US1463892A - Closure for jars, tumblers, and other receptacles - Google Patents

Description

Aug. 7, 31923. ASSQZ A. INGRAM ET AL CLOSURE FOR JARS, TUMBLERS,` AND OTHER RECEPTACLES Filed June 23, 1920 Patented ug., 7, i923.

unirse sraras Meath PATENT @Ftftd ALFRED INGRAM AND HARRY INGRAM, OE' BROOKLYN, YORK, ASSIGOES, BY

MESNE ASSIGNMENTS, TO ENEL-ATLAS GLASS COMPANY, OF WHEELING, VIRGINIA, A. CORPORATION OF WEST VIRGlNIA.

WEST

CLOSURE FOR-LABS, TUMBLERS, OTHER RECEPTACLES.

.apparanni inea aan@ 2a,

To all whom t may concer/n.: l

Be it known that we, ALFRED INGRAM and HARRY INGRAM, citizens ofthe United States, and residents of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Closures for Jars, Tumblers, and Other Receptacles, of which the following is a specification.

rll`his invention relates to improved means for closing the tops of jars, tumblers and other receptacles bymeans of applied caps and gaskets, which, in. accordance with our invention, maybe held in sealing position either by atmospheric pressure, that is, by what is commonly known as the vacuum. sealing process, or merely by the gripping action of the gasket when itis in position surrounding the upper side wall oi the receptacle. a

ln addition to other features of' advantage, our invention provides means whereby a closure cap of yielding and thin material and capable of ready removal from a jar may be usedwith entire success in connection with a side-seal gasket encompassing the upper outer side edges of the jar, and whereby also the top of the cap may be prevented from wrinkling and also from bulging upwardly at its middle portion due to the action of air trapped within the jar or from other cause. When a thin cap is placed air-tight on a jar holding even cold food products the air trapped within the jar is liable to bul e the top of the cap upwardly and not on y impart an undesirable appearance to the package but create an 1mpression that the contents of the jar are in a state of fermentation.

ln accordance with our invention we produce a thin closure cap in one piece ofmaterial which is preferably of reasonably tender character, as thin sheet aluminum, capa-l ble of being torn from the jar, said cap having a depending annular flange or skirt portion containing an annular recess for a side-seal gasket, and with this cap we emplo a stili disk, as, for, illustration, of tin, which tits within and against the inner surface of the top of the cap, and also a ring or band gasket which is received into sai annular recess below the outer edges of said disk and which on the application of the of the rim o the jar with sealing edect.

The tin disk protects and reinforces the top of the cap and resists the action of entrapped air which might otherwise bulge the said top upwardly, and said'disk -also tends to.

keep the top of the cap smooth and also from being dented in when the jars are stacked one on the top of another.

The invention will be fully understood from the detailed description hereinafter presented, reference being had to the accompanying drawings, in which:

Fig. l is a central vertical sectionrthrough a partly finished cap and inner disk ready for assembly preparatory to the skirt of the cap having a beading or annular recess rolled therein to confine the disk within the cap` and to receive a sealing' gasket;

ig. 2 is a central vertical section through the finished cap, with a gasket shown therebound against the side walls` in in its initial position preparatory to being deformed and pressed into the beading of the cap on the application of the cap to a receptacle to seal the same;

F 1g. 3 1s a corresponding section, on a larger scale,'showing the closure applied to and sealing a receptacle, the receptacle being shown as partly broken away and in sectiong" Fig. 4 is a side elevation of the closure and may be regarded as taken from either side of lliig. 2, and

Fig. 5 is a central vertical section through an embodiment of our invention shown applied to a tumbler or jar havingplain sides instead ot the annular shoulder shown on the jar present/ed in Fig. 8.

lin the drawings, referring to Figs. l to 4 inclusive, 10 designates the finished cap, l1 a gasket held therein, 12 a disk of tin or the like closely fitting within the cap and against the inner surface of the top thereof and extending above the upper edge of said gasket, and 13 ajar or similar receptacle having a. thickened rim portion la which adordsat its lower edge an annular Shoulder 15 odset from the side of the jar. lin Fig. l we show a partly formed cap numbered 16 and which may be regarded as acap-blank, and in Fig. l We also show a completeddsk 12 to be nally held within titi whose upper portion is outwardly bea-dedv or offset to, form an inner annular recess 22 and whose lower portion extends downwardly from thevertical plane of the inner edge of said recess and oppositely disposed tear-oft1 tabs or pull-members 23 which extend downwardly from the lower edge of said skirt ortion, an annular inwardly and downwardly converging gasket-supporting shoulder 24 being formed at the lower edge.

of said recess and the entire cap being produced from an integral blank of aluminum or other suitable material.

The inserted reinforcing disk 12 will also be formed ot an integral blank and match the inner surface of the top 20 of the cap, and said disk may be of tin and of greater thickness than the material of the cap. When lthe top of the cap is annularly shouldered, as shown in Figs. 2 and 3,' the disk will have a' like formation so as to regi-ster with said top.

