US PATENT SUBCLASS 493 / 427
.~.~.~.~.~.~.~ Fold off-roll-type folder

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  DF  .~.~.~.~.~.~ Radially moving folding blade {1}
427.~.~.~.~.~.~.~ Fold off-roll-type folder {2}
428  DF  .~.~.~.~.~.~.~>.~ And cooperating, registering cylinder {1}
431  DF  .~.~.~.~.~.~.~>.~ Planetary blade

DEFINITION

Classification: 493/427

Fold off-roll-type folder:

(under subclass 426) Method or apparatus wherein the member turning about an axis includes a circular peripheral surface on which a sheet or web workpiece is laid in conforming contact combined with an extension member adapted to rotate therewith and move outwardly from the axis to form a crease line in the workpiece and push at least the engaged portion of the workpiece away from the peripheral surface.