US PATENT SUBCLASS 409 / 319
.~.~ With plural sequentially acting cutters or with double acting cutter


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

288  DF  PLANING {14}
317  DF  .~ With means to relatively infeed cutter and work {6}
319.~.~ With plural sequentially acting cutters or with double acting cutter


DEFINITION

Classification: 409/319

With plural sequentially acting cutters or with double acting cutter:

(under subclass 317) Apparatus including (a) a first cutting tool adapted to make a first cutting pass through a workpiece and a second cutting tool adapted to follow the first cutting tool generally through the same portion of the workpiece to expand the cut of the first cutting tool, wherein the cutting tools are independent of each other, i.e., they are not on the same tool holder; or including (b) a cutting tool adapted to make a first cutting pass through a workpiece in a first direction and then make a second cutting pass in the opposite direction through the workpiece to expand the cut of the first cutting pass.

(1) Note. Included herein is a chain of tool carriers connected together and pulled sequentially through the workpiece.