US PATENT SUBCLASS 493 / 448
.~.~.~.~.~ And provision to allow one reaction member to move relative to another (e.g., zigzag folding, etc.)

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}
446  DF  .~.~.~ Folding by passive reaction member {2}
447  DF  .~.~.~.~ Including multiple reaction members each presenting one or more shaping edges {1}
448.~.~.~.~.~ And provision to allow one reaction member to move relative to another (e.g., zigzag folding, etc.)

DEFINITION

Classification: 493/448

And provision to allow one reaction member to move relative to another (e.g., zigzag folding, etc.):

(under subclass 447) Method or apparatus including provision to permit one of the work engaging surface of the stationary crease forming means to move with respect to another work engaging surface of a stationary crease forming means during the forming operation.

(1) Note. The movement of the stationary member is done in response to force exerted by the workpiece in being folded, not to effect the folding operation and is accordingly not considered to be conflicting terms.