US PATENT SUBCLASS 173 / 107
.~.~.~ Motive fluid supplied to rotation motor is hammer motor exhaust

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}
107.~.~.~ Motive fluid supplied to rotation motor is hammer motor exhaust

DEFINITION

Classification: 173/107

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

said second motor.