Device for controlling displacement of a moving member, such as

Details Device for controlling displacement of a moving member, such as Device for controlling displacement of a moving member, such as

1987-02-03

1988-08-30

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

91375R, 91376R, 98 2, 13762521, F16N 31124, F15B 910, F16K 4900

Patent

active

047670967

ABSTRACT:
A device for controlling the displacement of a moving member by means of of a fluid distributor connecting a single-acting actuator for displacing the moving member to a source of fluid under pressure and to an exhaust, wherein the fluid distributor comprises a fixed element (68) having hoses providing fluid connections to the actuator, to the source of fluid under pressure, and to the exhaust, a moving element (64) constrained to be displaced by manually-operated control means, and a moving element (66) constrained to move with the moving member or the piston rod of its actuator. The invention is particularly applicable to controlling the displacement of flaps in an installation for heating and ventilating or for air conditioning a motor vehicle.

REFERENCES:
patent: 2490509 (1949-12-01), Carleton
patent: 3254674 (1966-06-01), Leask
patent: 3731729 (1973-05-01), Beatenbough et al.
patent: 4665799 (1987-05-01), Bouvot

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