US2433031A - Collar can collar and method of mounting same - Google Patents

Description

Dec. 23, 1947. J. COYLE ET AL COLLAR CAN COLLAR AND METHOD OF MOUNTING SAME 2 Sheets-Sheet 1 Filed June 30, 1944 Summer- B ZJZZZzJ m EPuni-e Dec. 23, 1947. COYLE ET AL 2,433,031

COLLAR CAN COLLAR AND METHOD OF MOUNTING SAME Filed June 30, 1944 2 SheetsSheet 2 '1 'm 6202 V 9 E I A 'IIIIII,

v A m w J6? J9 7 (91 32 Lia/in mammipu l (Ittorneg 6 Juventors Patented Dec. 23, 1947 COLLAR CAN COLLAR ANDMET'HOD OF MOUNTING SAME John Coyle, Baltimore, Md., and William .Punte, Passaic, N. J., assignorsto Continental Can Company, Inc., New

ration of New York York, N. *Y.,- a corpo- Application June 30, 1944, Serial No. 542,961

6 Claims.

The invention relates generally to metallic receptacles, and more particularly to the type known as collar cans wherein are provided tear strip structures adapted to be wound on keys and by thismeans torn out of the body walls of the cans in order to effect an opening thereof,

and it primarily .seeks to provide a novel collar structure for such cans and a novel method of mounting the collars in the cans.

In cans of the typestated the tear strips usually are defined by parallel score lines which surround the cans adjacenttheupper end closures thereof, and a collaris snugly fitted within the upper end of each can in position for extending upwardly fromthe upper extremity of the can body resultingfrom the tearing out of the rip strip, thereby to maintain thedesired .can bodywall height and provide a supportneck over which theskirt or body wall portion remaining attached .to the upper end closure can be telescoped to effect a reclosure of the can. It is the purpose of the present invention to provide a novel form of collarof the character stated and a novel method .of mounting the same, said collar including an annular sheet metal .body having an inwardly curled bead at eachof its upper and lower edges .and a plurality .of circumferential slits disposed equidistantly about the-body opposite the lower bead thereof and having lower slit defining edge portions corrugated to present a plurality of humps inwardly towardsaid lower bead at the position of each said slit, and said method con sisting in inserting the collar into the upper end 'of the-can body so that the upper and lower collar beads extend'above and below thecan body tear strip and then flattening the lower collar bead in amanner for causing the corrugated edge portions to be displaced outwardly beyond the outer diameter of the collar thereby to present at least one hump at the position of .each slit in collar anchoring contact with the can body;

Another object of the invention is to provide a collar can collar .mounting structure of the character stated in which the can .is provided with an S-shaped bead structure just below its tear strip and composed of an upper outwardly directed bead portion into which the outwardly presented collar humps interlock in anchoring the collar in thecan, and a lower inwardly .directed bead portion forming a seat on which the collar rests in a manner for being supported.

against movement downwardly in the can.

With the above and other objects in view that willhereinafter appear, the nature of the invention will be more clearlyunderstood by reference to the following detailed description, the appended claims, and the several views illustrated in the accompanying drawings.

In the drawings:

Figure 1 is a part side elevation and part vertical cross sectional view of a can embodying ,the invention.

Figure 2 is an enlarged fragmentary sectional View illustrating the collar inserted in the can body prior to the flattening of the lower collar bead.

Figure 3 is a View similar to Figure 2, the lower collar bead being illustrated as flattened to eifect an anchoring of the collarin the can body.

Figure 4 is a vertical cross section of the collar per se, prior to the formation of the lower bead thereon.

Figure 5 is a view similar to Figure 4 illustrating the completed collar.

Figure 6 is an enlarged fragmentary horizontal sectional View taken on the line 65 on Figure 5.

Figure '7 is a view similar to Figure 6, the section being taken on the line 1-! onFigure 3.

Figure 8 is a vertical cross sectional view illustrating the step of"fiattening the lower bead and anchoring the collar in the can body, suitable bead flattening apparatus being illustrated.

In the example of embodiment of the invention herein disclosed, the collar is shown as mounted ina can comprising a body 5, a lower end closure Band an upper end closure 1. The can body is provided adjacent its upper end with a bead structure comprising an outwardly extended upper bead portion 8 and an inwardly extended lower bead portionll. Just above the S-shaped bead portiont, 9 the .can body is scored in the manner well known in the art to provide a tear strip it which when wound about a key may be torn out of the can body to separate the main portion of the body from the upper extremity thereof and effect an opening of the can. When the tear strip ill is torn out in the manner stated, a skirt I I is left attached to the upper end closure 1', and this skirt is adapted to be telescoped over the collar which projects from the upper extremity'of the main can body in order to effect a reclosure of the can.

