(under subclass 331) 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 may have cutting means on its periphery or on its radial face.
(2) Note. The cutter axis has been considered longitudinal 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:
345+, for rolling cutter reamers which are mounted on an axis extending longitudinally of the bit.
