Stopper for a container such as a bottle and including slit valv

Details Stopper for a container such as a bottle and including slit valv Stopper for a container such as a bottle and including slit valv

1990-01-30

1991-03-12

Marcus, Stephen

Bottles and jars

Closures

Receptacle interior communicable with exterior with closure...

215260, 220367, B65D 5116

Patent

active

049986333

ABSTRACT:
Stopper (1) with valve (6) for a bottle, which stopper (1) and valve (6) are integral and of the same elastic material, the valve being surrounded by a circular raised edge (5) and a circular flange (4) for cooperation with a pump (15) made from plastic material.

REFERENCES:
patent: 795642 (1905-07-01), Nelson
patent: 1181926 (1916-05-01), Rooney et al.
patent: 2070377 (1937-02-01), Simmons
patent: 2168734 (1939-08-01), Freeman
patent: 3084823 (1963-04-01), Reichstein
patent: 3557986 (1971-01-01), Poole, Jr.
patent: 3602387 (1971-08-01), Patnaude
patent: 3670915 (1972-06-01), Forman
patent: 3822720 (1974-07-01), Souza
patent: 4558795 (1985-12-01), Logue

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