Patent · US Active

False twist device for an open-end spinning device

US9580841B2 · kind B2 · utility

1Cited by

16References

15Claims

0Family size

Assignee

Maschinenfabrik Rieter AG · CH

Inventors

Gerd Stahlecker · Eislingen/Fils, DE
Siegfried Krohmer · Neuffen, DE
Gunter Baur · Glückstadt, DE
Michael Basting · Markdorf, DE

Key dates

Filing date	May 21, 2015
Grant date	Feb 28, 2017
Priority date	—
Expiry date	Aug 6, 2035

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H7/90
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A false twist device for an open-end spinning device to introduce a false twist in a yarn has a largely tubular carcass and several false twist edges arranged behind one another in the yarn draw-off direction and inclined by an angle in the carcass with regard to the yarn draw-off direction. The false twist edges protrude in such a way into the interior of the tubular carcass that the yarn experiences a deflection on each one of the false twist edges. The several false twist edges are arranged offset in such a way in the carcass in circumferential direction that the yarn simultaneously experiences a spatial deflection compared to its regular yarn draw-off direction through the successive deflections on the several false twist edges.

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