US PATENT SUBCLASS 242 / 479.4
.~.~.~.~ On bobbin having cylindrical and frusto-conical portions


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

470  DF  HELICAL OR RANDOM WINDING OF MATERIAL {17}
476.7  DF  .~ Distributing material along the package {24}
479.2  DF  .~.~ By progressive shifting of constant traverse stroke {2}
479.3  DF  .~.~.~ Long traverse stroke (e.g., bobbin tapered at both ends) {1}
479.4.~.~.~.~ On bobbin having cylindrical and frusto-conical portions


DEFINITION

Classification: 242/479.4

On bobbin having cylindrical and frusto-conical portions:

(under subclass 479.3) Subject matter in which the material-contacting surface of the take-up has a portion that is a portion of a cone and a portion that is a cylinder.