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. 23, 1994
Filed:
Jun. 07, 1993
Applicant:
Inventors:
Gunter Koschinek, Dietzenbach, DE;
Dietmar Wandel, Hanau, DE;
Assignee:
Zimmer Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; D01D / ;
U.S. Cl.
CPC ...
264103 ; 26421112 ; 264237 ; 425 722 ;
Abstract
A process for producing spin-oriented filaments at a draw-off speed of more than 2400 m/min, whereby the filaments extruded from a spinneret are solidified in a cooling shaft solely by the ambient air entrained by the suction effect of the filaments and the cooling shaft having a zone where the walls are air permeable directly beneath the spinneret and has a following zone where the peripheral walls are completely closed.