Universal hydraulic valve

Details Universal hydraulic valve Universal hydraulic valve

1994-05-03

1995-08-01

Look, Edward K.

Motors: expansible chamber type

With motive fluid valve

Relatively movable serial valves

91448, 137596, F15B 1108, F15B 1304

Patent

active

054372160

ABSTRACT:
A universal hydraulic stop valve has housing having check valves in a check valve bore. A needle in needle bore has spaced apart seals which may alternately seal against valve seats on adjustable knobs, with movement of the needle, which may be mechanically linked to a machine element moved by a hydraulic actuator. The universal hydraulic valve sets accurate starting and stopping positions, and also provides for gradual feathered stops.

REFERENCES:
patent: 4325402 (1982-04-01), Akkerman et al.
patent: 4360187 (1982-11-01), Chapman
patent: 4716933 (1988-01-01), Stoever et al.
patent: 4738279 (1988-04-01), Kropp
patent: 4854222 (1989-08-01), Vick
patent: 4899097 (1990-02-01), Chapman
patent: 5038671 (1991-08-01), Ueno
patent: 5220861 (1993-06-01), Kamimura
Brochure F (Sidewinder by Chapman, 1991).
Photographs H-J (Photographs of Olympian Camera Crane) 1981.
Brochure K (The Olympian Camera Crane, 1991).

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