In the production of the iinished cap from 4the blank 16 shown in Fig. -1, we first introduce into said blank the disk 12 and `then form in thevup-per. end of the skirt 18 of said blank 16 the recess 22 of 'the iinished cap, the formation of this recess being performed by'a rollingoperation or other convenient' method and resulting in a slight reduction in the diameter of the top of the blank 16 and in a slight shortening of the skirt 18 and whereby also the disk 12 becomes snugly held within the top of the blank and will not escape fro'mthe blank during the further handling thereof. IThe `extensions 19 may then vbe bent downwardly to complete'the cap ready to receive the gasket and be applied to the jar.

The gasket 11 is initially given the position shown in Fig. 2, in which it. may be seen that the gasket does not then lill the recess 22 of the cap land has a downwardly and outwardly beveled lower edge opposite to the downwardly and inwardly inclined shoulder' 24: ot' the cap and that a portion of the gasket stands in the path of the outer edges of the rim-of the jar to which the cap is to be applied. Upon the application of the cap to the jar 13, the rim of the jar meeting the inwardly projecting portion ot the gasket will .act against and deform the gasket to lill the recess 22 and enter into li' ling relation to the enter side wall ot' the projection 1li on the jar, with the re aff-.eases .sult of tightly sealing the jar. When the `where they will not form objectionable projections, and in. addition the spinning of said tabs under said shoulder serves to further lock the cap on the jar. The removal of the cap from the jar may be effected by the pulling upwardly of the tabs 23, the metal of the cap being torn by this operation which may be readily performed since the metal used in the production ofthe cap may, in accordance' with our invention, be of comparatively tender character, as thin sheet aluminum.

In Fig. 5 we show a modified form of our invention applied to a jar or tumbler 25 having plain sides, and therein 26 designates the cap having a' plain lat top, a skirt portion having a recess 27 corresponding with the recess 22 hereinbefore described, and tear-off tabs 28. 1Within the cap 26 is a strong disk 29 and within the recess 27 is a gasket 30, which corresponds with the gasket 11 shown in Figs. 2 and 3. The top of the cap 26 is plain and flat, and hence the disk 29 is plain and flat and in this respect only differs from the disk 12 hereinbefore described. The cap 26fis applied to the tunibler or jar 25 in the same manner that the cap 1() is applied to the jar 13 and with the saine sealing effect and the same facility forvremoval. Since the tumbler or jar 2'5 has plain sides as distinguished from `the taper-surfaced rim 14, there is no oc casion for disposing of the tear-oiln tabs 28 otherwise than by allowing them to extend downwardly close tothe sides of the tumbler. as shown in Fig. 5.

ance of the closure and adds materially to the strength of the top of the same. as hereinbefore explained. The cap 10 is in one integral piece and presents a continuous or unbroken top, which is protected by the reinfoice disk and prevented Jiiifoin undue bulging action in either'direction.

What we claim as our 'invention and desire to secure by Letters Patent, is:

1. in combination with receptacle, a closurel thereror comprising oi. thin,

Lacasse exible and comparatively tender material having a depending skirt portion containing in its upper part an annular recess which extends around the upper side edges of the receptacle at the mouth thereof, a metal reinforce disk applied within the top of said cap and extending outwardly over the lip of the reecptacle and the top of said recess, and a gasket within said recess and below the outer edges of said disk, said gasket being deformed to engage with sealing effeet the wall of said recess, the lower surface of the outer peripheral portion of said disk and the side surface of the receptacle about the mouth thereof.

2. In combination with a receptacle, a closure therefor comprising a cap of thin, flexible and comparatively tender material having a depending skirt portion containing in its upper part an annular recess which extends around the upper side edges of the receptacle at the mouth thereof, a metal reinforce disk applied within the top of said cap and extending outwardly over the lip of the receptacle and the top of saidv recess, and a gasket within said recess and below the outer edge of said disk, said gasket being deformed to engage with sealing effeet the wall of said recess, the lower surface of the outer peripheral portion of said disk and the side surface of the receptacle about the mouth thereof, and said cap havble and comparatively tender material havinga depending skirt portion containing in its upper part, around the upper side edges of the receptacle about the mouth thereof, an annular recess at whose lower edge is a downwardly and inwardly converging shoulder, a reinforce disk applied .within the top of said cap and extending outwardly over the lip of the receptacle and the top of said recess, and a gasket within said recess below the outer edge of said'disk andinitially having a downwardly diverging lower edge and being projected in part in the path of the rim of the Areceptacle opposite to said shoulder, said gasket being deformed to engage with sealing effect the wall of said recess, the lower surface of the outer peripheral portion of said disk and the side surface of the receptacle about the mouth thereof.

4. In combination with a receptacle havin a laterally projecting side rim-portion a Ording at its lower edge an inwardly set shoulder, a closure therefor comprising a cap of thin, flexible and comparatively tender material having a depending skirt lportion containing in its upper part, around the upper side edges of the receptacle at the mouth thereof, an annular recess and below said recess an integral flexible tear-off tab projecting from said skirt portion and spun under said shoulder, a reinforce disk applied within the'top of said cap and extending outwardly over the lip ofthe receptacle and the top of said recess, and a gasket within said recess and below the outer edge of said disk, said asket engaging with sealing effect the wal? of said recess, the lower surface of the outer peripheral portion of said disk and the side surface of the receptacle about the mouth thereof, and said cap being tearable upwardly in its skirt portion at said tab-on the upward pull of the tab.

ALFRED INGRAM. HARRY IN GRAM.

Images