Air evacuating closure

Details Air evacuating closure Air evacuating closure

1976-06-15

1977-04-12

McGehee, Travis S.

Receptacles

Closures

With vacuum breaker or manually operable vent

53 88, B65D 5116

Patent

active

040169995

ABSTRACT:
An air evacuating closure adapted for use with a container whereby the contents of a container can be maintained stored under a negative pressure environment after the container has been opened. The evacuating closure includes a member which forms a closure top for a container, and which closure top incorporates a pump for evacuating any air from a container. The closure also includes a vent for venting the container when under a negative pressure to facilitate the removal of the closure.

REFERENCES:
patent: 1491562 (1924-04-01), Stearns
patent: 2648474 (1953-08-01), Crook
patent: 2890810 (1959-06-01), Rohling
patent: 3672114 (1972-06-01), Sacks

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