Valve

Details Valve Valve

1993-07-28

1995-05-30

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Bi-directional flow valves

1374938, 137526, 137854, F16K 1719

Patent

active

054193664

ABSTRACT:
A valve assembly for automatic venting of excess suction or pressure in a fluid conduit such as a sewage drain line. An elastomeric diaphragm is drawn by a stressed stem against a valve plate having a passageway therethrough which is normally closed by the diaphragm. A predetermined differential pressure across the diaphragm will lift the diaphragm away from the plate to open the passageway.

REFERENCES:
patent: 4181146 (1980-01-01), Goglio
patent: 4379470 (1983-04-01), Reutter
patent: 4502502 (1985-03-01), Krug
patent: 4513784 (1985-04-01), Farrand
patent: 4962548 (1990-10-01), van Deventer et al.
patent: 5067449 (1991-11-01), Bonde
patent: 5129426 (1992-07-01), Boehmer

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