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. 15, 2022
Filed:
Apr. 22, 2021
Andritz Asselin-thibeau, Elbeuf, FR;
Frédéric Demange, Montville, FR;
Eric Potdevin, Barneville-sur-Seine, FR;
Jean-Christophe Laune, La Londe, FR;
ANDRITZ ASSELIN-THIBEAU, Elbeuf, FR;
Abstract
A needling machine to consolidate a fleece. The machine includes one or more needle plates having an array of needles; one or more columns coupled to the needle plates; and driving means configured to impart an elliptical to and fro motion to each needle plate so that the needles pass first in one direction, then the other, over the fleece passing before it in the machine. The machine further comprising a sealed housing enclosing part of each column and driving means; and one or more guide pots within the sealed housing. Each driving means including a longitudinal driving means imparting to each column a straight to and fro motion. Each needle plate oscillates in relation to each respective column. The driving means further comprise transverse driving means imparting to a point on each needle plate a to and fro motion essentially parallel to the machine direction.