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. 23, 2023
Filed:
Sep. 30, 2019
Detlef Frey, Niederkassel, DE;
Hans-georg Geus, Niederkassel, DE;
Michael Maas, Roesrath, DE;
Martin Neuenhofer, Roesrath, DE;
Michael Nitschke, Koenigswinter, DE;
Christine Noack, Cologne, DE;
Hartmut Kopp, Troisdorf, DE;
Detlef Frey, Niederkassel, DE;
Hans-Georg Geus, Niederkassel, DE;
Michael Maas, Roesrath, DE;
Martin Neuenhofer, Roesrath, DE;
Michael Nitschke, Koenigswinter, DE;
Christine Noack, Cologne, DE;
Hartmut Kopp, Troisdorf, DE;
REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK, Troisdorf, DE;
Abstract
A nonwoven web is made by first depositing fibers as a nonwoven web in a deposition area, then conveying the web away from the deposition area in a web-travel direction, preconsolidating the web in the path, and passing the preconsolidated web between a pair of rollers that compress and final consolidate the preconsolidated web, One of the rollers is separated from the web such that final consolidation of the web at a starting level is stopped and at the same time or immediately beforehand upstream preconsolidation of the web increased. After separating the one roller from the web, another roller is engaged with the web at the consolidation station and then final consolidation is recommenced, whereupon upstream preconsolidation of the web is reduced back to the starting level.