US PATENT SUBCLASS 57 / 409
.~.~.~.~ Plural or variable feed

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

1 R  DF  APPARATUS AND PROCESSES {45}
400  DF  .~ Open end spinning {4}
404  DF  .~.~ Rotating chamber type {4}
408  DF  .~.~.~ With fiber separating and/or feeding {5}
409.~.~.~.~ Plural or variable feed

DEFINITION

Classification: 57/409

Plural or variable feed:

(under subclass 408) Subject matter wherein the supply of discrete fibers is fed to a single twisting zone from more than one source, or the supply of discrete fibers is fed to a twisting zone at a variable or pulsating rate.

SEE OR SEARCH THIS CLASS, SUBCLASS:

90+, for feeding or irregular feeding of strand material in spinning or twisting operation.