Patent · US Expired

Process and device for piecing on an open-end spinning device

US5191760A · kind A · utility

4Cited by

6References

10Claims

0Family size

Assignee

Schubert & Salzer Maschinenfabrik AG · DE

Inventors

Anthony Ball · Charleston, US
Ulrich Rodiger · Ingolstadt, DE

Key dates

Filing date	Apr 16, 1991
Grant date	Mar 9, 1993
Priority date	—
Expiry date	Apr 16, 2011

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H4/50
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A yarn piecing device and process for an open-end spinning machine wherein opened fiber is fed to a fiber collection surface in a pneumatic stream. The stream of fibers is shifted from the fiber collection surface when a broken or missing yarn is detected and the fiber feed to an opening device is interrupted. After the yarn is back-fed to the collection surface, the fiber feed to the opening device is restarted and the pneumatic stream of fibers is shifted back to the fiber collection surface before the fiber density in the pneumatic stream attains its production strength density.

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