US PATENT SUBCLASS 175 / 345
.~.~.~ Longitudinal axis cutter

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}
344  DF  .~.~ Noncutting portion forwardly of rolling cutter (e.g., reamer) {1}
345.~.~.~ Longitudinal axis cutter {2}
346  DF  .~.~.~.~> Separable support for cutter axle
347  DF  .~.~.~.~> Removable axle or bushing

DEFINITION

Classification: 175/345

(under subclass 344) Apparatus in which the rolling cutter element is mounted on the bit head on an axis which extends in the same general direction as the axis of the bit.

(1) Note. The cutter axis has been considered as extending in the general direction of the axis of the bit when it is disclosed as inclined to the axis of the bit at an angle of less than 30 deg..

SEE OR SEARCH THIS CLASS, SUBCLASS:

348+, for a rolling cutter element mounted on a bit on a longitudinal axis.