US PATENT SUBCLASS 72 / 308
.~ Clamp is active metal-deforming element

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}
308.~ Clamp is active metal-deforming element {2}
309  DF  .~.~> With coacting movable tool
310  DF  .~.~> Clamp rotatable about fixed axis (e.g., bending brake)

DEFINITION

Classification: 72/308

Clamp is active metal-deforming element:

(under subclass 293) Subject matter which accomplishes metal deformation, the forcible movement of said work-gripping instrumentality.

(1) Note. In devices of this subclass, deformation is

effected by the clamp's forcible movement of clamped work against one or more tool elements. For a device involving a movable work clamp used merely to advance or index work between operations, see subclass 311.

SEE OR SEARCH THIS CLASS, SUBCLASS:

80+, for means to hold and rotate work during metal deforming by tool.

149+, for metal deforming by moving work holder form and work-contacting wiper.

274+, for moving work gripper in rod-, tube-, or wire-drawing.

295+, for a method or machine employing two or more relatively movable work clamps, any or all of which may constitute active metal-deforming element. 311, for clamp which is movable while holding work, and see (1) Note above.