Open-end spinning apparatus

Patent 4315398 Issued on February 16, 1982. Estimated Expiration Date:

October 25, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Apparatus for spinning textile fibers
Patent #: 4107909
Issued on: 08/22/1978
Inventor: Fehrer , et al.

Yarn spinning apparatus and process
Patent #: 4130983
Issued on: 12/26/1978
Inventor: Dammann , et al.

Frictional open-end spinning method and apparatus
Patent #: 4168601
Issued on: 09/25/1979
Inventor: Didek , et al.

Spinning process and apparatus
Patent #: 4202163
Issued on: 05/13/1980
Inventor: Turk , et al.

Apparatus for manufacturing a yarn Patent #: 4249368
Issued on: 02/10/1981
Inventor: Fehrer

Inventors

Assignee

Platt Saco Lowell Limited (GB)

Application

No. 06/088262 filed on 10/25/1979

US Classes:

57/401, Friction57/411With fluid flow controlling or directing

Examiners

Primary: Watkins, Donald

Attorney, Agent or Firm

Feldman; Donald H.

International Classes

D01H 4/16 (20060101)
D01H 4/16 (20060101)
D01H 4/18 (20060101)
D01H 4/18 (20060101)
D01H 4/00 (20060101)
D01H 4/00 (20060101)

Foreign Application Priority Data

1978-10-26 GB

Abstract

A friction spinning apparatus comprises an opening roller system for feeding fibres in a feed duct to the throat formed between the adjacent peripheral surfaces of two parallel drums rotating in the same direction. Yarn formed at the throat, by frictional contact between the fed fibres and the surfaces, is withdrawn along the throat. The fibre feed duct is arranged to feed the fibres in an airstream having a direction inclined to the yarn axis and providing a component of fiber movement opposite to the direction of yarn withdrawal. A suction opening in the duct wall facing away from the drums causes an additional airstream across the duct parallel to the yarn axis to turn the fibres from the direction of inclination to a direction more nearly parallel to the yarn axis as they approach the throat. One of the drums is perforated for suction through its surface, the other is imperforate and formed with a resilient surface of a rubber material.