US833332A - Can-closure. - Google Patents

Description

No. 833,332. PATENTED OCT. 16, 1906.

J. J. MOSHE. CAN CLOSURE.

APPLICATION FILED JULY 11, 1904.

I [I I I I I I I I I I II 9 6 UNITED" STATES PATENT OFFICE.

CAN-CLOSURE.

Specification of Letters Patent.

Patented Oct. 16, 1906.

-lp lication filed July 11, 1904. Serial No. 216,005.

To all whom it concern:

Be it known that I, JOSEPH J. Mosnnfi a citizen of the United States, residing in West Covington, in the county of Kenton and State of 'Kentucky', have inventedoertam "@new and useful Improvementsin Can-Closures, of which the following is 'a specifica- =tion/ i It is thechjectof invention to. provide nghew and'iinprovedclosure for cans; and invention .will be readily understood from the following description and claims and from the drawings, in which latter- Figure 1 is a side elevation of a can provided with my improved device, showing the same in closed relation. Fig. 2 is an enlarged central vertical section ofmy improved device, partly broken away, illustratingthe can and its cover in relation-for apolying the cover to the can. Fig. 3 is a similar view of the same, showing the cover in closed relation. Fig. 4 is a sectionaldetail hereinafter referred to.

represents the body of the can. 2 is a rim portion. This rim portion is preferably an annular ring suitably secured to the top of the can. It preferably has an outer'depending-wall 3 and an inner depending wall 4-for forming a groove into which the upper edge mg a head or channel within which a packing of the can-body takes and in which it may be/ secured by any suitable means. The rim portion projects inwardly, as shown at 5, and me an inwardly and upwardly projecting lip n, forming a mouth, preferably of the formlof an upright frusto-cone, for receiving the cover 7.

The cover is formed with a transverse web 8, from which a preferably annular wall 9 projects upwardly andoutwardly, preferably tapering or in the form of an inverted frustocone adapted to be received within the uprigilt-frosto-cone-formed mouth of the can. The mouth of the can and side wall of the cover are tapered in opposite directions, the cover forming a plug for the mouth.

The n per edge of the wall of the cover is preferab y curled to the side outwardly, as shown at 10, rcversely bent toward said wall, as shown at 11, and provided with a slight upward inner curl, as shown at 12, for form- 13 is adapted to be held, This packing or seal is preferably a sticky composition, but slightly subject to evaporation.

The reduced end of the plug or cover is re ceived bythe outwardly projeeted fr e end presented to the plug when the latter is in serted, the plug tapering toa size larger than the diameter of the outer end of'the mouth when the latter is in normal or ungpread condition, the mouth being resilient. I pon pressure being applied to the top of the cover the cover is forced into the mouth and caused to hug the lip of the mouth, the taperingsides of the depending part of thecover spreading the same and in turn being squeezed thereby for causing a close joint be tween the plw and lip, extending a substantial distance longitudinally of the meeting inner and outer faces of the plug-and lip, respectively. The outer edge of the lip is preferably the cut edge of the material of which the rim portion is con1posedas tin, for instance}. The out edge of the lip affords additional resiliency to the lip increasingly 'toward'the-outer edge of the lip for ermit ting the outer edge to spread relative y more than. the inner portion of the lip and permitting a greater belt of contact between the plug and lip. Forcing the tapered cover within the outwardly-projected lip causes the inner face of'the lip to conform to the ,contour of the outer face of the cover, the lateral pressure of the lip acting against the wall of the cover for seeking alid finding a,