The improved collar is shown in detail in Fig- .ures 4 to 6. Thi collar may take the form of a continuous drawn ring, orthe cylindriform sheet metal body may be shaped from a band having it endscverlapped and connected in the manner illustrated inFigures 4 and 5. When the collar .isiormed in the manner herein disclosed, it is shaped from a sheet metal band to provide a cylindriform body l2, the ends of the band being lapped as at l3 and secured together by passing tongues 14 formed on one'end of the strip through an aperture I in the other end of the strip and then upsetting the tongues. The upper and lower edge portions of one of the lapped strip ends are notched as at It so as to avoid provision of double thicknesses of metal at the upper and lower edge portions of the collar at which curled beads are to be formed. One such inwardly curled bead I1 is provided at the upper edge extremity of the collar, and another inwardly curled bead I8 is formed at the lower extremity of the collar.

It will be apparent by reference to Figures 4 and 5 of the drawings that the collar body I2 is provided with a plurality of equidistantly spaced circumferential slits l9, eight such slits being shown in the present disclosure, and the lower slit defining edge portions are corrugated to provide a set of three inwardly directed humps 20 at the position of each circumferential slit. It will be apparent by reference to Figure 4 that the slits and corrugations are formed before the lower bead I8 is formed, and the formation of the lower, inwardly curled bead IS in the manner illustrated in Figure 5 completes the collar.

After the collar is completed in the manner above described, it is inserted in the upper end of the can body in the manner illustrated in Figure 2 from which it will be apparent that the upper and lower edge extremities of the collar extend above and below the tear strip It] with the lower inwardly curled bead l3 resting as at 2| on the lower inwardly directed can body bead portion 9.

After the collar has been inserted in the can body in the position illustrated in Figure 2, it is securely anchored in the can body by operation of a suitable apparatus illustrated in Figure 8 and generally designated 22. This apparatus includes a split support ring 23 which encircles the upper portion of the can body, and a. head ring 24 having an outwardly extended flange 25 for resting on the support ring 23. A bottom ring 25 is secured in spaced relation below the head ring 24 by spaced sleeves 21 and screws 28, and the bottom ring 26 is bevelled at its outer edge as at 29 and is so dimensioned as to be spaced well within the can body bead portion 9. A plurality of radially movable pressers 30 are interposed between the head ring 24 and the bottom ring 26, and each is provided with a slot 3| to permit freedom of movement relative to the respective spacer sleeve 21. Each presser member 30 includes a lower bead flattening wall portion 32 and an upper bead clearance 33.

A presser member expander head 34 ls provided and is mounted for a limited amount of upward and downward movement with relation to the head ring 24 on headed screws 35, said expander head being normally held in spaced relation above the head ring 24 by compression springs interposed between said head and ring. The expanding head 34 includes a centrally depending hub having a coniform end extension 31 engageable with the bevelled ends 38 of the presser member 30. The presser members 39 are held retracted by a retractile coil spring ring 39 which is mounted in a groove ll! formed in the under surfaces of the presser members.

It will be apparent by reference to Figure 8 of the drawings that the support ring 23 may be applied to embrace and support the upper portion of the can body, after which the remainder of the collar anchoring apparatus can. be i fllted in the upper end of the can body in the manner illustrated in Figure 8 with the head ring flange 25 resting on the support ring 23. At the time of the initial insertion of the apparatus in the upper end of the can body, the expander head 34 will be elevated above the head ring 24 and the presser members 3i] will be retracted, thereby to permit ready insertion of said presser members within the upper and lower beads l8 and IQ of the collar. After the apparatus has been thus inserted in the upper end of the can body, the expanding head 34 is depressed to cause the coniform end extension 31 thereof to engage the bevelled inner ends 38 of the presser members 30 and press them outwardly to the position illustrated in Figure 8. Outward forcing of the presser members 30 to the position illustrated in Figure 8 causes the presser members to engage the inwardly curled lower collar bead l8 and flatten the same in the manner illustrated in Figures 3 and 8. This flattening of the bead transforms the bead into a hem 4|, and engagement of the flattened head or hem wall with the inwardly directed corrugation humps 20 causes the corrugated parts to be forced outwardly in a manner for presenting two humps 42 outside the external diameter of the collar body I2 and into position in the upper outwardly directed can body bead portion 8 in the manner clearly illustrated in Figure 3. This engagement of the humps 42 as at 43 under the outwardly directed shoulder provided by the upper can body bead portion 8 serves to securely anchor the collar in the position illustrated in Figure 3 with the lower edge of the hem 4| resting as at 44 on the lower can body bead portion 9. In this manner the collar is securely anchored against upward movement by the engagement of the humps 42 as at 43 in the upper can body bead portion 8, and against downward movement by engagement of the lower extremity of the hem M with the lower can body bead portion 9 as at 44.

