US PATENT SUBCLASS 493 / 440
.~.~.~.~.~.~ Plural folding actions

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}
436  DF  .~.~.~ Continuous advance past folder {2}
438  DF  .~.~.~.~ Folding by passive reaction member {1}
439  DF  .~.~.~.~.~ Folding indeterminate length work {1}
440.~.~.~.~.~.~ Plural folding actions

DEFINITION

Classification: 493/440

Plural folding actions:

(under subclass 439) Method or apparatus including forming a second crease line by a separate, distinct operation.