US PATENT SUBCLASS 28 / 270
.~.~.~.~.~.~.~ Including traversing

Current as of: June, 1999
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28 /   HD   TEXTILES: MANUFACTURING

217  DF  THREAD FINISHING {4}
219  DF  .~ Surface modification of running length {5}
247  DF  .~.~ Texturing, e.g., crimping {10}
262  DF  .~.~.~ Axial compression {1}
263  DF  .~.~.~.~ Stuffer box {3}
268  DF  .~.~.~.~.~ Thread feeding feature {1}
269  DF  .~.~.~.~.~.~ Nip roll mount or construction, e.g., wear plate {1}
270.~.~.~.~.~.~.~ Including traversing

DEFINITION

Classification: 28/270

(under subclass 269) Method or apparatus involving the particular structure of the ancillary means for directing or guiding the thread in a sinusoidal or zigzag path, such that the point at which the thread contacts the rotary elements is constantly shifted back and forth across the width of said rotary elements prior to the entry thereof into the confining chamber.

SEE OR SEARCH CLASS

242, Winding, Tensioning, or Guiding,

472.2, and 476.7+ for a traverse mechanism in a helical winding machine and subclasses 397.2+ for a traverse mechanism in a reeling device.