:close fit. The mouth of the said Jim portion 2 is formed by an annular wall of the sheet metal composing the rim portion and terminates in the cut edge of the said lip which extends upwardly above the horizontal plane of the upper edge of the canbody for forming wide belt of contact with .the plug" after insertion of the latter. By the insertion of the plug in the manner explained that part of the upright-fruStoconical mouth above the horizontal plane of the upper edge of the can-body is spread by the inverted frusto-eonieal annular wall of the plug to form a widened seat for the latter,

whereas said mouth below said horizontal plane is retained in upright-frusto-conical shape, acting with a reiiexing tendency upon said seat, thus aiding ,in maintaining the hugging action and close lit of the mouth with the plug, the upright-irustoconical sh: peof the mouth. causing the cut edge of its .ip to be spread to considerable extent for causing an especially good joint at said. lip.

inturn'ed or reflected edge of the bead.

oftlie cover refel'ahly distanced i Enrn thg outer face of the tapering Wall of the cover sli tly less than the thickness of the lip. W en the outer ed e of the lipreaches the inturned edge of t e bead of the cover, it makes contact with this inturned edge,'preferably slightly spreading it and causing an additional joint or close fit between the inturned edge of the bead and the outer face of the lip and in turn causing the inner face of the lip to hug the outer face of the wall of the cover more-closely.

Further depression of the cover causes the upper edge of the lip to take into the packing, the cut ed e of the lip having joint formed therewith y the acking., forming a seal within'the bead of tne cover about the mouth of the can for forming an additional tight joint or closure for the can.

The entry of the lip into the body of packing also compresses the body of packing by reason of the packing being confined within the head, the exit from the bead being closed by the entrance of the lip therein.

.If desired, the parts may be made of such relative size and the pressure exerted may be such that the up er edge of the lip is caused to curl slightly within the bead, as shown at 14 in Fig. 4. I v

The cover may be readily removed or pried ofi' b a suitable instrument inserted under the ead and may be used repeatedly Without injury for gradual consumption of the contents of the can or package by the user. My improved device is sim le, is caable of being cheaply made, an 1 provides or secure closing and sealing of the can or package. i

Having thus fully described my inv ntion, what I claim as new, and desire to secure by Letters Patent, is-

1. A-can having-an='-annular rim portion,

, said rim portion formed with an inner lar wal below the horizontal (ge of the-can-bod-y and an inwardly tapering annuupright f-rusto ip extending groove extendi plane of the top -e inner u wardly an in the form. of an cone' having an upper cut above said to edge of said can-body, said cut lip forme by the cut edge of the sheet metal of said wall, with a plug formed of a transverse web from which an annular wall tapers upwardly and outwardly. in the form of an inverted frusto-cone, having an annular outer bead, the portion of smaller diameter of said inverted-frusto-conical plug having an outer diameter equaling the inner diameter of the part of smaller-diameter-oi' said u right-frusto-conical lip, the said. portion 0' smaller diameter of the former being received by and engaging the part of smaller diameter of the latter, said inverted-frustoconical plug spreading said lip and mouth above the horizontal plane of said top edge of said can-body for formin a seat for said plug above said top edge or said can-body, with said annular wall of said mouth maintained in upright-fru'sto-conical shape below said horizontal. plane of said top edge of said can-body when said plug is seated, substan tially as described. 7

2. A can having an annular rim portion,

said rim portion formed with an inner groove extending below the horizontal plane of the top ed e of the can-body and an inner upwardly an inwardly tapering annular Wall in the form ofan upright frusto-cone having an upper cut lip extending above said toped g'e of said can-body, said out lip formed by the cut edge of the sheet metal of said wall,

with a plug formed of a transverse web from which an annular wall tapers upwardly and outwardly in the form of an inverted irustocone having an annular outer bead, the portion of smaller diameter of said invertedfrusto-conical plug being received by and engaging the part of smaller diameter of said can-body when said plug is seated, and

packing in said annular outer head of said plug, said lip taking under said bead and engaging said packing, substantially as described.

In testimony whereof I have signed name hereto in the presence of two subscribing witnesses. JOSEPH J. MOSER:

Witnesses: 1 HERBERT F.1'IA-RDEN, HENRY N. BAUER.

r said plug

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