US PATENT SUBCLASS 408 / 59
.~.~ Conducting channel extending to end of tool

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

56  DF  WITH MEANS TO APPLY TRANSIENT, FLUENT MEDIUM TO WORK OR PRODUCT {2}
57  DF  .~ Including tool with duct {3}
59.~.~ Conducting channel extending to end of tool

DEFINITION

Classification: 408/59

(under subclass 57) Device wherein the tool has a cutting edge at its axial tip, and wherein the closed, tube-like passageway includes a port at the tip of the tool.

(1) Note. The port of a passageway visible in an elevation taken along the tool-axis toward the tool is considered to be at the tip of the tool.

SEE OR SEARCH THIS CLASS, SUBCLASS:

204+, for a tool having a passageway extending to the tip thereof, which passageway is to receive an undisturbed core of the workpiece.