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. 12, 2009
Filed:
Nov. 26, 2004
Frédéric Noelle, Saint Nazaire les Eymes, FR;
Rolf Helmut Joest, Duisburg-Reinhausen, DE;
Peter Anderegg, Winterthur, CH;
Frédéric Noelle, Saint Nazaire les Eymes, FR;
Rolf Helmut Joest, Duisburg-Reinhausen, DE;
Peter Anderegg, Winterthur, CH;
Rieter Automatik GmbH, Grossostheim, DE;
Abstract
A machine for producing a nonwoven feeds continuous filaments onto two surfaces that form a convergent passage. At least one of the surfaces is moving to drive the continuous filaments through the passage to form the nonwoven web. The continuous filaments have filament portions that are respectively received on the two surfaces to form spaced lateral web parts joined by a central web part formed by the continuous filament portions bridging the convergent passage. A vacuum is applied through the surfaces to assist placement of the filament portions and to direct the web as it emerges from the passage onto a horizontal take-up conveyor.