US PATENT SUBCLASS 242 / 602.3
.~.~.~ Spiral groove (e.g., convolute divider)

Current as of: June, 1999
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242 /   HD   WINDING, TENSIONING, OR GUIDING

570  DF  COIL HOLDER OR SUPPORT (E.G., SPINDLE, DISPENSER, OR SPOOL) {6}
600  DF  .~ Spool or core {12}
602  DF  .~.~ With convolution or layer separator {2}
602.3.~.~.~ Spiral groove (e.g., convolute divider)

DEFINITION

Classification: 242/602.3

Spiral groove (e.g., convolute divider):

(under subclass 602) Subject matter wherein the spacing means defines a groove whose locus increases radially from a central winding axis, usually for maintaining radial spacing

between convolutions of a web material wound on a spool.

SEE OR SEARCH THIS CLASS, SUBCLASS:

327+, for a convolution separator that may at times be used to maintain spacing between convolutions of an endless web.