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:
Jul. 22, 1997
Filed:
Mar. 29, 1994
Applicant:
Inventors:
Assignee:
Lenzing Aktiengesellschaft, , AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F / ;
U.S. Cl.
CPC ...
264187 ; 26421114 ; 26421116 ; 264237 ;
Abstract
The spinneret according to the invention is especially suitable for spinning cellulose solutions and has a die body which is essentially rotationally symmetrical having an inlet in its centre for cooling gas, an inlet for cellulose solutions, an annular deep-drawn spinning insert of precious metal with spinning holes wherein the spinning insert is designed pan-shaped in cross-section, and a baffle plate to deflect the cooling gas stream through the cellulose filaments which are extruded from the spinning holes, so that the cooling gas stream strikes the extruded cellulose filaments essentially at right angles. The spinning holes in the spinning insert are uniformly spaced from one another.