US2967000A

US2967000A - Container and combined opener

Info

Publication number: US2967000A
Application number: US771510A
Authority: US
Inventors: George W Burns
Original assignee: Individual
Current assignee: Individual
Priority date: 1958-11-03
Filing date: 1958-11-03
Publication date: 1961-01-03
Anticipated expiration: 1978-01-03

Description

- 1961 G. w. BURNS 2,967,000

- CONTAINER AND COMBINED OPENER FiledNov. 3, 1958 I INVENTOR AT'TORIVF) United States Patent CONTAINER AND COMBINED OPENER George W. Burns, 27224 Ursuline Drive, St. Clair Shores, Mich.

Filed Nov. 3, 1958, Ser. No. 771,510

2 Claims. (Cl. 220-54) This invention relates to a container and combined opener and more particularly pertains to a can and integral opener for providing pouring apertures without the use of a can opener tool.

Various container and can openers singly or in combination have been employed heretofore to facilitate the opening of cans and containers for pouring, however, the several devices of the prior art have not proven entirely satisfactory inasmuch as they are complicated in design and construction, expensive to manufacture, and difficult to use. 7

With the foregoing in view, the primary object of the invention is to provide a can and integral aperture forming opening device which is simple in design and construction, inexpensive to manufacture, easy to use, and easy to integrate in the manufacture of the can or container.

An object of the invention is to provide a can having a cap type top with a peripheral collar partially telescoping with the can side walls so as to provide an exposed edge for tearing the opening into the top portion.

An object of the invention is to provide a key portion having a key integral with the top and collar and an extending key tab providing a hand grip for the user.

An object of the invention is to provide a key portion for tearing out a portion fo the can top wherein the key tab portion is formed as an extension of can top and tearing portion is formed as a common portion with the can top delineated by a reduced thickness area referred to as a scored tear line.

An object of the invention is to provide strength points on the tab portion extending beyond the scored tear line of the common portion of the key, top, and collar for providing a lever-wise extension beyond the apex of the tear line described on the collar cylinder.

An object of the invention is to provide an embossed or corrugated portion in the tab portion of the key for leading strength characteristics to the key and extending points to prevent the key from bending during the tearing operation so as to effect tearing with a minimum of effort.

These and other objects of the invention will become apparent by reference to the following description of a can and integral opener key emboding the invention taken in connection with the accompanying drawing in which:

Fig. 1 is a perspective view of a can emboding the integral key opener shown in the sealed condition.

Fig. 2 is a view similar to Fig. 1 showing the key in the open position.

Fig. 3 is a partial cross sectional view of Fig. 1 taken on the line 33 thereof, showing the key on one side of the can in cross section and on the other side of the can in side elevation.

Fig. 4 is a partial cross sectional view of the can after the key portion has been removed taken on the line 4-4 thereof of Fig. 2; and

Fig. 5 is a view of can tops and integral keys shown nested for the purpose of punching same from strip material without the loss of stock.

Referring now to the drawing wherein like numerals refer to like and corresponding parts throughout the several views, the integral can opener and can disclosed therein to illustrate the invention comprises a can 10 having cylindrical side Walls 11, a bottom 12, a top 13, and

a tear-out key 14 on either side of the top 13.

More particularly the top member 13 comprises a disc 20 and an annular collar 21 formed integral therewith and telescoping the side walls 11 of the can 10 and, as is well understood in the art, welding or soldering material is disposed between the collar 21 and the side walls 11 to efiect a seal.

The key 14 has a tear-out portion 22 common with the collar 21 and disc 20 and delineated therefrom by the cross-sectional reduced thickness area or scored tear line 23 which defines the remainder of the disc 20 and the collar 21 from the common area 22 of the key 14 and the top 13. The key 14 has an extending tab 24 formed integral with the can top disc 20 and collar 21 and leads from the common tear-out portion 22.

