US PATENT SUBCLASS 242 / 279
.~.~.~.~.~ Reversely threaded screw

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

370  DF  REELING DEVICE {11}
223  DF  .~ Fishing rod reel {8}
249  DF  .~.~ With drive mechanism {9}
273  DF  .~.~.~ With level winding {5}
278  DF  .~.~.~.~ Drive mechanism reciprocates guide {1}
279.~.~.~.~.~ Reversely threaded screw {2}
280  DF  .~.~.~.~.~.~> Guide shiftable between wind and unwind positions
281  DF  .~.~.~.~.~.~> Guide has line removal opening

DEFINITION

Classification: 242/279

Reversely threaded screw:

(under subclass 278) Subject matter wherein the drive mechanism linkage includes at least one shaft and right and left hand helical grooves merged together at each end to receive a follower connected to the guide so that rotation of the shaft by the drive mechanism imparts reciprocating motion to the guide.