Receptacles – Closures – With closure opening arrangements for means
Patent
1985-11-18
1986-12-02
Hall, George T.
Receptacles
Closures
With closure opening arrangements for means
220345, 220263, 220264, 49362, 49404, B65D 4326
Patent
active
046258884
ABSTRACT:
This invention relates to a ground actuated lid operating system including (1) a pressure release lid apparatus operable to selectively open and close a pressure lid member to release fluid pressure from the interior of a silo structure; and (2) an entrance lid closure apparatus operable to open and close a closure lid member without leaving the area of the support surface adjacent the silo structure. The pressure release lid apparatus has the pressure lid member biased to a closed positive seal condition and opened through the use of a lid actuator assembly and lid linkage assembly which is operable from a position adjacent to a side wall of the silo structure not requiring the climbing thereof. The entrance lid closure apparatus is provided with an axially movable closure lid member which is movable from the open condition to add granular materials to the silo structure and laterally and subsequently downwardly to a positive sealed position about a silo entrance opening. The pressure release lid apparatus and the entrance lid closure apparatus are operable from a ground surface adjacent to a silo structure not requiring the climbing thereof which is a time, labor, saving function plus providing safety features.
REFERENCES:
patent: 3733764 (1973-05-01), Hege
patent: 4267936 (1981-05-01), Pavlicek
Hall George T.
Rein Phillip A.
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