Sealing hopper closure assembly

Details Sealing hopper closure assembly Sealing hopper closure assembly

1975-03-24

1976-12-14

Spar, Robert J.

Dispensing

With flow controller or closure

Plural and/or carried by separably attached element

105280, 105283, 105308E, 298 30, 302 62, B60P 156, B61D 718, B61D 722, B61D 726

Patent

active

039970892

ABSTRACT:
A discharge gate assembly for sealing and controlling the flow of particulate material from a discharge opening in a hopper of the type used on semi-trailers, railroad cars or storage bins is disclosed wherein the discharge gate assembly comprises a frame which is secured over the discharge opening and has a discharge passageway through which particulate material can fall when the hopper is being emptied, a valve means in the discharge passageway to regulate the flow of material through the discharge passageway, a seal between the frame and hopper to prevent contamination from entering the discharge opening and hopper, and a cover means for sealing the lower end of the discharge passageway to prevent entry of any contaminants.

REFERENCES:
patent: 1517245 (1924-12-01), Martin
patent: 2821433 (1958-01-01), Hamlet
patent: 3296980 (1967-01-01), Fritz
patent: 3396675 (1968-08-01), Stevens

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