US PATENT SUBCLASS 72 / 323
.~.~.~ Plural die surface portions and coacting tools

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}
316  DF  .~ Clamp structure constitutes sole initial metal-deforming force-reaction means (i.e., is passive tool) {4}
322  DF  .~.~ With die surface extending from clamp jaw {1}
323.~.~.~ Plural die surface portions and coacting tools

DEFINITION

Classification: 72/323

Plural die surface portions and co-acting tools:

(under subclass 322) Subject matter utilizing two or more work-shape-imparting areas extending from clamp jaw structure, and a relatively movable tool associated with each area and effective to force work against its associated shape-imparting area at some time during an operation of the class type.

(1) Note. A device of this type is commonly used to bend the two end portions of a centrally clamped rod or bar into U-shaped form against cheeks on the clamp jaws.

SEE OR SEARCH THIS CLASS, SUBCLASS:

400+, for a similar tool arrangement (opposed face tool complex*) but without a claimed clamp.