Storage tank shutoff valve

Details Storage tank shutoff valve Storage tank shutoff valve

1994-01-14

1995-12-05

Walton, George L.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

137430, 137446, 141 59, 141198, F16K 3126, F16K 3300

Patent

active

054720125

ABSTRACT:
A valve assembly for automatically shutting off the flow of a pressurized liquid to a storage tank includes a cam that is rotated in response to the level of a liquid in the storage tank. A follower moves a poppet valve axially with a housing as a nonlinear function of rate of cam rotation. The poppet valve is moved to a closed position to terminate flow of a liquid to the storage tank whenever the liquid level within the storage tank reaches a predetermined level.

REFERENCES:
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patent: 5163470 (1992-11-01), Maeshiba
patent: 5179984 (1993-01-01), Sharp
patent: 5187979 (1993-02-01), Edmark, III
patent: 5207241 (1993-05-01), Babb
patent: 5235999 (1993-08-01), Lindquist et al.

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