Storage bin closure with liquid seal

Details Storage bin closure with liquid seal Storage bin closure with liquid seal

1979-11-13

1981-08-18

Lowrance, George E.

Receptacles

Closures

Closure guided in reciprocating movement

220228, 220260, 220346, B65D 4320, B65D 4326, B65D 5306

Patent

active

042842034

ABSTRACT:
Closure apparatus for the opening in the top of a storage bin or the like, including means for providing a liquid seal between the inside of the storage bin and the outside atmosphere. The apparatus includes a reservoir surrounding the opening in the storage bin and a movable gate structure including a downwardly extending wall that is lowered into the reservoir when the gate structure is moved into a closed position.

REFERENCES:
patent: 808320 (1905-12-01), Valerius
patent: 1554773 (1925-09-01), Wiggins
patent: 2995505 (1961-08-01), Guild
patent: 3946772 (1976-03-01), Mize

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