US2063550A - Metal container - Google Patents

Description

Dec. 8, 1936. w. w. HODGSON METAL CONTAINER Filed April 22, 1935 2 Sheets-Sheet l W. W. HODGSON 2,0635% METAL CONTAINER Filed April 22, 1935 2 Sheets-Sheet 2 Patented Dec. 8, 1936 UNITED STATES PATENT OFFICE METAL CONTAINER William W. Hodgson, Chicago, 111., assignor to Continental Can Company, Inc., New York, N. Y., a corporation of New York Application April 22, 1935, Serial No. 17,715

1 Claim. (01. 220-27) The invention relates to new and useful im- In all forms of the invention, should the provements in a metal container of the friction frangible disc become ruptured during the manuclosure type and more in particular to a confacture of the. can, the carrier ring and ruptainer wherein a frangible sealing member is tured disc could be removed as a unit and re- 5 used in conjunction with a friction closure. placed Without destroying the rest of the 5 An object of the invention is to provide a container. container of the above type wherein a frangible Referring to the drawings and more in parsealing member is joined to a carrier ring and ticular to the preferred form of the invention said carrier ring is hermetically attached to said Shown in Figs. 1, 2 and 3, a container embodycan top by frictional contact therewith, whereby ing the invention is indicated at '5. The con- 10 said carrier ring and frangible member may be tainer is preferably of metal comprising a body removed as a unit and replaced should the portion 6 having a bottom end i double seamed frangible member become ruptured during manthereto as indicated at 8 and a top end 9 secured ufacture of th containep thereto by the double seam H]. The top end 9, i

Referring to the drawings: or can top as it is usually called, has a central 15 Fig. 1 is a view partially in side elevation and Opening W th a vertical friction wall I! surpartially in section of the preferred form of the rounding Said p A friction closure l2 invention is used for closing the container, said friction Fig 2 i an enlarged ti l i of pgrclosure having a vertical friction wall l3 which t of Fig 1. is adapted to be forced into engagement with 20 Fig 3 is an enlarged sectional View of Fig 1 the friction wall H of the can top. The closure showing the carrier ring and sealing disc therehas a laterally e tehdin bead at its pp for removed as t end beneath which a tool may be placed for Fig. 4 is an enlarged sectional view of a removing t Same from the container.

5 slightly modified form of container embodying The can top 9 has t e portion I5 thereof the invention. shaped to form a retaining recess l6 which is Fig. 5 is an enlarged sectional view of a furadapted receive a Sealing compound A ther modification embodying the invention carrier ring [8 is formed with a wall l9 which The invention relates particularly to a metal is adapted to c ionally engage the wall ll container of the friction closure type having a of the can top whereby the Ca i ring and 30 frangible sealing member used in conjunction the can top We firmly held her as a unit. therewith. The container comprises a body por- The Carrier ring has a portion overlying the tion preferably of metal and having ends double recess 95 formedin the can l and Contacting seamed thereto, one f Said ends being in the with the sealing material I! placed therein so form of a can top having t l pening and as to provide an hermetic seal between the car- 35 a, vertical friction wall surrounding said opening. Tier Ting and the can D- A f a b ea The can top has a portion of the metal adj disc 20 is provided for closing the opening in cent the friction wall shaped so as to form a ea d carrier ring. The lower portion of said ring retaining recess for sealing material. A carrier 15 Shaped so as to form clamping b rs ring is provided for the container having a porand Z for pp g the periph r e portion 40 tion thereof frictionally engaging the vertical 23 of the Sealing disc and fixed-1y Securing the n 0f th can top and portion thereof Over same to the carrier ring. A sealing compound lying the recess formed adjacent thereto. A 24 plaiced between the edge portion of the frangible sealing disc is used for closing the Sealing and the l m members of the opening in the carrying ring, the lower portion earner rmg for.estaphsmng an hermetic Seal 45 of said ring being so shaped as to clamp the between h t (115 and the carr1er.ring' peripheral edge of the Sealing disc for joining The sealing disc 1s attached to a carrier ring the same thereto A sealing compound is interand the mug placed m can top by the manu" facturer. The container is filled by the packer pPsed between the earner rmg and the seamlg through the bottom end, after which it is closed. (118C and between the can top and the carrier If the frangible sealing disc becomes ruptured ring for herme a closing the contamer, and during the manufacture of the container, the a friction closure which is adapted to overlie carrier ring can b r ched through th b tt and protect the frangible disc against accidental of th container, forced out and replaced by rupture is used for further closing the container. another. This permits the salvaging of the 55 greater portion of the container when the frangible disc is accidentally ruptured.

In the modified form of the invention shown in Fig. 4 of the drawings, the construction of the can top differs slightly from that shown in Figs. 1, 2 and 3. The portion I51) of the can top is extending inwardly at right angles to the friction wall ll thereof and an annular recess Ila is formed therein which is spaced inwardly from said friction wall. The recess Ila is adapted to receive a sealing compound lfia and a portion of the carrier ring 3 is shaped as indicated at l8a to conform tothe recess and contact with the sealing material for establishing an hermetic seal between the retainer ring and the container top.

In the modified form of the invention shown in Fig. 5 of the drawings, the can top 9 is formed with a recess ill) for receiving the sealing compound located between the vertical friction wall H and the can body. The friction wall I9 of the carrier ring has a portion 1% which extends laterally from the upper end thereof and overlies the recess l'lb. This portion of the carrier ring is shaped so as to contact with and compress the sealing material within the recess, thus establishing a tight seal. The outer peripheral edge lee of the carrier ring is dimensioned so as to have frictional engagement with the vertical wall 912 of the can top, thus firmly securing the carrier ring to the can top and in contact with the sealing material. By the construction shown in this modified form of the invention, the clamping members for the frangible sealing are brought closer to the friction wall H of the can top and therefore a larger opening may be provided in a can of standard dimensions.

When it is desired to open the container, the friction closure is pried out and the frangible sealing disc is cut away by a knife or other sharp instrument. The friction closure may be used for reclosing the container after the inner seal has been removed. If a customer when purchasing the container finds the inner seal ruptured, it is an indication that the container nas been tampered with and possibly some of the contents removed, or replaced with a substitute, or diluted. Furthermore, while a friction plug closure forms a fairly tight seal, the use of a frangible metal seal in the construction as described produces an hermetically sealed package.

From the above, it will be apparent that a container of the friction closure type has been devised wherein an hermetic seal hasbeen established and wherein a carrier member and sealing disc have been formed as a unit which may be replaced should the frangible seal become ruptured during the manufacture of the can, thus saving the necessity of scrapping the remainder of the container.

It is obvious that minor changes in the details of construction and the arrangement of parts may be made without departing from the spirit of the invention as set forth in the appended claim.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is:-

A metal container comprising a body portion having a can top secured thereto, said can top having a central opening and a vertical friction wall surrounding said opening, said can top having an inwardly projecting ledge at the lower end of said vertical friction wall shaped so as to provide a retaining recess for a sealing material, a, carrier ring frictionally engaging the lower portion of said vertical friction wall of the can top and held thereto in contact with the sealing material in said recess, the upper portion of said vertical wall being adapted to receive a friction plug, said carrier ring having a portion thereof extending inwardly beyond the inner edge of said ledge, a frangible sealing disk for closing the opening in said ring, the inwardly projecting portion of said ring being shaped so as to provide a recess for a sealing material and so as to clamp the peripheral edge of the sealing disk against the sealing material in said recess.

WILLIAM W. I-IODGSON.

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