Fluid flow control apparatus

Details Fluid flow control apparatus Fluid flow control apparatus

1990-10-02

1992-09-08

Hepperle, Stephen M.

Fluid handling

Systems

Programmer or timer

137474, F16K 2116

Patent

active

051449803

ABSTRACT:
A fluid flow control apparatus particularly useful as an automatic shut-off valve includes an arrangement which vents the interior of the valve to the atmosphere before the valve is closed by a membrane seating against a valve seat, thereby preventing the possibility of the valve stabilizing in a partially-open condition.

REFERENCES:
patent: 906285 (1908-12-01), Von Post
patent: 3826280 (1974-07-01), Perham
patent: 4781217 (1988-11-01), Rosenberg
patent: 4889154 (1989-12-01), Rosenberg
patent: 4949747 (1990-08-01), Rosenberg

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