Patent · US Expired

Open-end spinning machine having spinning units with removal opening for impurities

US4038812A · kind A · utility

21Cited by

7References

27Claims

0Family size

Assignees

Fritz Stahlecker · DE
Hans Stahlecker · DE

Inventor

Fritz Stahlecker · Geislingen an der Steige, DE

Key dates

Filing date	Dec 2, 1975
Grant date	Aug 2, 1977
Priority date	—
Expiry date	Dec 2, 1995

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H4/36
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

In order to clean the fibrous material supplied to the spinning rotors of open-end spinning units, removal openings for impurities are arranged in the area of the opener roller. These removal openings lead to collection chambers for the impurities. In order to permit these impurities to be removed from these collection chambers without any additional constructional effort for transport means having to be provided for each spinning unit and without this removal being able to have an unfavorable effect on the spinning process, this removal of impurities is handled by a travelling maintenance unit which removes the impurities from the collection chambers of the individual spinning units from time to time.

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