Thermal manual emergency shut off valve

Details Thermal manual emergency shut off valve Thermal manual emergency shut off valve

1978-10-13

1980-10-28

Bell, Jr., Houston S.

Fluent material handling, with receiver or receiver coacting mea

Multiple passage filling means for diverse materials or flows

With valve

141192, 141388, 251294, B65B 326

Patent

active

042301610

ABSTRACT:
Multi position flow check valves for both liquid and vapor filler conduits having essentially two positions, a closed position, and a wide open flow position to activate the latch, the valve being automatically closed from the flow position under hazardous conditions including equipment accidents and fires, and open only when manually opened for latching purpose in tank filling operations at bulk storage stations. One hazardous condition includes an appreciable stretch strain exerted on filler hoses connected between the storage supply tank and the mobile delivery tank sufficient when dangerous to close the valves and prevent serious escape of gases in event of hose rupture. Non-extendible elements providing the differential criteria also serve as remote shut-off controls, including manual, automatic and thermal for safety termination of a refilling operation.

REFERENCES:
patent: 1801750 (1931-04-01), McEachern
patent: 2700487 (1955-01-01), Thoresen et al.
patent: 2884024 (1959-04-01), Larkin et al.
patent: 2889688 (1959-06-01), Jones et al.
patent: 3165236 (1965-01-01), Beazer et al.
patent: 3260554 (1966-07-01), Heiland

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