US PATENT SUBCLASS 493 / 407
.~.~ With crushing or crumpling

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}
407.~.~ With crushing or crumpling

DEFINITION

Classification: 493/407

With crushing or crumpling:

(under subclass 405) Method or apparatus comprising bendingly

stressing a sheet or web workpiece beyond its elastic limit to form a permanent crease and further stressing a sheet or web workpiece beyond its elastic limit but not along any predetermined line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

185, for crushing or crumpling of sheet or web material in the formation of a rigid container.

464, for crushing or crumpling in forming a product from a sheet or web, generally.