US PATENT SUBCLASS 493 / 426
.~.~.~.~.~.~ Radially moving folding blade

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}
425  DF  .~.~.~.~.~ Having radial folding blade {2}
426.~.~.~.~.~.~ Radially moving folding blade {1}
427  DF  .~.~.~.~.~.~.~> Fold off-roll-type folder {2}

DEFINITION

Classification: 493/426

Radially moving folding blade:

(under subclass 425) Method or apparatus wherein the extension not only turns about an axis but moves toward or away from that axis to effect the crease forming operation.