US PATENT SUBCLASS 57 / 340
.~.~.~.~.~.~ With nonperipheral surfaces of discs substantially abutting

Current as of: June, 1999
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57 /   HD   TEXTILES: SPINNING, TWISTING, AND TWINING

1 R  DF  APPARATUS AND PROCESSES {45}
332  DF  .~ False twist device {4}
334  DF  .~.~ Friction type {4}
337  DF  .~.~.~ Having a frictional disc {1}
338  DF  .~.~.~.~ On plural axes {1}
339  DF  .~.~.~.~.~ With discs overlapping {1}
340.~.~.~.~.~.~ With nonperipheral surfaces of discs substantially abutting

DEFINITION

Classification: 57/340

With nonperipheral surface of discs substantially abutting:

(under subclass 339) Subject matter wherein at least a portion of at least one of the two sides of at least one of the rotating discs makes contact with another disc side or is so closely spaced from the other disc side so as to permit a given size yarn strand to be twisted therebetween.