Patent · US Expired

Spinning process and apparatus

US4241574A · kind A · utility

10Cited by

4References

16Claims

0Family size

Assignee

Barmag Barmer Maschinenfabrik Aktiengesellschaft · DE

Inventors

Herbert Turk · Remscheid, DE
Herbert Schiminski · Hückeswagen, DE

Key dates

Filing date	Jan 30, 1979
Grant date	Dec 30, 1980
Priority date	—
Expiry date	Jan 30, 1999

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H4/16
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A process and apparatus for producing a thread from staple fibers by the open-end or round-about spinning methods wherein the individual fibers are transported by an air stream to the thread forming zone in the nip between two air-permeable rollers with suction applied from within the rollers, characterized by the use of a fiber-transporting air stream directed at an angle of impingement with reference to the thread forming zone of less than 45.degree., preferably 10.degree. or even less, with a vector of movement of the air stream being counter to the thread draw-off direction. An improved thread or yarn product is obtained by this process, being more compact and free of loose fibers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.