US PATENT SUBCLASS 57 / 415
.~.~.~.~ With fluid flow controlling or directing

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}
414  DF  .~.~.~ Rotor with fiber accreting portion {3}
415.~.~.~.~ With fluid flow controlling or directing

DEFINITION

Classification: 57/415

With fluid flow controlling or directing:

(under subclass 414) Subject matter wherein the rotor utilizes a current of fluid and includes means for directing or controlling the current of fluid or for providing an additional or supplemental fluid flow within the rotor other than for or in addition to the purpose of merely transporting the discrete fibers within the rotor.

(1) Note. The fluid flow referred to herein is other than the conventional fluid flow which exists in open-end systems as a result of the use of an under pressure to assist in transporting the fibers to the rotating chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

301+, and 304+, for the use of pneumatic systems in clearing twisting devices.