Patent · US Expired

Yarn withdrawal nozzle for an open-end rotor spinning apparatus

US6286295A · kind A · utility

2Cited by

7References

34Claims

0Family size

Assignees

Fritz Stahlecker · DE
Hans Stahlecker · DE

Inventor

Kurt Lang · Penzberg, DE

Key dates

Filing date	Jan 11, 2000
Grant date	Sep 11, 2001
Priority date	—
Expiry date	Jan 11, 2020

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H4/40
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A yarn withdrawal nozzle for an open-end rotor spinning apparatus comprises a short, funnel-shaped yarn deflecting surface, which begins at a plane front surface and graduates into a yarn withdrawal channel. The radius of curvature of the yarn deflecting surface measures a maximum of 3 mm. The front surface is formed as a tangential surface to the yarn deflecting surface, The small radius of curvature facilitates in particular the spinning of polyester yarns at a high rotor speed.

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