US PATENT SUBCLASS 72 / 358
.~.~ Tool portion enters cavity of closed die

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

343  DF  BY USE OF CLOSED-DIE AND COACTING WORK-FORCER (E.G., PUSH-DRAWING) {3}
352  DF  .~ Forcing work into or within closed die; e.g., forging {6}
358.~.~ Tool portion enters cavity of closed die {1}
359  DF  .~.~.~> With telescoping engagement

DEFINITION

Classification: 72/358

Tool portion enters cavity of closed die:

(under subclass 352) Subject matter wherein at some time during an operation of the class type at least a part of the work-engaging surface of the movable member intersects a plane normal to the direction of motion of said member and containing a closed perimeter portion of the die cavity or passageway.