US PATENT SUBCLASS 173 / 106
.~.~.~ Rotation motor exhaust is motive fluid for hammer motor

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

90  DF  IMPACTING DEVICES (E.G., HAMMERS) {19}
104  DF  .~ With means for rotating tool {2}
105  DF  .~.~ Rotated by separate motor {3}
106.~.~.~ Rotation motor exhaust is motive fluid for hammer motor

DEFINITION

Classification: 173/106

(under subclass 105) Apparatus in which the hammer head is driven by a fluid motor and means are provided to convey fluid which has been utilized in a fluid motor which causes the tool to move about an axis to the second motor which drives the hammer head, said fluid being further utilized as motive fluid in said second motor.