Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1977-05-12
1978-09-12
Weakley, Harold W.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
222494, F16K 3112
Patent
active
041129717
ABSTRACT:
A valve intended to open in response to a pressure difference between the interior of the valve and the exterior thereof comprises a diaphragm which in its closing position is conical. The diaphragm has an opening which is normally closed by means of a valve stem. Arrangements are made to prevent communication between the interior of the valve and the exterior thereof until said diaphragm has been deformed to a substantially planar shape.
REFERENCES:
patent: 1709948 (1929-04-01), Proctor
patent: 1880103 (1932-09-01), Murdoch
patent: 3782410 (1974-01-01), Steuby
patent: 3826280 (1974-07-01), Perham
KeNova AB
Weakley Harold W.
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