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:
Mar. 01, 2022
Filed:
Jan. 17, 2018
Voith Patent Gmbh, Heidenheim, DE;
Martin Kemper, Weingarten, DE;
Heiko Held, Heidenheim, DE;
Cordts Monteiro Wagner, Heidenheim, DE;
Thomas Martin, Langenau, DE;
Voith Patent GmbH, Heidenheim, DE;
Abstract
A device and a method for the production of a fiber mat is suitable in particular for use in the production of packaging board or fibrous construction elements, from a fibrous source material. The method includes providing the fibrous source material, low-water processing of the fibrous source material in an airflow into raw material including individual fibers and/or fiber bundles, forming of the individual fibers and/or fiber bundles in the airflow by a dry forming method into a fiber mat in such a way that a spatial or three-dimensional structure is formed by the fiber mat and consolidation of the formed fiber mat. The specific volume of the fiber mat is greater than 1.6 cm/g, in particular greater than 2 cm/g, preferably greater than 3 cm/g, and the fiber mat thickness ≥1 mm, in particular ≥1.5 mm, preferably ≥2 mm.