Closure for container

Details Closure for container Closure for container

1973-08-07

1976-04-13

Price, William I.

Receptacles

Closures

With vacuum breaker or manually operable vent

220352, 220367, 220373, 220 94R, 220DIG27, 220361, B65D 5116

Patent

active

039498972

ABSTRACT:
A closure to be slidably fitted in a container to exclude air from the surface of the material in said container or to be withdrawn to allow access to said material, includes a disc-like closure body, an air vent through said body, a plug to close said vent, a flexible handle attached to said body, characterized by a connection between said plug and said handle whereby force on said handle to withdraw said closure retracts said plug from said vent.

REFERENCES:
patent: 2657817 (1953-11-01), Alvear
patent: 2787397 (1957-04-01), Radford
patent: 2884151 (1959-04-01), Biederman
patent: 3080088 (1963-03-01), Corrinet
patent: 3212665 (1965-10-01), Duncan
patent: 3375949 (1968-04-01), Hidding
patent: 3759416 (1973-09-01), Constantine

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