In the preferred embodiment of the tab as shown, the tab 24

side edges

25 and 26 diverge upwardly to the

points

27 and 28 and thenvthe side edges 29 and 30 converge fromnthe

points

27 and 28 and join the collar 21 at the point of juncture of the scored tear line 23 and it is to be noted that the tab 24 is embossed or otherwise corrugated as at 31 to lend strength characteristics to the tab to prevent the tab from rolling or bending under the twisting stresses exerted by the user in tearing out the common portion 22 from the top 13, disc 20, and collar 21. It is to be noted that the tab 24 is cylindrical in conformation to fit around the can 10 so that the

points

27 and 28 wrap around the can and extend circumferentially, outwardly of the scored tear line 23 so that upon the user grasping the tab and twisting same the

points

27 and 28 lying outwardly of the beginning of the tear line 23 furnishes an extended lever-like portion to exert a force from an outward position inwardly towards the tear line to effect easy tearing of the common portion 22 out of the top member 13 collar 21, and disc 20 and it is to be noted that when the key 14 is torn from the can 10 that the aperture 40 communicates with the interior of the can. It is to be noted from Fig. 5 that the top members 13, discs 20, collar 21 and tab 14 can be easily stamped out in one operation without loss of stock or required additional operations.

The inventive can and opener key with these features constitutes a compact, durable, and neat appearing mechanism easily operated to open the can rapidly Without the necessity of an opener tool and the can opener combination presents an attractive appearance and constitutes a highly useful article.

Although but a single embodiment of the invention has been shown and described in detail, it is obvious that many changes may be made in the size, shape, detail, and arrangement of the various elements of the invention within the scope of the appended claims.

I claim:

1. A can opener device formed integral with the can particularly suitable for cans having cap like ends such as used for evaporated milk comprising a can having side walls having opposite ends, a bottom member sealably attached to said side walls over one said end, a top member having a disc abutting said can other end and a peripheral collar, telescoping over said can side walls on the outside thereof, means sealably connecting said top disc and collar to said side walls, a tear-out key formed integral with said top member composed of a projecting gripping-levering tab portion extending beyond said collar and a tear out portion constituting a common part of said collar and disc dilineated by a scored tear line; said key projecting tab portion being embossed for strength characteristics topreventbending so as, to assist lever, wise in tearing the common part out vofi theflto fi and collar, to forman opening, in the cantop cornmunicatingwith the can. interiorpsaid key tab being,,rnanually g'ripable, and twistable to tear out the common part-along the scored line ;to form an opening in the, can toplwi th out, canopening tool; said key tab .havi n g side edges angularlyadiverging toward said collarand then converging toward said collar and joining with said collar on an acute angle with said collar said scored tear line leading fromtsaid converging tab sides and collar juncture as ac'ontinu'ation of said convergence; said diverging-converging tab sides forming a strong point in the key tab projecting outwardly of said tear line on either side so that twisting of saidkey draws said points inwardly directing tearingforces to said tear line and. therealong to .provide. outwardly-originated, inwardlydirected tearing forces on the tear line exerted by twisting said key tab.

2. A can having opener means formed integral therewith for making a communicating opening to-the can interior comprising a can having side walls, a bottom Wall on said side walls, a top on said can having ,a disc terminating in a peripheral collar telescoping over said side walls, means such as solder, or welding material sealably connecting said top disc andcollar to :said side walls, ,.a key tab formedw integral ,with said. top discand collar extending from said collar, and an area ofreduced mate.-

tear-line leading from said key tab at one side thereof through said collar, over a portion of said disc, and again rial thickness in said disc and collar delineating a scored through said collar to the other side of said key tab with the area of said disc and collar enclosed by said scored-tear line constituting the key tear-out portion in tegral with said tab; said key tear-out portion delineated by said tear line being common area with said disc and collar; said key tab constituting a lever for twisting said tear out common portion at said score line to tear said disc and collar materiaLirl the; reduced area.thereof to separate said cornmonarea from the remainderof said disc and collar to provid e 'an opening in said top'for emptying the contents of said can therethrough; said key tab having side edges angularlytdivergingrtoward said collar and then converging toward said collar and joining with said collar on an acute angle with said collar; said scored tear line leading from said converging tabsides and collar juncture as a continuation of said convergence; said deverging-converging tab sides forming a strong point inthe' key tab projecting, outwardly of said tear line on either side so that twisting of said key draws said points inwardly directing tearing forces to said tear line and therealong to provide outwardly-originated, inwardly-directed tearing forces on the tear line exerted by twisting said key tab.

References Cited in the file of this patent 1 ma a N 457,456 Waeber Aug. 11, 1891 1,026,282 Schmitt May 14, 1912 2,652,165 Wever Sept. 15, 1953 n I FOREIGN PATENTS 515,093 Italy Feb. 12, 1955