US PATENT SUBCLASS 91 / 518
.~.~ Motive fluid control valve responsive to pressure in supply line to or exhaust line from motor which it modifies

Current as of: June, 1999
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91 /   HD   MOTORS: EXPANSIBLE CHAMBER TYPE

508  DF  PLURAL RELATIVELY MOVABLE OR RIGIDLY INTERCONNECTED WORKING MEMBERS {11}
511  DF  .~ Condition responsive means for modifying working member operation {5}
518.~.~ Motive fluid control valve responsive to pressure in supply line to or exhaust line from motor which it modifies

DEFINITION

Classification: 91/518

Motive fluid control valve responsive to pressure in supply line to or exhaust line from motor which it modifies:

(under subclass 511) Apparatus wherein the means comprises a motive fluid control valve responsive to a change in the sensed condition in the motive fluid inlet line to the motor or in the motive fluid exhaust line from the motor to change the operation of said motor.