US1750251A

US1750251A - Combination tearing strip and friction closure can

Info

Publication number: US1750251A
Application number: US66228A
Authority: US
Inventors: John M Young
Original assignee: American Can Co
Current assignee: Primerica Inc
Priority date: 1925-11-02
Filing date: 1925-11-02
Publication date: 1930-03-11
Anticipated expiration: 1947-03-11

Description

Marli IT, 1930. J. M. YOUNG 1,750,251

COMBINATION TEARING STRIP AND FRICTION CLOSURE CAN Filed Nov. 2, 1925 AT ORNEY Patented 'Mar. 11 1 930 UNITED T TES PATENT or-Flee JOHN M. YOUNG, OI BROOKLYN, NEW YORK, ASSIGNOR TO AMERICAN GAIN COMPANY, OF NEW YORK, N. 1., A CORPORATION OF NEW JERSEY COMBINATIQ N TEARING STRIB AIiTD FRICTION CLOSURE CAN Application filed November 2, 1825. Serial No. 66,228.

time prior to the removal of a tearing strip by means of which the can is adapted to be opened,

It will be noted from the drawings and as the description progresses that one of. said eals is provided by the double seam at the top end of the can and additional sealing by means of an inward bend in the body of the can, which is extended a considerable distance from the plane of the wall and is slightly yielding, having a spring action radially of the can so that it provides a tight contact with a friction element of the cover which itengages, this inwardly-bent portion being also rounded so as to provide a tight seal alon a circumferential line of contact.

" A. furt ier object of my invention is to arrange the ordinary countersink, provided for the double seaming which connects the cover to the can body, sufliciently deep to permit the horizontal extension from the base of the countersink practicall to. contact the upper portion of the inward endor loop of the can body previous to the removal of the tearing strip, thereby providing a double seal closure after the tearingv strip has been removed, wherein the position of the cover relative to the can is the same before and after the removal of the tearing strip, and the can remains of the same height under either condition. v

Another object of this invention resides in forming the inner vertical wall of-the top seam, which joins the cover to the body portion, sufiiciently deep so as to provide a lining or backin g for the rear face of the tearing strip and in forming the bottom portion of this vertical wall with an inwardly bent portion adapted to form a frictional seal with the resilient loop or bend of the body, whereby effectively to exclude the contents of the can from the zone of the tear strip.

Numerous other objects and advantages of the invention will be apparent as it'is better understood fromthe following description, which, taken in connection with the accompanying drawings,discloses a preferred emodiment thereof.

Referring to the drawings,

Figure 1 is a perspective view of a can inwhich-my invention is embodied;

Fig. 2 is a partial sectional View of the upper part thereof prior to the removal of the tearing strip, and

Fig. 3 is a similar view after the tearing strip is removed and the cover positioned as a friction plug reclosure.

On said drawings, illustrating the best manner in which I have thus far contemplated appl ing the principles of my invention, the re erence character 11 indicates the body of a sheet metal can of the usual round form, though it will be manifest that the ininvention isequall applicable to cans of different shape. A. bottom end 12 and an u per end or cover 13 are secured to the b0 y in the sanitary double seamed or other usual manner and the upper part of the body wall is scored at 14; and 15 to provide a tearing strip 16 adapted to be removed to open the can. The double seam by which the upper end 13 is secured to the body wall is indicatlegi at 17 and the usual side seam is shown at Just below the lower score line 14, the

material of the can body is bent inwardly at 19 in the form of a hollow looped flange, as

viewed in cross-section (see Fig. 2), and may be bent thence downwardly at 20, the material of the body wall above and beneath the loops being infthe same plane, as may be. readily seen from the drawing. The bend thus provided is open so that a rounded in ternal surface is provided for the reception of the friction plug cover, as will be presently described. The top 20' of the bent portion may extend over into contact or substant' ally into contact with the wall of the can a ove the lower score line and this serves to guard 5 countersunk portion is formed with a vertical wall 21 which extends downwardly and substantially in contact with the wall 16 at the zone of the tearing strip to provide a backing or lining for the rear of this tearing 0 strip. This wall 21 at its basal portion is provided with an inward'extension 21, which practically engages the upper portion or top 20' of the loop or bend 20, and from this point the wall then extends downwardly, as

wall 23 of the bend or loop to form a frictional fit therewith. The wall then extends inwardly, as at 24, and thence upwardly, at 25, to provide the cover 13. It will thus be seen from an inspection of Figs. 2 and 3 of the drawings that this construction results in a double sealed closure wherein the position of the cover 13 relative to the can is the same before and after the removal of the tearing strip 16.

It must be further apparent that the advantages of this construction reside in the fact that no spaceis left in the can above the loop or bead 20, since the downwardly-extending wall 21 is sufiiciently deep to not only contact with the rear of the body wall at the zone of the tear strip, but also being provided at 22, and engages the inner circumferentialbe made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention, or sacrlficing all of its material advantages, the form hereinbefore described being merely a referredembodiment thereof.

1. A can, comprising a body having score lines setting oifatearing strip around the body near its top, the material of the body being bent inwardly in a hollow looped .flange below and near the tearing strip and to a distance beyond the rest of the interior surface of the body and forming an internal friction wall, and a cover having an external shoulder fitting tightly within the mouth of the body and a flange double-seamed with the top edge of the body and an external friction wall of less diameter than the said shoulder and fitting tightly within said internal friction wall of the body before the said tearing strip is removed.

2. A can, comprising a body having score lines setting off a tearing strip around the body near its top, the material of the body being bent inwardly in a hollow looped flange below and near the tearing strip and to a distance beyond the rest of the interior surface of the body and forming an internal friction wall, and a cover having an external shoulder fitting tightly within the mouth of the body and a flange double-seamed with the top edge of the body and an external friction with the inwar b and downwardlybent P Wall of less diameter than the said shoulder tions at its base, it forms a double seal with the bend or loop 20 at these points effectively to exclude the contents of the can from the wall of the can body at the rear of the tear strip. By means of this construction there 4 is no danger of any of the material in the container being moist and subsequently smearing on the edge of the loop or bend when the can is shipped. Therefore, in a can of this type, even though the contents be a somewhat sticky liquid material, none of it will be present to smear thehands in opening the can. It will also be apparent that by excluding the contents of the can from the zone of the tear strip, when the 5 can is opened, there is no possibility of the contents exuding from the severed Walls of the can body. It will also be apparent that the yielding or spring-action of the bend 19 provides a tight gripping of the walls 26 so that after removal of the tearing strip the cover may be positioned, as in Fig. 3, in the manner of the ordinary plug closure.

The can is opened by engaging the tongue of the tearing strip 16 with the usual key and winding up the tearing strip as severance along the

lines

14 and 15 occurs.

It is thought that the invent1on and many andfitting tightly within said internal friction wall of the body before the said tearing strip is removed, said cover also having a part which fits on the top of said looped flange.

3. A can comprising a body provided with encircling. score lines setting 01]? a tearing strip, the material of the body being bent upon itself to provide a friction wall within the can and of diameter less than the diameter of the portion of the body provided with said encircling score lines, and a cover seamed to the body and having a cylindrical wall engaging said portion of said body provided with said score lines and having also a substantially vertical friction seat wall inset from said first mentioned wall by the thickness of the bend and engaging within the friction seat wall of the body prior to the removal of said tearing stri JOHN M. TOUNG.

of its attendant advantages will be under-' stood from the foregoing descri tion, and it 66 will be apparent that various 0 anges may