US PATENT SUBCLASS 242 / 483.5
.~.~.~.~.~ Reversely threaded (i.e., cam having opposite threads)

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}
482.4  DF  .~.~ Guide driven by cam and follower {3}
482.8  DF  .~.~.~ Rotary cam and linearly shifted follower {2}
482.9  DF  .~.~.~.~ Threaded cam {4}
483.5.~.~.~.~.~ Reversely threaded (i.e., cam having opposite threads) {1}
483.6  DF  .~.~.~.~.~.~> Having irregularly threaded portion (e.g., forming tapered package)

DEFINITION

Classification: 242/483.5

Reversely threaded (i.e., cam having opposite threads):

(under subclass 482.9) Subject matter in which the rotary member has an additional groove whose pitch is opposite to that of the first mentioned groove and that is engaged by the follower to move the guide along a portion of its travel.