US PATENT SUBCLASS 493 / 405
.~ Folding

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.~ Folding {13}
406  DF  .~.~> And tautening or smoothing
407  DF  .~.~> With crushing or crumpling
408  DF  .~.~> Overfolding
409  DF  .~.~> Refolding or unfolding {1}
413  DF  .~.~> Folding of indeterminate length work by swinging work guiding means (e.g., zigzag folding, etc.) {1}
416  DF  .~.~> With means to advance work or product {8}
450  DF  .~.~> By direct application of vacuum or fluid
451  DF  .~.~> By plural relatively movable folding edges approaching work from same side (e.g., zigzag folding, etc.)
452  DF  .~.~> Forming gable top
453  DF  .~.~> Including folding end flap
454  DF  .~.~> By rotary member
455  DF  .~.~> By passive reaction member {2}
458  DF  .~.~> Sequential, diverse folds

DEFINITION

Classification: 493/405

Folding:

(under subclass 395) Method or apparatus comprising bendingly stressing a sheet or web workpiece beyond its elastic limit along a line to form a permanent crease.

(1) Note. Folding of cloth is included in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

68, for making a rigid container including folding and

assembling combined with cutting, breaking, tearing, or abrading by a rotary tool.

69+, for making a rigid container including folding combined with cutting, breaking, tearing, or abrading by a rotary tool.

79+, for making a rigid container including folding combined with cutting, breaking, tearing, or abrading by a reciprocatory tool.

151, for making a rigid container including coating with an adhesive and folding. 162+, for making a rigid container including folding.

231+, for making a pliable container including folding combined with cutting, breaking, tearing, or abrading.

243+, for making a pliable container including folding.

353, for folding combined with cutting, breaking, tearing, or abrading by a composite tool.

356+, for folding combined with cutting, breaking, tearing, or abrading, generally.