Patent · US Expired

Open-end spinning device

US4697411A · kind A · utility

4Cited by

8References

24Claims

0Family size

Assignee

Schubert & Salzer · DE

Inventors

Peter Artzt · Reutlingen, DE
Hans Rottmayr · Reutlingen, DE
Wolfgang Bauer · Germering, DE

Key dates

Filing date	Jun 30, 1986
Grant date	Oct 6, 1987
Priority date	—
Expiry date	Jun 30, 2006

Classification

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

Abstract

The invention concerns and open-end spinning device having two friction rollers driven in the same direction and forming a spinning notch, whereby at least the friction roller rotating towards the spinning notch is made as a suction roller, conveying the fiber material fed onto its casing surface into the spinning notch. According to invention, a collecting groove for the arriving fiber material is provided at a distance from the spinning notch, said groove being constituted by the casing surface of the friction roller rotating towards the spinning notch and by a moving guiding surface. According to the invention the surface speed of the guiding surface in the collecting groove is synchronized with the surface speed of the friction roller.

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