US PATENT SUBCLASS 493 / 434
.~.~.~.~.~ Folding by roller


Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

395  DF  BENDING {6}
405  DF  .~ Folding {13}
416  DF  .~.~ With means to advance work or product {8}
422  DF  .~.~.~ Continuous advance with folder moving with work {2}
424  DF  .~.~.~.~ Rotary folder {2}
434.~.~.~.~.~ Folding by roller {1}
435  DF  .~.~.~.~.~.~> Roller couple


DEFINITION

Classification: 493/434

Folding by roller:

(under subclass 424) Method or apparatus wherein the crease forming surface of the member turning about an axis is circular and extends all the way about that axis at the same distance therefrom and wherein the surface engages the workpiece in a manner of a wheel with no relative movement between the workpiece and the surface of the member.