Fluid powered actuator system

Details Fluid powered actuator system Fluid powered actuator system

1985-08-07

1988-07-26

Hershkovitz, Abraham

Motors: expansible chamber type

Relatively movable working members with one having motive...

Synchronizing in response to sensed difference in positions

91189R, 91387, 91513, 91515, 91521, 92131, F01L 1500

Patent

active

047592583

ABSTRACT:
A fluid powered actuator system includes two identical fluid powered actuators operable by respective supply pressures which are controlled by respective identical valve arrangements. Operating positions of flow control elements of the valve arrangements are applied through respective couplings to a differential arrangement which operates, if these positions differ by an unacceptable amount, to apply an error indication through respective coupling to prevent the supply pressures from being applied to the respective actuators.

REFERENCES:
patent: 3095784 (1963-07-01), Colhoun
patent: 3124041 (1964-03-01), McMurtry
patent: 3401600 (1968-09-01), Wood
patent: 3402553 (1968-09-01), Mercier
patent: 3765306 (1973-10-01), Luft
patent: 3850081 (1974-11-01), Joelson
patent: 4231284 (1980-11-01), Smith
patent: 4397222 (1983-08-01), Glaze
patent: 4484637 (1984-11-01), Mayer
patent: 4585024 (1986-04-01), Esseniyi

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