US PATENT SUBCLASS 91 / 515
.~.~.~ For synchronization of motors

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}
514  DF  .~.~ Pressure responsive valve divides motive fluid between motors {2}
515.~.~.~ For synchronization of motors

DEFINITION

Classification: 91/515

For synchronization of motors:

(under subclass 514) Apparatus wherein the fluid pressure or flow responsive valve comprises (a) means for equalizing fluid pressure or flow to the plurality of motors, or (b) means for synchronizing the operation of the plurality of motors.

SEE OR SEARCH THIS CLASS, SUBCLASS:

171, for means controlling plural working members for synchronization thereof by sensing the difference in the distance the members have traveled.

532, for noncondition responsive means for insuring equal motive fluid supply to plural motors.