US PATENT SUBCLASS 72 / 306
.~ Plural or complex apparatus (e.g., with plural operations)

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

293  DF  BY USE OF NON-DEFORMING WORK-GRIPPING CLAMP AND RELATIVELY MOVABLE CLAMP, TOOL OR WORK-FORCER {9}
306.~ Plural or complex apparatus (e.g., with plural operations) {1}
307  DF  .~.~> With means to advance elongated work (e.g., pipe elbow crimper)

DEFINITION

Classification: 72/306

Plural or complex apparatus (e.g., with plural operations):

(under subclass 293) Apparatus comprising (a) three or more relatively movable tools, or (b) additional metal-deforming apparatus of a type other than that of subclass 293 and which itself constitutes subject matter for this class (72).

(1) Note. This subclass is the locus for patents relating to a plural tool couple* or a tool complex* and involving a work clamp which is nondeforming, per se. Typically, the machine performs a plurality of distinct metal deforming operations on the clamped work. Also included are all combinations of two or more metal-deforming machines not provided for above, wherein a work clamp is a claimed element of one machine.

SEE OR SEARCH THIS CLASS, SUBCLASS:

295+, for a possible combination of two or more metal-deforming machines, wherein one machine effects deformation by relatively movable clamps.