US PATENT SUBCLASS 173 / 117
.~ Hammer head driven by electric motor

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

90  DF  IMPACTING DEVICES (E.G., HAMMERS) {19}
117.~ Hammer head driven by electric motor

DEFINITION

Classification: 173/117

(under subclass 90) Apparatus in which the motion of the hammer head is caused by an electric motor.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure, appropriate subclass for an electric motor, including a hammer head claimed as a mere load, and particularly

50, for a dynamo-electric rotary portable or hand tool motor.

318, Electricity: Motive Power Systems,

114, for an impact, mechanical shock or vibration producing electric motor system.