US1521653A - Key-opening can - Google Patents

Description

H. SCHRADER KEY OPENING CAN Filed Nov; 12,

I l/l l III , Z/vnewr R I I I I I IIII Patented Jan. 6, 1925.

UNITED STATES 1,521,653 PATENT OFFICE,

HERBERT SCHRADER, O15 WHEELING, WEST VIRGIlTIA, ASSIGNOR OF ONE-HALF T MARTIN L, HUNKER, OF WHEELING, WEST VIRGINIA. v

KEY-OPENING CAN.

' Application filed November 12, 1923. Serial No. 674,136.

To all whom it may concern:

Be itknown that I, HERBERT SCHRADER, a citizen of the United States of America, and resident of'Wheeling, county of Ohio, and State of West Virginia, have invented certain new and useful Improvements in Key- Opening Cans, of which the following is a specification.

This invention relates broadly to metallic containers, and more specifically to a sheet metalcan of key-opening type.

The primary object of the invention is to provide a can or tin of the so-called vacuum type adapted to be opened by the re- 7 moval of an annular strip or ribbon of metal ,from the body of the can, which has the body portion thereof formed of a single piece of sheet material.

A further object is to provide a can of the character mentioned, adapted for use as a container for lard, coffee, preserved meats and the like, having a head which is detachable by stripping or tearing a ribbon-like stri of metal from the body of the can and whlch, when so detached, is adapted to be employed in reversed position as a close fitting removable cap or cover for the can.

With these and other objects in view, the invention resides in the features of construction which will hereinafter be fully described, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation of a can constructed in accordance with my invention, showing a key with a portion of the removable strip rolled thereon, as in opening;

Figure 2 is a vertical section of the can;

Figure 3 is a similar view showing the detfched uppe? end employed asa cover; an

Figure 4 is'an enlarged detail section of the top portion of the can.

Referring to said drawings, 1 indicates generally the body of the can, and 2 indicates a can bottom attached to said body, as by a double-seam formation 3. Said body has at its upper end a rim portion 4 of materially greater diameter than the adjacent portion thereof, said portions having at their junction an internal annular shoulder 5 which forms a seat for an u per end or closure 6. Said closure is of downwardly cupped form and has upright cylindrical walls 6 seated snugly within the embrace of the rim 4, as shown in Figs. 2 and 4. The

uppenedges of said walls 6 and the correspondlng edges of the rim, 4 are suitably jolned or interlocked as by a double seam 7.

The rim 4 has a score line 8 of suitable depth provided interiorly thereof at a level at or closely adjacent to the under edge of the seam 7, and a similar score line 9 may be, and preferably is, provided at the extreme lower boundary of the shoulder 5, or in the line of a circumferential crease 10 provided in the can at the junction of said rim with said can body, as shown in Figs. 1,

2 and 4. The portion of the rim between the score line 8 and the score line 9, or between the score line 8 and the crease 10, constitutes a tearing strip 14 adapted to be readily detached in the form of a ribbon, employing a key 11 of common form to effect the required rupture of the metal along the parallel lines indicated. To provide for initial application of the key, the strip 14 is terminated by a short integral tongue 12 which lies exterior to the body seam 13 of the can, as ordinarily.

The closure 6 is wholly detached from the can body by the removal of the strip or ribbon 14, allowing unobstructed access to the contents of the can. ameter of said closure substantially corresponds to the exterior diameter of the can body directly below the line of severance of the tearing strip 14, said closure is adapted to be applied in reversed position to said body and thus'to serve as a substantially airtight readily detachable cap or cover for the can. The double seam 7 in such can serves as a false wire finish for the cover.

Due to the fact that the lower line of severance of the ribbon or tearing strip 14 is coincident with the relatively deep external crease 10, the upper edge of the body following removal of said strip has an inward; curvature, as shown at 15 in Fig. 3, which formation obviously facilitates application of the cover.

What is claimed is- 1. A key-opening can comprising a can body having a rim of greater diameter than the adjacent portion of said body, said rim having a circumferential detachable tearing strip terminating in a free tongue, and a closure of cupped form fitted within the embrace of said rim, said closureand said rim having their edges interlocked, and said closure being adapted for application in re- Since the interior di- ;termediate circumferential crease, said rim having a circumferential detachable tearing 10 strip whose lower defining line is located substantially in the line of said crease, and a closure of cupped form fitted within the embrace of said rim and having its edge seamed to, the edge of the latter, the internal diam eter of said closure substantially corres 0nding to tlm external diameter of said b0 y adjacent to said crease.

3. A key-opening can comprising a can body having an integral rim of greater diameter than the adjacent portion of said body, said rim and said body having an intermediate circumferential crease, a closure of cupped form fitted within the embrace of said rim and having its edge seamed to the edge of the latter, said rim having circum- Y ferential parallel lines of weakness defining an intermediate tearing strip detachable in said lines, one of said lines being located substantially in the. line of said crease and the other beneath the closure attaching seam, and a free tongue terminating said tearing strip.

4. A key-opening can comprising a can body having an integral rim of greater diameter than the adjacent portion of said body, said rim and said body having an intermediate circumferential crease, a closure of cupped form fitted within the embrace of said rim and having its edge seamed to the edge of the latter, said rim having circumferential parallel lines of weakness defining an intermediate tearing strip detachable in said lines, one of said lines being located substantially in the line of said crease and the other beneath the closure attaching seam,

and a free tongue terminating said tearing strip, said closure having an internal diameter substantially correspondin to the external diameter of the body ad acent to said crease.

In testimony whereof, I aflix' my signature in presence of a subscribing witness.

. HERBERT SCHRADER.

-Witness:

H. E. DUNLAr.

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