Open-end spinning device

Details Open-end spinning device Open-end spinning device

2005-07-26

2005-07-26

Calvert, John J. (Department: 3765)

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

C057S416000, C057S417000

Reexamination Certificate

active

06920746

ABSTRACT:
An open-end spinning device has a spinning rotor (2) with a rotor groove (25) at its greatest inside diameter in which fibers are collected. A yarn shank (27) extending from a yarn withdrawal nozzle to the rotor groove (25) is curved in the vicinity of the rotor groove (25) counter to the direction of rotor rotation during the spinning process forming a lagging tie-up zone whereat yarn formation takes place. A rotor insert (18) is rotatably supported within the spinning rotor coaxially to the rotor axis. The rotor insert (18) can be caused to rotate in a contactless manner by the rotation of the spinning rotor. The rotor insert (18) comprises a yarn guide conduit (20) that receives the yarn shank (27) to effect a retardation of the rotor insert (18) during normal spinning operation, which significantly improves the stability of the spinning process over known open-end spinning devices.

REFERENCES:
patent: 3958403 (1976-05-01), Wehling
patent: 5540044 (1996-07-01), Raasch
patent: 1 917 864 (1969-12-01), None
patent: 2 126 841 (1971-05-01), None
patent: 24 21 415 (1975-11-01), None
patent: OS 25 52 955 (1976-08-01), None
patent: 39 42 454 (1991-06-01), None
patent: 44 11 342 (1995-10-01), None
patent: 195 28 727 (1996-02-01), None
patent: 199 63 087 (2001-06-01), None
German Search Report.

Affiliated with

Also associated with

Rating

Open-end spinning device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Open-end spinning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Open-end spinning device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3377671