Valves and valve actuation – Electrically actuated valve – With means to bias valve open
Patent
1989-06-27
1991-06-11
Rosenthal, Arnold
Valves and valve actuation
Electrically actuated valve
With means to bias valve open
25112901, 25112908, 25112907, 25112917, F16K 3108
Patent
active
050226290
ABSTRACT:
Fluid flow control valve in which bidirectional displacement of a valve operator is effected by momentary utilization of high current flow in a permanent magnetic flux field and longer term utilization of minimal current flow with in said flux field to maintain valve operator position in limiting displaced condition.
REFERENCES:
patent: 4142684 (1979-03-01), Schweitzer
patent: 4350319 (1982-09-01), Kawata et al.
patent: 4726389 (1988-02-01), Minoura et al.
Kimble, Moving Coil Actuators, in "Machine Design" at pages 117-121 (Sep. 10, 1987).
Interface, Inc.
Rosenthal Arnold
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