US PATENT SUBCLASS 173 / 145
.~ Rotary drive and advance originate from same mechanical element


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

141  DF  ADVANCE CAUSING OR CONTROLLING MEANS {6}
145.~ Rotary drive and advance originate from same mechanical element {1}
146  DF  .~.~> Friction clutch or torque yielding couple in connecting train


DEFINITION

Classification: 173/145

(under subclass 141) Apparatus in which one mechanical motion converting element transmits movement from a source of power to drive the tool by rotating the tool about an axis and to simultaneously cause or control forward movement of the tool.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

840+, for a rotary driven device with means to adjust during operation the position of the device relative to its supporting structure.

175, Boring or Penetrating the Earth,

113+, for an earth boring tool combined with means to feed and rotate the tool from a single mechanical element. 408, Cutting by Use of Rotating Axially Moving Tool,

129+, for a drilling machine with a feed mechanism.

414, Material or Article Handling,

431+, for apparatus for advancing and rotating an elongated article by means adapted to engage the article between its ends.