Closures with cast sealing gasket

Details Closures with cast sealing gasket Closures with cast sealing gasket

1982-07-06

1987-10-06

Marcus, Stephen

Bottles and jars

Closures

Cap type

215341, B65D 5302

Patent

active

046977163

ABSTRACT:
A closure for a container comprising a body of synthetic plastic material including a top wall and a peripheral skirt, removably engaging a container. An annular channel is provided on the inner surface of the top wall at the area of juncture of the top wall and the skirt. The channel comprises integral side wall portions and at least one of said side walls comprises spaced generally vertically extending ribs. A sealing gasket is cast in situ in the channel and interlocks with the spaced ribs.

REFERENCES:
patent: 802381 (1905-10-01), Fenn
patent: 1327963 (1920-01-01), Ramsey
patent: 1725101 (1929-08-01), Podel
patent: 2172825 (1939-09-01), White
patent: 2312513 (1943-03-01), Wilson
patent: 2562548 (1951-07-01), Hanson
patent: 4076156 (1978-02-01), Mumford
patent: 4331249 (1982-05-01), Banich, Sr.
patent: 4346812 (1982-08-01), Banich, Sr.
patent: 4381840 (1983-05-01), Ostrowsky

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