US PATENT SUBCLASS 493 / 408
.~.~ Overfolding

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}
408.~.~ Overfolding

DEFINITION

Classification: 493/408

Overfolding:

(under subclass 405) Method or apparatus comprising stressing the workpiece along the desired crease line further than desired so that upon release of the stress the workpiece will return by internal stress (or memory) to the desired position.