US PATENT SUBCLASS 83 / 876
.~.~ By use of plural independent rotary blades

Current as of: June, 1999
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83 /   HD   CUTTING

861  DF  OTHER THAN COMPLETELY THROUGH WORK THICKNESS OR THROUGH WORK PRESENTED {6}
875  DF  .~ Grooving {1}
876.~.~ By use of plural independent rotary blades {2}
877  DF  .~.~.~> Forming common groove
878  DF  .~.~.~> Blades turning about perpendicular axes

DEFINITION

Classification: 83/876

(under subclass 875) By use of plural independent rotary blades: Method or apparatus comprising use of a first cutting tool that is generally planar and circular in shape, adapted to rotate about an axis normal to the planar surface of the tool during cutting, including a cutting edge extending generally about the circular perimeter; and use of a second cutting tool that is also generally planar and circular in shape, adapted to rotate about an axis normal to the planar surface thereof during cutting, including a cutting edge

extending generally about the circular perimeter.