US PATENT SUBCLASS 173 / 68
.~.~.~.~ Motor inlet throttle valve maintains distributor fixed

Current as of: June, 1999
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173 /   HD   TOOL DRIVING OR IMPACTING

197  DF  WORK CLEANSING {10}
59  DF  .~ By motive fluid for drive motor or advance causing or controlling motor {7}
66  DF  .~.~ Fluid supplied through working chamber of idled cyclically operable drive motor {1}
67  DF  .~.~.~ Supplied through distributor maintained in fixed position {3}
68.~.~.~.~ Motor inlet throttle valve maintains distributor fixed

DEFINITION

Classification: 173/68

(under subclass 67) Apparatus in which the motor is provided with a throttle valve controlling the inlet of motive fluid, and the throttle valve is adapted either by direct engagement or through a linkage to stop relative movement of the distributor for the purpose of maintaining cleansing fluid supply through one working chamber.