Patent · US Expired

Yarn withdrawal nozzle

US6035625A · kind A · utility

11Cited by

7References

8Claims

0Family size

Assignee

W. Schlafhorst AG & Co. · DE

Inventors

Bert Schlomer · Heinsberg, DE
Lothar Winzen · Herzogenrath, DE
Jens Geerligs · Korschenbroich, DE

Key dates

Filing date	Sep 3, 1998
Grant date	Mar 14, 2000
Priority date	—
Expiry date	Sep 3, 2018

Classification

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

Abstract

A yarn withdrawal nozzle (20) for an open-end rotor spinning device (1) has a yarn inlet zone (29) tapering in a funnel-like manner into a yarn withdrawal conduit (21), with the yarn inlet zone being formed with both a spiral structure (30) as well as additional notches (34) in the inlet area of the yarn withdrawal conduit (21). As viewed in the yarn withdrawal direction (A), the notches (34) are either arranged following the spiral structure (30) or at least partially in the area of the spiral structure (30).

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