Actuator controller
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United States of America Patent
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-
May 24, 2011
Grant Date -
Sep 9, 2010
app pub date -
Oct 30, 2006
filing date -
Dec 13, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Actuator controller comprising a body (12) with an inlet port (14) coupled to a source of pressurized fluid and in flow communication with primary and secondary spool bores (16, 20); primary and secondary spools (60, 62); first and second cross flow ports (48, 52) communicating said primary and secondary spool bores, compression and expansion outlet ports (53, 54) for applying pressurized fluid to a return-biased actuator (110); and a venting outlet port (23); wherein return action of the working piston of the actuator is facilitated with aid of pressurized fluid already gained in the system.
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