The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 2001
Filed:
Jan. 11, 2000
Applicant:
Inventor:
Kurt Lang, Lauterstein, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01H 4/40 ; D01H 4/08 ;
U.S. Cl.
CPC ...
D01H 4/40 ; D01H 4/08 ;
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.