Patent · US Expired

Apparatus for false-twisting synthetic filament yarns

US4009563A · kind A · utility

1Cited by

7References

11Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hans Lenz
Edgar Muschelknautz · Leverkusen, DE
Heiko Herold · Dormagen, DE
Kurt Bernklau · Dormagen, DE
Lutz Georgias · Dormagen, DE

Key dates

Filing date	Oct 30, 1974
Grant date	Mar 1, 1977
Priority date	—
Expiry date	Oct 30, 1994

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD02G1/04
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

This invention relates to an apparatus for false twisting synthetic filament yarns, which apparatus is in the form of an air rotated nozzle having tangential inlet bores and two central outlet bores. The twisting chamber is set at an angle of 2.degree. to 40.degree. to the draw-off direction of the filament. The special advantage of this apparatus according to the invention is that it ensures smooth movement of the filament outside the twisting chamber.

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