US PATENT SUBCLASS 72 / 278
.~ Utilizing plural metal-deforming tools

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


72 /   HD   METAL DEFORMING

274  DF  BY PULLING WORKPIECE THROUGH CLOSED PERIPHERY DIE (E.G., ROD-, TUBE-, OR WIRE-DRAWING) {8}
278.~ Utilizing plural metal-deforming tools {5}
279  DF  .~.~> Varying speed of continuous workpiece through successive tool stations
280  DF  .~.~> Accumulating work between successive tool stations
281  DF  .~.~> Including non-coaxial closed dies
282  DF  .~.~> All closed dies coaxially aligned
283  DF  .~.~> Including a mandrel inserted within a hollow workpiece

DEFINITION

Classification: 72/278

Utilizing plural metal-deforming tools:

(under subclass 274) Subject matter comprising two or more metal-deforming instrumentalities, or the steps of using the same.

(1) Note. The second or subsequent metal-deforming tool may, or may not, be of the type peculiar to subclass 274.

SEE OR SEARCH CLASS

29, Metal Working,

33+, 592+, 650, and 700+ for method or apparatus appropriate to Class 29, which may include tension drawing as one of the steps or means in an assembling or similar operation.

83, Cutting,

120, 213+, 255+, 301+, 357, 404+, 549+, 598+, and 618+ for a

cutting device having plural cutting stations.