US PATENT SUBCLASS 492 / 31
.~.~ Plural direction alignnment of sets

Current as of: June, 1999
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492 /   HD   ROLL OR ROLLER

28  DF  WITH SPECIFIC ROLLER EXTERIOR SURFACE STRUCTURE {2}
30  DF  .~ Surface projections, indentations, or slits {5}
31.~.~ Plural direction alignnment of sets {1}
32  DF  .~.~.~> Outer screenlike layer over skeleton or perforate core; e.g., Dandy roll

DEFINITION

Classification: 492/31

Plural direction alignment of sets:

(under subclass 30) Roll whose surface has at least two sets of recesses or projections of substantially equal value with the dominant alignment of the sets being angularly related to each other to form a regular pattern on the surface of the roll similar to a checkerboard or the like.