Latching valve for a torque-transmitting mechanism in a...

Details Latching valve for a torque-transmitting mechanism in a... Latching valve for a torque-transmitting mechanism in a...

2006-06-13

2006-06-13

Look, Edward K. (Department: 3751)

Valves and valve actuation

Fluid actuated or retarded

Piston type expansible chamber reciprocating valve actuator

C251S063500, C091S461000

Reexamination Certificate

active

07059579

ABSTRACT:
A torque-transmitting mechanism control valve disposed between a hydrostatic source of pressure and a torque-transmitting mechanism is effective to direct fluid pressure to engage the torque-transmitting mechanism when a control pressure is present, effective to retain the valve closed when source pressure is present but control pressure is not, and to retain the valve closed when torque-transmitting apply pressure is present and source pressure is not and control pressure is not present.

REFERENCES:
patent: 3898862 (1975-08-01), Kerschbaumer et al.
patent: 4763562 (1988-08-01), Haytayan

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