US PATENT SUBCLASS 409 / 44
.~.~.~.~ Dual cutters

Current as of: June, 1999
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409 /   HD   GEAR CUTTING, MILLING, OR PLANING

1  DF  GEAR CUTTING {11}
10  DF  .~ Gear tooth shape generating {7}
42  DF  .~.~ Using reciprocating or oscillating cutter {2}
43  DF  .~.~.~ Bevel gear cutting {2}
44.~.~.~.~ Dual cutters

DEFINITION

Classification: 409/44

Dual cutters:

(under subclass 43) Apparatus or method including the use of a first cutting tool for formation of an intermeshable element and the use of a second distinct cutting tool for formation of an intermeshable element, wherein the second cutting tool is of similar or generally allochiral shape to the first cutting tool and wherein the first and second cutting tools are relatively movable as assembled in the apparatus.

(1) Note. The second cutting tool of this subclass may cut the same workpiece as the first but at a different location, may cut a second workpiece in the same manner as the first cutting tool cuts the first workpiece, or may cut a surface cut by the first cutting tool.

(2) Note. "Allochiral" may be defined as (a) reversely congruent, (b) mirror imagelike or, (c) similar but opposite, as the right hand is similar but opposite to the shape of the left hand.