US PATENT SUBCLASS 57 / 408
.~.~.~ With fiber separating and/or feeding

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.~.~.~ With fiber separating and/or feeding {5}
409  DF  .~.~.~.~> Plural or variable feed
410  DF  .~.~.~.~> Coaxial roll
411  DF  .~.~.~.~> With fluid flow controlling or directing
412  DF  .~.~.~.~> With specific feed device for opening roll
413  DF  .~.~.~.~> With specific rotor feed channel

DEFINITION

Classification: 57/408

With fiber separating and/or feeding:

(under subclass 404) Subject matter combined with a device or means which operates on a supply of fibrous material to disintegrate it into discrete fiber form and/or feeds the discrete fibers to the rotating chamber.

(1) Note. These devices may be referred to as opening rolls, combing rolls, or carding rolls. They also may comprise conventional drafting rolls.

SEE OR SEARCH THIS CLASS, SUBCLASS:

327, for carding devices combined with drafting in spinning machines.

SEE OR SEARCH CLASS

19, Textiles: Fiber Preparation,

80+, 98+, 115+, and 236+ for picking, carding, combing, and drafting fibers.