US PATENT SUBCLASS 173 / 176
.~ Drive means responsive to torque or speed condition

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

2  DF  AUTOMATIC CONTROL OF POWER OPERATED MEANS {4}
176.~ Drive means responsive to torque or speed condition {5}
177  DF  .~.~> Fluid pressure change controls drive
178  DF  .~.~> Having torque responsive clutch
179  DF  .~.~> With speed responsive governor
180  DF  .~.~> With torque indicator
181  DF  .~.~> Having torque sensor {2}

DEFINITION

Classification: 173/176

Drive means responsive to torque speed condition:

(under subclass 2) Apparatus in which the power operated means comprises a drive means and the sensing means senses either (1) a condition of force applied to the tool to move the tool about an axis or (2) the rate of motion of the drive means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.5+, for a rotary tool drive which yields under torsional load and delivers torsional impact on a tool.

SEE OR SEARCH CLASS

81, Tools,

467+, for an assembling type tool with predetermined overload yielding means.