US PATENT SUBCLASS 57 / 344
.~.~ Having a tube, or a twisting head therefor, through which yarn passes, with a yarn gripper

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}
344.~.~ Having a tube, or a twisting head therefor, through which yarn passes, with a yarn gripper {2}
345  DF  .~.~.~> Plural tubes
346  DF  .~.~.~> Including mounting, support, or housing {1}

DEFINITION

Classification: 57/344

Having a tube, or a twisting head therefor, through which yarn passes, with a yarn gripper:

(under subclass 332) Subject matter wherein the yarn strand passes through a longitudinally apertured tubelike device having a means for gripping or holding the strand against rotation at a point on the strand, but not against the movement of the strand in its path of movement through the device.

(1) Note. Twisting head or inserts having a strand gripping or holding means which are generally used for replacing a worn-out end of a twist tube which has a removable head or insert are also in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

341+, for similar twist devices, but without the yarn strand gripping or holding means.