US PATENT SUBCLASS 72 / 382
.~.~ Comprising yieldable tool or face portion


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

380  DF  BY RELATIVELY MOVABLE OFFSET TOOL-FACES (E.G., FOR BENDING OR DRAWING) {4}
381  DF  .~ Embodying three or more coacting relatively movable tools (i.e., tool complex) {2}
382.~.~ Comprising yieldable tool or face portion


DEFINITION

Classification: 72/382

(under subclass 381) Comprising yieldable tool or face portion: Device wherein the face of one of said tools is so constructed, mounted, or connected to an actuating power train, that during a metal-deforming operation a portion of said face, while in contact with work, is deflected or bodily displaced with respect to another portion of said face.

(1) Note. A device of this subclass typically comprises a tool couple, one element of which has resiliently constructed or resiliently mounted face portion (i.e., less than the entire tool face) which yields upon forcible contact with work during deformation by said face, thus moving with respect to another face portion of the same tool and so modifying the effect of a simple tool couple.

(2) Note. A second included type device employs a "floating", yieldable, or shiftable mandrel, core, or the like interposed between two portions of work which are acted upon by a tool couple.

SEE OR SEARCH THIS CLASS, SUBCLASS:

396+, for a yieldable face portion or auxiliary tool in opposed-face-complex

465.1+, for a flexible or yieldable tool.