Easily cut aluminium closure capsule

Details Easily cut aluminium closure capsule Easily cut aluminium closure capsule

1989-08-14

1991-05-07

Marcus, Stephen

Bottles and jars

Closures

Frangible member or portion

215326, B65D 4100

Patent

active

050129422

ABSTRACT:
The object of the invention is an aluminium or an alloy closure capsule adapted to be crimped onto the neck of a bottle and of which the ring comprises a shoulder, the skirt of this capsule comprising a retaining ring or peripheral rib which, after the capsule has been crimped onto the neck, will define with the portion of the skirt covering the top edge of the said shoulder of the neck an annular groove permitting guidance of a blade for cutting the capsule, and also a line of weakness consisting of a thinned peripheral zone situated in the bottom of the said groove. The invention also relates to the method of producing this capsule which is used for any closure of a bottle which has to have its capsule removed by means of a knife.

REFERENCES:
patent: 2063615 (1936-12-01), Merolle
patent: 2444506 (1948-07-01), Hammer
patent: 2854003 (1958-09-01), Kirsch
patent: 3810556 (1974-05-01), Coursaut
patent: 4105133 (1978-08-01), La Barge et al.
patent: 4114775 (1978-09-01), Shinozaki
patent: 4217989 (1980-08-01), George
patent: 4294367 (1981-10-01), Otsuka et al.

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