.~ Rolling cutter bit or rolling cutter bit element {26}
378
.~.~ Irregular tooth cutter row
DEFINITION
Classification: 175/378
(under subclass 331) Apparatus in which the rolling cutter element has (1) a row of circumferential cutting edges of nonuniform size, shape, or pitch or other cutting edge arrangements (e.g., spacing) which are adapted to prevent repeated engagement or "tracking" of the cutting edges with the same point on the earth formation or (2) a plurality of circumferential rows of cutting edges and in which there is an abrupt change in shape or pitch between adjacent rows.
(1) Note. Under part (2) a mere gradual change in size or shape of the cutting edges to allow for the taper of the cutter element is excluded.
SEE OR SEARCH CLASS
15, Brushing, Scrubbing, and General Cleaning,
104.13, for pipe cleaning cutter wheels which have irregularly spaced teeth for the same purpose.
