Device for resetting servo actuator to neutral position

Details Device for resetting servo actuator to neutral position Device for resetting servo actuator to neutral position

1988-11-25

1990-06-26

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

With safety means operable upon input signal loss

91363A, 91453, 91459, F15B 2000

Patent

active

049361961

ABSTRACT:
A neutral position resetting device for a servo actuator is described, having reset means that is actuated when the control of the servo actuator by actuator valve means becomes inoperative. The reset means ordinarily separated from a spool of the actuator valve means resets the servo actuator to a neutral position by applying a driving force and forcibly moving the spool.

REFERENCES:
patent: 2773660 (1956-12-01), Rasmussen
patent: 2819030 (1958-01-01), Christensen
patent: 2824712 (1958-02-01), Rasmussen et al.
patent: 2973013 (1961-02-01), Myers
patent: 4601169 (1986-07-01), Hesse et al.

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