US PATENT SUBCLASS 173 / 213
MEANS TO DRIVE TOOL ABOUT AN AXIS

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

213MEANS TO DRIVE TOOL ABOUT AN AXIS {7}
214  DF  .~> Plural tools
215  DF  .~> Endless flexible drive means
216  DF  .~> Gear drive
217  DF  .~> Electric motor
218  DF  .~> Fluid motor {4}
164  DF  .~> Means to hold and relatively rotate sections of tool shaft
165  DF  .~> Relatively fixed drive for an advancing tool {2}

DEFINITION

Classification: 173/213

MEANS TO DRIVE TOOL ABOUT AN AXIS:

(under the class definition) Apparatus including means to impart torque to a tool and move the tool about an axis.

(1) Note. The movement of the tool about an axis may be unidirectional or oscillating.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5+, for an automatic control of a power operated advance means in response to a torque or speed condition of the drive.

93+, for an impact type tool drive having an anvil arranged to deliver torsional impact to a tool.

94+, for a hammer head which moves about an axis.

104+, for a tool impacting device combined with means to move the tool about an axis.

140, for drive gearing which advances relative to a source of power, and including gearing moving a tool about an axis. 145+, for a rotating tool drive which originates from the same mechanical element as the means causing or controlling advance.

148+, for an advance causing or controlling means for a tool advancing relative to the tool drive, said drive generally moving the tool about an axis.

176+, for an automatic control of a drive means in response to a torque speed condition.