US PATENT SUBCLASS 156 / 204
.~.~.~.~ Folding

Current as of: June, 1999
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156 /   HD   ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE

1  DF  METHODS {7}
60  DF  .~ Surface bonding and/or assembly therefor {93}
196  DF  .~.~ With permanent bending or reshaping or surface deformation of self sustaining lamina {11}
199  DF  .~.~.~ Running or continuous length work {4}
204.~.~.~.~ Folding

DEFINITION

Classification: 156/204

(under subclass 199) Processes which involves bending one portion of a web and superimposing the bent portion of the lamina on the other portion of the same lamina, the two portions being in face to face contact to the bendline.

(1) Note. Pleating that is repeated back and forth folding is within the scope of this subclass.

(2) Note. In folding a sharp line of bend is made and the portions are brought into facial contact as distinguished from corrugating in which the product undulates and the adjacent faces are spaced after bending.