US PATENT SUBCLASS 175 / 342
.~.~ Adjustable cutter element

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

327  DF  BIT OR BIT ELEMENT {21}
331  DF  .~ Rolling cutter bit or rolling cutter bit element {26}
342.~.~ Adjustable cutter element

DEFINITION

Classification: 175/342

(under subclass 331) Apparatus in which means are provided to selectively hold the rolling cutter element in different positions with respect to the bit head.

SEE OR SEARCH THIS CLASS, SUBCLASS:

382+, for an adjustable nonrolling cutter element.