Bottle closure

Details Bottle closure Bottle closure

1972-09-19

1976-01-20

Price, William

Bottles and jars

Closures

With pressure-responsive valve

215270, 215271, B65D 5116

Patent

active

039332659

ABSTRACT:
A bottle closure of flexible thermoset synthetic material has a corrugated annular insert and an outer wall depending from its base. A thinned portion in the base is of a thickness and geometry adapted to burst at a predetermined pressure within the bottle. An annular shoulder on a severable skirt extends laterally beyond the outer wall which fits against the end of a plunger for urging an internal annular bevel groove in the skirt over an external annular bead near the mouth of the bottle.

REFERENCES:
patent: 1723790 (1929-08-01), Kirkland
patent: 1865764 (1932-07-01), Keenan
patent: 2054034 (1936-09-01), Conner
patent: 2726002 (1955-12-01), Dalianis
patent: 3329295 (1967-07-01), Fields
patent: 3441161 (1969-04-01), Van Barrn
patent: 3670915 (1972-06-01), Forman
patent: 3696957 (1972-10-01), Van Barrn

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