US4034888A — Can for containing beverages

Claim 1

Independent Claim 122 words

A can for containing a beverage, comprising a metallic enclosure closed by a separate end, said end comprising an opening closed by a leakproof capsule retractable to the inside of the can, wherein said opening is formed by a tubular element securely fixed to said end and turned towards the inside of said can, and wherein said capsule is made of a semi-deformable rigid material having a disc of diameter slightly greater than the internal diameter of said tubular element, said disc being securely fixed to a tubular skirt whose external diameter is at most equal to the diameter of said tubular element, the end of said skirt opposite said disc being provided with external protuberance means for gripping said tubular element.

Claim 2

Dependent Claim 122 words

A can for containing a beverage, comprising a metallic enclosure closed by a separate end, said end comprising an opening closed by a leakproof capsule retractable to the inside of the can, wherein said opening is formed by a tubular element securely fixed to said end and turned towards the inside of said can, and wherein said capsule is made of a semi-deformable rigid material having a disc of diameter slightly greater than the internal diameter of said tubular element, said disc being securely fixed to a tubular skirt whose external diameter is at most equal to the diameter of said tubular element, the end of said skirt opposite said disc being provided with external protuberance means for gripping said tubular element.

Claim 3

Dependent Claim 36 words

A can according to claim 1, wherein said opening is exteriorly lined by an annular depression with respect to the outer surface of said end, of a depth approximately equal to the thickness of said disc.

Claim 4

Dependent Claim 71 words

A can according to claim 2, wherein said opening, tubular element and depression are obtained by a stamping and punching operation of said end, herein the end of said tubular element opposite said opening is rolled outwardly so as to form an external flange for said element and wherein said skirt so shaped at its end opposite said disc as to envelope said rolled part and to abut on said flange.

Claim 5

Dependent Claim 19 words

A can according to claim 1, wherein said disc presents a concavity turned to the outside of the can.

Claim 6

Dependent Claim 124 words

In a can having an end including an opening adapted to be closed by a capsule formed of semideformable rigid material, said opening comprising tubular means integral with the can end extending toward the inside of the can about the opening for forming a bore and said capsule means comprising disc means and skirt means integral with said disc means, extending in the same direction as said tubular means, and abutting said tubular means, the improvement comprising the provision of: said disc means having a diameter greater than the opening and being deformable for passing into the opening, whereby deformation of the semi-deformable rigid material of the disc allows the disc to be forced through the opening to expose the inside of the can.

Claim 7

Dependent Claim 124 words

In a can having an end including an opening adapted to be closed by a capsule formed of semideformable rigid material, said opening comprising tubular means integral with the can end extending toward the inside of the can about the opening for forming a bore and said capsule means comprising disc means and skirt means integral with said disc means, extending in the same direction as said tubular means, and abutting said tubular means, the improvement comprising the provision of: said disc means having a diameter greater than the opening and being deformable for passing into the opening, whereby deformation of the semi-deformable rigid material of the disc allows the disc to be forced through the opening to expose the inside of the can.

Claim 8

Dependent Claim 41 words

The improvement of claim 5 further comprising a portion of greater diameter than the opening between the end of the can and the opening for forming an external annular depression for receiving the portion of the disc extending beyond the opening.

Claim 9

Dependent Claim 36 words

The improvement of claim 6 wherein said annular depression has an annular width and said disc extends beyond the outside of the skirt means a distance substantially equal to the annular width of the annular depression.

Claim 10

Dependent Claim 97 words

In a can having an end including an opening adapted to be closed by a capsule formed of semi-deformable rigid material, said opening comprising tubular means integral with the can end extending toward the inside of the can about the opening for forming a bore and said capsule means comprising disc means and skirt means integral with said disc means, extending in the same direction as said tubular means, and abutting said tubular means, the improvement comprising the provision of: said skirt means and said tubular means both being generally perpendicular to the end of the can.

Claim 11

Dependent Claim 97 words

In a can having an end including an opening adapted to be closed by a capsule formed of semi-deformable rigid material, said opening comprising tubular means integral with the can end extending toward the inside of the can about the opening for forming a bore and said capsule means comprising disc means and skirt means integral with said disc means, extending in the same direction as said tubular means, and abutting said tubular means, the improvement comprising the provision of: said skirt means and said tubular means both being generally perpendicular to the end of the can.

Claim 12

Dependent Claim 119 words

In a can having an end including an opening adapted to be closed by a capsule formed of semi-deformable rigid material, said opening comprising tubular means integral with the can end extending toward the inside of the can about the opening for forming a bore and said capsule means comprising disc means and skirt means integral with said disc means, extending in the same direction as said tubular means, and abutting said tubular means, the improvement comprising the provision of: said tubular means terminating in a lip facing the end of the can, said skirt means having contacting means extending adjacent said lip between the lip and the end of the can for holding the capsule in the opening.

Claim 13

Dependent Claim 119 words

In a can having an end including an opening adapted to be closed by a capsule formed of semi-deformable rigid material, said opening comprising tubular means integral with the can end extending toward the inside of the can about the opening for forming a bore and said capsule means comprising disc means and skirt means integral with said disc means, extending in the same direction as said tubular means, and abutting said tubular means, the improvement comprising the provision of: said tubular means terminating in a lip facing the end of the can, said skirt means having contacting means extending adjacent said lip between the lip and the end of the can for holding the capsule in the opening.

Claim 14

Dependent Claim 17 words

The improvement of claim 5 wherein the disc is concave relative to the outside of the can.

Claim 15

Dependent Claim 21 words

The improvement of claim 6 wherein said exterior annular depression has a thickness substantially equal to the thickness of the disc.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1980-07-11	1981-01-10	1981-07-12	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1984-07-11	1985-01-10	1985-07-12	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1988-07-11	1989-01-10	1989-07-12	$7700.00	Window Closed / Lapsed

Can for containing beverages

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