Servomechanism with idle gear feedback

Details Servomechanism with idle gear feedback Servomechanism with idle gear feedback

1986-10-21

1988-09-13

Garrett, Robert E.

Motors: expansible chamber type

With signal, indicator or inspection means

91362, 91363R, 91381, 417498, 13762565, F15B 912, F15B 1316, F15B 903

Patent

active

047700815

ABSTRACT:
A servomechnism made up of a relatively small number of components has a pintle that is moved back and forth by a hydraulic actuator, an input member disposed opposite to the pintle and capable of reciprocating parallel with the pintle, a spool capable of reciprocating parallel to both the input member and the pintle, a pair of idle gears pivoted to the spool, and a hydraulic circuit. The input member has a rack opposite to a rack formed on the pintle. The spool is mounted between these racks. The idle gears are in mesh with the racks. When the input member is moved to shift the spool out of its neutral position, the actuator is unlocked to return the spool to its neutral position.

REFERENCES:
patent: 1119324 (1914-12-01), Sprater
patent: 1563282 (1925-11-01), Jessup
patent: 2874542 (1959-02-01), Tear
patent: 2915034 (1959-12-01), Russell
patent: 2974641 (1961-03-01), Brown et al.
patent: 4161905 (1979-07-01), Ota
patent: 4235156 (1980-11-01), Olsen
patent: 4526342 (1985-07-01), Wakefield

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