US PATENT SUBCLASS 173 / 152
.~ Motor causes or controls advance

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

141  DF  ADVANCE CAUSING OR CONTROLLING MEANS {6}
152.~ Motor causes or controls advance {8}
153  DF  .~.~> Drive motor exhaust is motive fluid for advance motor
154  DF  .~.~> Drive motor generates advance motor motive energy
155  DF  .~.~> Advance motor exhaust is motive fluid for drive motor
156  DF  .~.~> With lock or brake operable during advance
157  DF  .~.~> Common control element for advance and drive motors {1}
159  DF  .~.~> Common energy supply for advance and drive motors
160  DF  .~.~> Advance means includes relatively movable transmission element
161  DF  .~.~> Advance motor control in tool drive manipulating handle

DEFINITION

Classification: 173/152

(under subclass 141) Apparatus in which the means for causing or controlling forward movement of the tool includes a motor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

59+, for work cleansing by motive fluid for the drive motor or advance causing or controlling motor.

79, for a cleansing fluid passage provided in an advance causing or controlling motor.

142+, for advance causing or controlling means operated solely by vibrations from a reciprocating element of a means causing drive motion of a tool, said reciprocating element usually being a motor or motor driven.

144, for reciprocatory drive motion and advance which originates from the same mechanical element, said element usually being motor driven.

145+, for rotary drive motion and advance which originate from the same mechanical element, said element usually being motor driven.