Title: Bottle closure

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.

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Inventors: Karlan, Jac H. (Riverdale, NY, US)

Application Number: 290418
Filing Date: 1972-09-19
Publication_date: 1976-01-20
Assignee:
Primary Class(es): 215/260 215/270, 215/271
Other Classes:
US Patent Ref:

1723790	Aug, 1929	Kirkland	215/42.
1865764	Jul, 1932	Keenan	215/56.
2054034	Sep, 1936	Conner	215/42.
2726002	Dec, 1955	Dalianis	220/89.
3329295	Jul, 1967	Fields	215/42.
3441161	Apr, 1969	Van Barrn	215/42.
3670915	Jun, 1972	Forman	215/56.
3696957	Oct, 1972	Van Barrn	215/41.

Other Refs: 170,3101,150,5491,282,024

Dec, 1963	SU
, 1957	FR
, 1960	FR

Primary Examiner: Price, William
Assistant Examiner: Hart, Ro E.
Attorney: