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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.:

US 11306422 B1

PDFFull Text
Date of Patent:
Apr. 19, 2022

Filed:

Oct. 16, 2017

Method for making a fiber fleece

Applicant:

Reifenhaeuser Gmbh & Co. KG Maschinenfabrik, Troisdorf, DE;

Inventors:

Jens Mager, Cologne, DE;

Andreas Roesner, Bonn, DE;

Christian Stelter, Ingelheim, DE;

Asmir Vodencarevic, Erlangen, BA;

Thomas Fett, Troisdorf, DE;

Mark Hilgers, Troisdorf, DE;

Christoph Lettowsky, Aachen, DE;

Assignee:

REIFENHAEUSER GMBH & CO KG MASCHINENFABRIK, Troisdorf, DE;

Attorney:

Andrew Wilford

Primary Examiner:

Benjamin A Schiffman

Int. Cl.
CPC ...
D04H 3/02 (2006.01); B29C 48/92 (2019.01); D01D 11/00 (2006.01); D01D 4/02 (2006.01); D01D 5/12 (2006.01); D01D 5/088 (2006.01); B29C 43/24 (2006.01); B29C 69/02 (2006.01); D01D 7/00 (2006.01); D01D 5/098 (2006.01); B29C 48/69 (2019.01); B29C 48/05 (2019.01); B29D 99/00 (2010.01); D04H 3/005 (2012.01); B29K 101/12 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
D04H 3/02 (2013.01); B29C 43/245 (2013.01); B29C 48/05 (2019.02); B29C 48/69 (2019.02); B29C 48/92 (2019.02); B29C 69/02 (2013.01); B29D 99/0078 (2013.01); D01D 4/02 (2013.01); D01D 5/088 (2013.01); D01D 5/0985 (2013.01); D01D 5/12 (2013.01); D01D 7/00 (2013.01); D01D 11/00 (2013.01); D04H 3/005 (2013.01); B29C 2948/92409 (2019.02); B29C 2948/92428 (2019.02); B29C 2948/92438 (2019.02); B29C 2948/92904 (2019.02); B29C 2948/92923 (2019.02); B29C 2948/92933 (2019.02); B29K 2101/12 (2013.01); B29L 2031/726 (2013.01);
Abstract

A system for making a nonwoven nonwoven spun-bond or melt-blown fabric has a spinneret for spinning fibers or filaments, a cooler downstream of the spinneret for cooling the spun fibers or filaments, a stretcher downstream of the cooler for stretching the cooled fibers or filaments, and a conveyor downstream of the stretcher. The stretched and cooled fibers or filaments are deposited as a nonwoven web on the conveyor. Sensors measure input parameters at the spinneret, at the cooler, at the stretcher, and/or at at least one diffuser or at the conveyor. An evaluating unit for determining an output parameter from the measured input parameter with respect to a predetermined reference parameter.

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