US PATENT SUBCLASS 60 / 392
.~.~ Feedback includes plural movable valve parts

Current as of: June, 1999
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60 /   HD   POWER PLANTS

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
388  DF  .~ Full range correspondence of position of external manipulator and motor positioned member effected by feedback linkage {4}
392.~.~ Feedback includes plural movable valve parts

DEFINITION

Classification: 60/392

(under subclass 388) Apparatus in which movement of the manipulator moves one surface of a valving means to initiate flow of motive fluid to the output motor, the movement of the output motor to its selected position moving or carrying the other surface of the valving means to a position stopping the flow of motive fluid.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type,

374+, for a motor having working member feedback to motive fluid control having plural movable valve parts.