Patent · US Expired

Device for producing spun yarn

US6314714A · kind A · utility

6Cited by

6References

6Claims

0Family size

Assignee

W. Schlafhorst AG & Co. · DE

Inventors

Helmut Feuerlohn · Wittlich, DE
Liberto Coll-Tortosa · Sabadell, ES
Francesc Roig Munill · Sabadell, ES
Thomas Weide · Rheydt, DE
Jose Antonio Tornero-Garcia · A Fonsagrada, ES
Oliver Schulze · Donaueschingen, DE

Key dates

Filing date	Jun 19, 2000
Grant date	Nov 13, 2001
Priority date	—
Expiry date	Jun 19, 2020

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H13/045
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A device for producing spun yarn by means of an airflow acting in a twisting manner on the fibers of an untwisted sliver (1) as the sliver is being conducted into and through a spindle assembly (3). The spindle assembly (3) comprises a spindle head portion (5) which conically tapers toward a spindle inlet opening (2) and is rotatable independently of a spindle core portion (7) through which the yarn is withdrawn. The device suppresses any tendency of the yarn strength to decrease at high, increasing numbers of spindle revolutions.

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