While one form of the invention has been shown for purposes of illustration, it is to be clearly understood that various changes in the details of construction and arrangement of parts may be made without departing from the spirit and scope of the invention as defined in the appended claims.

We claim:

1. A collar for a collar can comprising an annular sheet metal body having an inwardly curled bead at each of its upper and lower edge portions and a plurality of circumferential slits disposed about the body opposite the lower bead and having lower slit defining edge portions corrugated in a manner for presenting a plurality of humps extending inwardly from said body toward said lower bead at the position of each slit whereby upon flattening of said lower bead against said body without obstruction of the corrugated portions from without the body the flattened bead wall will engage the inwardly directed humps and cause at least one hump of each corrugated portion to be presented outwardly of the outer diameter of the body for collar anchoring engagement with a can body in which the collar is inserted.

2. In a sheet metal container, a container body portion, an upper end closure seamed onto the body portion, said body portion below and adjacent said closure being scored to provide a tear strip and having an outwardly directed shoulder portion, and a collar snugly fitting with in the container body and having a main body portion lying opposite and extending above and below the tear strip and terminating at its upper extremity in an inwardly turned edge, said collar body portion having a plurality of circumferentially spaced slits and lower corrugated slit defining edge portions with corrugations of said slit defining edge portions projecting outwardly beyond the collar body portion and engaging under the can body shoulder portion and said collar body having at its lower extremity a wall opposing and engaging the corrugated portions and holding said shoulder engaging corrugations in their outwardly projected position.

3. A structure as defined in claim 2 in which the corrugation opposing wall comprises an integral part of the collar body in the form of a hem, and the container body is provided with an inwardly directed head on which said hem rests in a manner preventing downward movement of the collar in the can body.

4. A structure as defined in claim 2 in which the container body portion is provided with an S-shaped bead structure comprising an upper outwardly directed bead portion providing the shoulder under which the collar corrugations engage for securely anchoring the collar in the container, and a lower inwardly directed bead portion on which the lower extremity of the collar rests in a manner for cooperating with the anchoring corrugations in securing the collar against movement upwardly or downwardly in the container.

5. In the method of mounting a collar in a collar can body having an outwardly directed bead therein, said collar comprising an annular sheet metal body having an inwardly curled bead at its lower edge portion and a plurality of circumferentially extending and spaced slits about said collar body opposite said collar bead and having lower slit defining edge portions each corrugated to present a plurality of humps inwardly toward said collar bead and at least one hump disposed between and connected with two of the inwardly directed humps and directed outwardly toward the can body bead at the position of each slit, all said humps normally lying within the outside diameter of the collar body, the steps of inserting the collar in the can body in position for presenting the collar bead and humps opposite the can body bead, and flattening said collar bead against the collar body and said inwardly directed humps to conform to the contour of the collar body and force the corrugated lower slit defining edge portions outwardly into the can body bead to cause the outwardly directed hump of each corrugated lower slit defining edge portion to project outwardly into the can body bead beyond 6 the outer diameter of the collar body for anchoring engagement in said can body bead.

6. In the method of mounting a collar in a collar can body having an S-shaped bead structure therein including an upper outwardly directed bead portion and a lower inwardly di rected bead portion, said collar comprising an annular sheet metal body having an inwardly curled bead at its lower edge portion and a plurality of circumferentially extending and spaced slits about said collar body opposite said collar bead and having lower slit defining edge port-ions each corrugated to present a plurality of humps inwardly toward said collar bead and at least one hump disposed between and connected with two of the inwardly directed humps and directed outwardly toward the upper outwardly directed can body bead portion at t p n of each slit, all said humps normally 1ying within the outside diameter of the collar body, the steps of inserting the collar in the can body in position for presenting the collar bead and humps opposite the upper outwardly directed can body bead portion and said collar against the lower inwardly directed can body bead portion, and flattening said collar bead against the collar body and said inwardly directed humps to conform to the contour of the collar body and force the corrugated lower slit defining edge portions outwardly into the upper outwardly directed can body bead portion to cause the outwardly directed hump of each corrugated lower slit defining edge portion to project outwardly into the upper outwardly directed can body bead portion beyond the outer diameter of the collar body for anchoring engagement in said upper outwardly directed can body bead portion.

JOHN COYLE.

WILLIAM F. PUNTE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,849,768 Punte Mar, 15, 1932 1,898,643 Peters Feb. 21, 1933 1,811,106 Aulbach June 23, 1931 1,902,664 Punte Mar. 21, 1933 2,262,066 Taylor Nov. 11, 1941 2,295,540 Begg Sept. 15, 1942 2,128,953 Miller Sept. 6, 1938 1,825,596 Kronquest Sept. 29, 1931 1,839,435 Widell Jan. 5, 1932

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