Valves and valve actuation – Valve – Seats
Patent
1998-03-18
1999-05-18
Rivell, John
Valves and valve actuation
Valve
Seats
1375274, 137527, 251 84, 251333, F16K1/22
Patent
active
059043385
ABSTRACT:
A valve, includes a housing formed with a valve seat and having an inlet port and an outlet port; and a shut-off member positioned in a passageway between the inlet port and outlet port and so adjustable as to enable a separation of the inlet port and the outlet port from one another when seated on the valve seat, wherein the valve seat exhibits a seat surface which is so inclined in circumferential direction that intersections of diametrically opposed tangents constructed on the seat surface of the valve seat define an area.
REFERENCES:
patent: 474843 (1892-05-01), Mahan
patent: 4792119 (1988-12-01), Illy
patent: 5682921 (1997-11-01), Rawson
Kesselhut Rainer
Kramig Heinrich
Unruh Roland
ARI Armaturen Albert Richter GmbH & Co. KG
Farid Ramyar
Feiereisen Henry M.
Rivell John
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