US PATENT SUBCLASS 173 / 153
.~.~ Drive motor exhaust is motive fluid for advance motor

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

141  DF  ADVANCE CAUSING OR CONTROLLING MEANS {6}
152  DF  .~ Motor causes or controls advance {8}
153.~.~ Drive motor exhaust is motive fluid for advance motor

DEFINITION

Classification: 173/153

(under subclass 152) Apparatus in which the motor for causing or controlling forward movement is a fluid motor and in which the tool is driven by a separate fluid motor, the motive fluid exhausted by the drive motor being utilized as motive fluid in the motor causing or controlling forward movement.