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. 03, 1991
Filed:
Jun. 28, 1989
Applicant:
Inventors:
Kurt Mente, Hanover, DE;
Gerhard Knitsch, Wedemark, DE;
Assignees:
J. H. Benecke GmbH, Hanover, DE;
Corovin GmbH, Peine, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H / ;
U.S. Cl.
CPC ...
264555 ; 264103 ; 2642108 ; 26421114 ; 19299 ;
Abstract
In the production of irregular non-woven material sheets of synthetic filaments, the warp from spinnerets is drawn off by means of a draw-off device and then deposited on a substrate. To avoid tangling of the individual filaments, they are guided along a nozzle wall formed by slot nozzles stacked on top of each other and forming a draw-off device. The slot nozzles as well as the air compressor are operated polytropically. The deposit of the warp on the substrate is accomplished by a flip-flop cross winding.