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:
Nov. 22, 2022
Filed:
Apr. 22, 2021
Andritz Asselin-thibeau, Elbeuf, FR;
Frédéric Demange, Montville, FR;
Eric Potdevin, Barneville-sur-Seine, FR;
ANDRITZ ASSELIN-THIBEAU, Elbeuf, FR;
Abstract
A needling device to consolidate a fleece. The device including at least one needle plate with an array of needles; at least one column with its longitudinal axis rigidly connected to the at least one needle plate; drive systems; a sealed housing; and at least one guide pot. The drive systems are configured to impart to the at least one column a to and fro motion so that the needles follow an elliptical path to pass through, in one direction then the other, the fleece that passes in front of it in the machine drive direction to consolidate it. The sealed housing containing part of the column and drive systems and wherein the at least one guide pot is fitted in an opening in the sealed housing and oscillates in relation to an axis of oscillation perpendicular to the longitudinal axis and the machine drive direction.