US1680763A

US1680763A - Receptacle closure

Info

Publication number: US1680763A
Application number: US723146A
Authority: US
Inventors: Leslie R N Carvalho
Original assignee: CLOSURE SERVICE Co
Current assignee: CLOSURE SERVICE Co
Priority date: 1921-10-29
Filing date: 1924-06-30
Publication date: 1928-08-14
Anticipated expiration: 1945-08-14

Description

I INVENTUR L. R. N. CARVALHO RECEPTACLE CLOSURE Original Filed Oct. 29, 1921 Aug-14, 192s.

Patented Aug. 14, 1928.

UNITED STATES PATENT OFFICE.

LESLIE 3 N. OARVALHO, OF TOLEDO, OHIO, ASSIGNOR TO THE CLOSURE SERVICE COM- PAN Y,

01 TOLEDO, OHIO, A CORPORATION OF OHIO.

BECEPTAGLE CLOSURE Original application filed October 29, 1921, Serial No. 511,392. Divided and this application filed June 30,

1924. Serial No. 723,146.

My invention relates to a receptacle closure and, as herein shown, is particularly designed for use as a cap or closure for relatively small necked bottles, although it may 5 be satisfactorily used. as a. closure for receptacles of other kinds and proportions.-

An object of the invention is to provide an eflicient closure which may be cheaply and easily manufactured and which will serve normally to seal the receptacle, and

which may be readily released and when released will still be eflicient for use as temporary closure. In its preferred form, the closure comprises a top piece or cover portion formed of a piece of sheet material, and adepending flange portion formed of a separate piece from the cover portion, said parts united by a seam, the flange portion having its lower edge adapted to be tornofl' for releasing the closure, while leaving the upper part unchanged and ready for use as a satisfactory and temporary closure.

Other features of the invention will appear hereinafter.

The present application is a division of my co-pendin application, Serial Number 511,392, filed cto er 29, 1921, for rece tacle closure, on which Patent No. 1,510,45 was granted October 7, 1924.

In the accompanying drawings:

Figure 1 is a side elevation view of a closure, and the receptacle towhich it is applied, the parts being shown partly in vertical section.

Figure 2 is a transverse sectional view at the plane of the line 11-11 on Figure 1.

Figure 3 .is an elevation view of the closure.

The closure as herein shown comprises a cover portion G and a flange portion H formed of separate pieces of sheet metal and connected by an annular'seam 3. The flange portion is stamped from a piece of flat sheet metal, is then bent into cylindrical form and its ends united by aseam 2 extending vertically of the closure.

The seam 3 is preferably, though not necessarily, of a character such that it holds the cover and flange parts rigidly and immovably connected together and at the same time provides an attractively rounded edge the neck surface at the upper edge of the closure pro jecting above the uppermost surface of the cover, serving to frame the cover and protect against injury any lacquer, paint or other ornamentation carried by the cover. This seam also serves as an effective reenforcing element for maintaining the cover against distortion at all times.

Within the closure, resting against the inner surface of the cover, is a gasket 5 of cork or other suitable material, held in position by frictional engagement with the walls of the flange portion of the closure. The flange port1on H is formed with screw threads or spiral portions 6 extending circumferentially of the closure to fit corresponding screw threads formed on the neck of the container. The lower edge 7 of the flange portion is bent or flanged inwardly to underlie an annular bead 1 formed on of the receptacle below the threaded portion thereofn At a point spaced a ,short distance above the lower edge, the flange portion H of the closure is formed with a score line 8 extending substantiall throughout the circumference thereof and adapting the portion of the closure below 'said line to be severed or torn off from the portion above when it is desired to remove the closure.

As a convenient-means by. which to tear off the removable strip or portion 9 of the from one end of said portion and overlaps e the opposite end, said tongue being adapted to be lifted by the users fingers and to constitute an eflicient finger grip. If desired, the strip 9 may be wholly severed from the main portion of the flange as at 11 for a suitable distance along the score line 8," so as to provide an effective length for the tongue without the necessityof providing an added length or rojection on the blank from which the Ii ange H is formed. A decided economy in material is thus effected and yet a very satisfactory finger grip size given to the tongue by means of the slit 11.

The lower margin of the blank providing the gripping bend 7 is also omitted or cut away adjacent to the tongue 10 for approxiindicated? for example,

matel the same distance as the length of the sit 11 so as not to interfere with the proper functioning of the tongue.

