US PATENT SUBCLASS 408 / 83
.~.~.~.~ Engaging surface subsequent to tool-action on that surface

Current as of: June, 1999
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408 /   HD   CUTTING BY USE OF ROTATING AXIALLY MOVING TOOL

72 R  DF  WITH WORK-ENGAGING STRUCTURE OTHER THAN TOOL OR TOOL-SUPPORT {13}
79  DF  .~ Frictionally engaging sides of opening in work {1}
80  DF  .~.~ Opening coaxial with tool {2}
81  DF  .~.~.~ Engaging sides of opening being enlarged by tool {2}
83.~.~.~.~ Engaging surface subsequent to tool-action on that surface

DEFINITION

Classification: 408/83

(under subclass 81) Device wherein the work-contacting structure is adapted to contact the wall of the passageway at a point that has been subjected to the cutting action of the tool, wherein the radius of the wall of the cylindrical opening contacted by the work-contacting means is the same as the radius being cut by the tool.