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:
Aug. 15, 2000
Filed:
Feb. 18, 1999
Applicant:
Inventors:
Assignee:
Barmag AG, Remscheid, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01D / ; D01D / ; D02G / ;
U.S. Cl.
CPC ...
264103 ; 2642108 ; 26421114 ; 264237 ; 425 722 ; 4253782 ; 425404 ; 425464 ;
Abstract
A method and an apparatus for spinning a multifilament yarn of a thermoplastic material, wherein the thermoplastic material is extruded through a spinneret to form a downwardly advancing filament bundle. The filaments then advance through a cooling device with two cooling zones. In the first cooling zone, an air stream is directed substantially transverse to the direction of the advancing filaments, and in the second cooling zone, cooling occurs by a cooling stream composed of a mixture of air and liquid, with the cooling stream flowing oppositely to the direction of the advancing filaments. The advancing filaments are gathered to form a multifilament yarn, which is then wound into a package.