US PATENT SUBCLASS 60 / 552
.~.~.~ Mechanical feedback to manual control controls power fluid to establish position of working member of master

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

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
533  DF  .~ Pulsator {25}
547.1  DF  .~.~ With control of or by a separate power fluid, etc. {9}
552.~.~.~ Mechanical feedback to manual control controls power fluid to establish position of working member of master {2}
553  DF  .~.~.~.~> With distinct piston or diaphragm exposed to pulsator pressure imparting feel to manual control
554  DF  .~.~.~.~> Having load deformable means between master working member and motor thrust means adjusting bias of manual control

DEFINITION

Classification: 60/552

(under subclass 547) Apparatus with a manual controller for the feed of power fluid to the motor there being structure moved or carried by the working member of the master to discontinue the feed of power fluid upon a movement of the working member proportional to the movement of the manual controller.

SEE OR SEARCH THIS CLASS, SUBCLASS:

388+, for a nonpulsator pressure fluid source and motor having a full range correspondence of the position of an external manipulator and a motor positioned member effected by feedback linkage.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type,

358+, for motor, per se, or with a merely nominal output having a working member position feed back to motive fluid control.