US PATENT SUBCLASS 409 / 29
.~.~.~.~ Bevel gear having nonparallel opposing tooth flanks

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}
25  DF  .~.~ Milling with radial faced tool {2}
27  DF  .~.~.~ Adapted to cut bevel gear {3}
29.~.~.~.~ Bevel gear having nonparallel opposing tooth flanks

DEFINITION

Classification: 409/29

Bevel gear having nonparallel opposing tooth flanks:

(under subclass 27) Apparatus including means to relatively move the cutting tool and workpiece so that the resulting groove between adjacent intermeshable elements has walls that are deliberately formed so that if extended, they would meet.

(1) Note. In the generation of a bevel gear by use of a

radial face mill, normally, there will be more slight inherent variation in the spacing of the walls of the groove formed between adjacent intermeshable elements; included in this subclass is that structure wherein there is a deliberate effort to bring about additional taper of the groove.