US PATENT SUBCLASS 493 / 254
.~.~.~ Central fold

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

51  DF  CONTAINER MAKING {2}
186  DF  .~ Pliable container (e.g., bag, envelope, etc.) {9}
243  DF  .~.~ Including folding {8}
254.~.~.~ Central fold

DEFINITION

Classification: 493/254

Central fold:

(under subclass 243) Method or apparatus including forming a crease line parallel to and equidistance from a opposite pair of the marginal portions of the sheet or web workpiece, or of a predominate portion of the workpiece.

(1) Note. Included herein is dividing a workpiece or a predominate portion of a workpiece into two equal areas on opposite sides of a fold line.

SEE OR SEARCH CLASS

53, Package Making,

545+, for apparatus for forming a package by confining the contents within a progressively seamed cover formed from a

continuous web or webs.