Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent
1998-02-12
2000-07-18
Lee, Kevin
Valves and valve actuation
Fluid actuated or retarded
Flexible wall expansible chamber reciprocating valve actuator
251 612, F16K 31126
Patent
active
060895322
ABSTRACT:
The present disclosure relates to a valve including a valve body defining an inlet port and an outlet port. The valve also includes a first diaphragm arranged and configured for opening and closing a fluid flow path between the inlet and outlet ports. The valve further includes a second diaphragm cooperating with the first diaphragm to enclose a chamber formed within the valve body. The valve is closed by applying an actuating pressure to an exterior side of the second diaphragm such that the second diaphragm mechanically causes the first diaphragm to close the fluid flow path between the inlet and outlet port.
REFERENCES:
patent: 2989282 (1961-06-01), White
patent: 3559945 (1971-02-01), Coiner et al.
patent: 3618891 (1971-11-01), Topfer
patent: 3689025 (1972-09-01), Kiser
patent: 3767159 (1973-10-01), Treul
patent: 3897041 (1975-07-01), Cowan
patent: 4376444 (1983-03-01), Michael
patent: 5529280 (1996-06-01), Satoh et al.
Air Stop Brochure; KZCO, Inc.
Exhibit 1; photograph of Ag-Chem Equipment Company Valve.
Exhibit 2; photograph of Sprang Systems Valve.
Powers Frederick Allan
Rohloff Terry Lynn
Sebion Timothy L.
Lee Kevin
Wanner Engineering, Inc.
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