US1582956A

US1582956A - Key-opening can

Info

Publication number: US1582956A
Application number: US525600A
Authority: US
Inventors: John M Young
Original assignee: American Can Co
Current assignee: Primerica Inc
Priority date: 1921-12-29
Filing date: 1921-12-29
Publication date: 1926-05-04
Anticipated expiration: 1943-05-04

Description

May 4 1926.

J. M. YOUNG KEY OPENING cAN Filed Deo. 29, 1921 Patented May 4, 1926.

UNITED STATES 1,582,956 PATENT osi-ica JOHN M. YOUNG, OF NEW YORK, N. Y., ASSIGNOR TO AMERICAN CAN COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

KEY-OPENING CAN.

Application filed December 29, 1921.

To all wlw/m, t may concern:

Be it known that I, JOHN M. YOUNG, a citizen of the United States, residing in New York, in the county of New York and State of New York, have invented a new and useful Improvement in Key-Opening Cans, of which the following is a specilication.

My invention relates in general to oonta-iners and more particularly to key-opening cans provided with a side tearing strip extending ciroumferentially about the body and having a tongue extending from the body at its side seam for engagement by a key to remove the tearing strip.

Key opening cans of this character ordinai-ily have the top secured thereto in a double seam, and it is desirable to have a tearing strip and the tongue, which is engaged for removal of such strip, near said double seam, or in other words, near the top of the container. The side seam by which such containers are ordinarily closed is of the lock and lap type, in which the body or wall edges are hooked together. When a tearing strip tongue is provided at this seam, it is the practice to leave unhooked that portion of the seam from which the tongue extends and difliculty has been experienced in securing the body edges above the tongue 30 together in the lock seam in such manner thatl they will hold during the usual soldering operation upon the side seam, this difficulty resulting from the short distance between the tongue and the top of the container.

It is a principal object of my invention to provide means for joining the body edges in the vicinity of the tearing strip and the tongue extending therefrom in such manner that they will be firmly held together during the soldering operation and will not interfere with the proper formation of the tongue.

A further object of the invention is the 45 provision of a container of this character in which the lock seam is dispensed with about and above the tearing strip tongue without detrimentally affecting the joint in that area, and in which a different and suit- 50 able union of the parts is provided without appreciable expense or diiculty.

Numerous other objects and advantages of the invention will be apparent as itjis better understood from the following de- 5 scription, which, taken in connection with Serial No. 525,600.

the accompanying drawings, disc-loses a preferred embodiment thereof.

Referring to the drawings,

Figure 1 is a side elevation of a container in which my invention is embodied, a part thereof being shown in section and the top with an upper flange 13 adapted to be folded l in a double seam with a cover or end flange in the well known manner. Near the top of the body and immediately beneath the double seam, when the can is closed, is a tearing strip area 14 set off by

score lines

15 and 16 and having extending therefrom on the outside of the body wall a tearing strip tongue 17 adapted to be engaged by a key or otherwise for removal of the tearing strip to open the can. The body wall is formed with a side seam 18 which throughout the greater part of its length is of the look and lap form illustrated in Fig. 2, in' which the body'wall edges 19 and 21 are respectively locked in a hook formed in the opposite edge. It has been found necessary to omit this locked or hooked joint at the point 22 at which the tongue 17 takes off from the seam, and since there is but a short space between said tongue and the top of the container when the tearing strip is positioned near the double seam in the desirable manner, there is not a suicient length of lock and lap seam atthis point to hold the body edges together during the usual process of applying solder to the exterior of the seam.

My invention obviates this difliculty by providing merely a lap seam from a point 23 beneathA the lower score line 16 to the top of the body wall, thus permitting the tongue 17 to extend straight out from the line of the seam, and by securing the edges 24 and 25 together by spot welding at 'the

points

26 and 27 on opposite sides ofthe tearing strip. ln this manner a firm union is provided at the top of the body wallA above the score lines as Well beloiv Without in any Way interfering with the proper torinetien ot the tongue 17.

lt is thought that the invention :ind many ot its attendant advantages Will be understood troni the foregoing descriptionT and it will be apparent that various Changes may be made in the torni, construction and arn rangement ot the parts without departing vtrein the spirit and seope of the invent-ion or saerilieing all ot its material advanteges, the form hereinbet'ore described being inerely a preferred embodiment thereof.

I claim:

l. eau, comprising a body scored eireinnferentially near its top to prov`de a side tearing strip adapted to be removed to open the can, said body being provided with a look and lap side seain and having e. tongue extending troni. the tearing strip at said seani1v and the part ot'. the seam above a point located beneath the lower score line being lapped but not locked end being Welded above and below the stri p set oit by said seore lines.

2. A can, Comprising a body scored eireuinterentially near its top to provide a side tearing .st-rip adapted to be reinovfezil to open the een, said body being provided tiroughout the greater part of its ,length with a lot-lr and lap side seam, and the nietal edges from a point beneath said score lines to the top ot the body being lapped merely and Welded outside the seore lines.

3. Br can, comprising a body scored eireuini'erentially near its top to provide a side tearing strip adapted to be removed to open the can, said body being provided with an intertolded side seein throughout the greater part of its length and having a tearing strip tongue extending from one ot its side edges in line with seid seam and the rnetal edges above said intertolded seein being overlapped and Welded on opposite sides of the tearing strip.

A sheet inetal Container having a seein and a tearing strip extending eeross said sein-i and set ott by score lines troni the body oi the Container at eaeh side of the tearing strip? and having a tongue, the body ot the. Container having at each side or the tearing strip an integral Welded connection between the outer sheet inetal layer ot the body and the Contiguous underiying layer torniing a part of said seain.

5. A key-.opening can, comprising e body and a top secured thereto in a double seani, said body being` eireuinferentially scored near said double seam to provide a line et severance tor reinoval of' the top, and having a. tongue extending 'from the side thereot at said score lines, said body being provided with a lap side seain in its upper port` trein which said; tongue extends.r and said seein being spot Welded at eeeh side ot the tongue to provide a iirrn union of the edges about the point ot departure of the tongue.

JOHN M. YiUNtl.