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:
May. 11, 1999
Filed:
Oct. 21, 1997
Applicant:
Inventors:
Peter Berger, Cornelius, NC (US);
Egon Gathmann, Remscheid, DE;
Wolfgang Imping, Remscheid, DE;
Klaus Schafer, Remscheid, DE;
Rahim Gross, Hechingen, DE;
Georg Stausberg, Remscheid, DE;
Assignee:
Barmag AG, Remscheid, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01D / ;
U.S. Cl.
CPC ...
264103 ; 2642108 ; 264211 ; 26421112 ; 425145 ; 425204 ; 425206 ; 4253782 ; 4253822 ; 425464 ;
Abstract
An apparatus and method for melt spinning polymeric yarns, wherein a main melt flow is generated by an extruder and supplied to a spin head. The spin head is enclosed in a heated spinning beam and comprises a mixer, a distributor pump and a plurality of spinnerets. A feed device generates a secondary flow which is supplied to the main melt flow for the purpose of additive admixture. The secondary flow and the main melt flow are combined inside the spinning beam.