US PATENT SUBCLASS 408 / 101
.~.~.~.~ Screw coaxial with tool

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}
87  DF  .~ Having tool-opposing, work-engaging surface {8}
99  DF  .~.~ With means to move tool relative to other work-engaging structure along tool-axis {1}
100  DF  .~.~.~ Having sliding engagement therewith {1}
101.~.~.~.~ Screw coaxial with tool

DEFINITION

Classification: 408/101

(under subclass 100) Device wherein the camming means includes a helically disposed inclined plane rotatable about an axis in alignment with the tool-axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

137, for a screw used to drive a tool to move axially in the absence of a work-contacting structure.