The seam 2 may be of any form or kind, but is herein shown to be of the interlocking type, that is, the blank is provided with opposite end portions bent back upon themselves and these are interengaged with each other. This interlocking seam may extend for any desired portion of the vertical length of the flange H, the remaining portion bein either a plain butt or la j omt, as

at 17. t is preferred that the interlocking seam shall appear at least at a point closely adjacent to the score 8.so as to thereby prevent opening of the seam when force is applied in tearing 03 the attaching strip 9. In this connection, it is to be noted that the provision of the slit 11 not only afl'ords advantages as above mentioned, but also places the point 18, where the tearing operation begins, at a position suificiently removed from the seam, so that the strain ap lied in be ing the tearing operation is Eelt by the Eddy of the closure at a point removed from the seam, where it is less likely to cause the seam to open.

The tongue 10 is referably formed on that end of the bla which in the completed closure lies under the opposite end, along seam 2, so that the ends of the flange H are less liable to be separated at the seam when the tongue is torn back.

As a further precaution against possible opening of the seam when the tongue is torn back, the seam, particularly at its lower end adjacent the tongue, may be distorted or otherwise operated upon'so that the strain of tearing back the tongue, whether the tongue be upon the upper or nether end of the blank, will be resisted by positively locked ortions of the seam.

A suitable distortion of the seam for this purpose is shown to consist of an annular end 20 positioned so that it constitutes in effect an ornamental addition to the closure continuin across the seam, so that the va rious thic nesses of metal of the seam are bent to form the transverse curvature of the seam and are thus caused to present such opposing surfaces to each other, that separation would be unlikely.

By extending the seam to or near the point where the tearing off of the attaching portion 9 begins, said seam is made to constitute an efficient reenforcing element for preventing likelihood of distortion of the closure under the initial tearing strain, and this is particularly true where the seam is itself locked against separation, as just described.

It is to be noted that the position of the head 20, being directly above and adjacent to the score 8, places said score in a protected position beneath the head. When the attaching portion 9, therefore, has been torn off, the resultant raw-edge left upon the body of the closure will be so obscured and protected that it will offer neither an undesirable appearance nor a menace to the users fingers. The bead also stitiens the lower edge of the closure and prevents distortion of said lower edge both during the tearing oif operation and afterward. The score 8 may be formed by cutting into the metal from either the outer or inner surface.

A closure constructed as herein disclosed requires no additional or separately formed receptacle seal; that is, it carries its own sealing element as a substantial part of itself. It may be painted, lacquered or otherwise ornamented and protected on either or both of its top or its side surfaces.

Modifications may be resorted to within the spirit and scope of my invention.

What I claim is:

1. A receptacle closure comprising a cover part and a one-piece screw threaded skirt part, the skirt part having a side seam therein, the lower portion of the skirt part being adapted to be bent inwardly to constitute a holding means to retain the closure in sealing position upon a receptacle, and said skirt part having a vertical slit extending upwardly from the bottom edge thereof and having a finger grip continuing from one wall of said slit by which to tear off the lower portion of the skirt art, said wall of the skirt part being s aced rom the seam for the purpose set fortii. I

a 2. A receptacle closure comprising cover and flan e portions, the flange portion being formed rom a piece of sheet material bent into cylindrical form and having its meeting edges seamed together by a seam extending vertically of the closure, the flange portion comprising an annular bead formed thereon intermediate the upper and lower ends of the flange, said head extending circumferentially around the flan e, the flange above the bead being forme with screw threads also extending circumferentially thereof and merging into and terminaitn at said head, the flange being formed wit a score line extending circumferentially thereof below and in close proximiitiy to said head, whereby theportion of the ange below the head is removable and forms an integral attaching portion.

3. A receptacle closure comprising a onepiece screw threated skirt portion having a side seam therein, the lower portion of the skirt being adapted to be bent inwardly to constitute a holding means to retain the closure in sealing position upon a receptacle, said skirt ortion having a circumferentiallv extent ing score line adjacent the inwardly bent portion and an outwardly formed bead immediately above said score line, said skirt portion having a vertical said outwardly formed rib being so located slit extending upwardly from its lower that it protects the exposed raw edge edge, a finger grip extendin circumferenformed by the tearing o' ration. tially from one wall of said slit b which the Signed at Toledo, in t e countyof Lucas 6 portlon of the skirt below sai score line and State of Ohio, this 27th day of June,

may be separated from the skirt permitting 1924.

removal 0 the closure from the receptacle, LESLIE R. N. CARVALHO.