.~.~ Nonsymmetrical arrangement of opening for cuttings or fluid
DEFINITION
Classification: 175/400
(under subclass 398) Apparatus in which the bit is provided with one or more openings to permit the ingress or egress of either fluid or formation cuttings, the arrangement of the opening or openings with respect to the longitudinal axis of the drive shaft for the bit being nonsymmetrical both bilaterally and radially as required by the definition of subclass 398.
(1) Note. For classification in this subclass the arrangement of the fluid or cuttings openings themselves must be nonsymmetrical regardless of whether or not the remainder of the bit is nonsymmetrical. Thus a bit which is nonsymmetrical in shape but has a central opening on the shaft axis or a plurality of equally spaced openings about the shaft axis is not included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
231, for means movable relative to a tool to control eccentric fluid emission.
