US PATENT SUBCLASS 72 / 355.6
.~.~.~.~.~ Both tools telescoping into 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}
353.2  DF  .~.~ By two or more coacting tools movable relative to closed die; e.g., tool complex {3}
354.6  DF  .~.~.~ One tool telescoping into closed die {2}
355.2  DF  .~.~.~.~ Coaxial opposed tools {2}
355.6.~.~.~.~.~ Both tools telescoping into closed die

DEFINITION

Classification: 72/355.6

Both telescoping into closed die:

(under subclass 355.2) Subject matter wherein the coaxially opposed deforming instrumentality also slidingly enters into another cylindrical portion of a closed die during the shaping operation.