tablettenglaeser
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DE976526C *Oct 19, 1952Oct 24, 1963Ver Aluminiumfabriken RistauVerschlussstopfen mit Abstandhalter
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WO2006007455A1Jun 17, 2005Jan 19, 2006Bard Inc C RTissue collection lid for a specimen cup
WO2010083304A1 *Jan 14, 2010Jul 22, 2010R & B Marketing CorporationPlugs with dimensional tolerance absorbing hold-in surfaces
U.S. Classification215/355, 220/DIG.190, 138/96.00R
International ClassificationB65D39/00
Cooperative ClassificationY10S220/19, B65D2539/003, B65D39/007
European ClassificationB65D39/00G3