US PATENT SUBCLASS 175 / 229
.~ Rotation of bit actuates lubricant feed means


Current as of: June, 1999
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175 /   HD   BORING OR PENETRATING THE EARTH

227  DF  WITH STORAGE MEANS FOR BIT LUBRICANT CARRIED BY BIT OR SHAFT {2}
229.~ Rotation of bit actuates lubricant feed means


DEFINITION

Classification: 175/229

(under subclass 227) Apparatus in which the friction reducing fluid is supplied or fed to the cutter or portion thereof by means actuated by the rotation of the tool or the cutter.