US PATENT SUBCLASS 173 / 69
.~.~.~.~ Motor exhaust throttled

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}
69.~.~.~.~ Motor exhaust throttled

DEFINITION

Classification: 173/69

(under subclass 67) Apparatus in which the motor is provided with a throttle valve to control the exhaust of motive fluid from the motor, and actuation of said valve to control exhaust also functions to stop the distributor and maintain cleansing fluid supply through one working chamber.