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:
Oct. 22, 1991
Filed:
Jul. 16, 1990
Applicant:
Inventor:
Rudolf Leuchtenmuller, Schwertberg, AT;
Assignee:
Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft, Leonding, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D04H / ;
U.S. Cl.
CPC ...
28109 ;
Abstract
It is desired to provide an apparatus for needling a nonwoven web with a brushlike pierceable support and to provide surface patterns independently of a control of the depth of penetration of the needles. To that end the bristles of the covering of bristles of the pierceable support vary in accordance with a predetermined pattern as regards the bristle spacing and/or the extent to which the bristles protrude toward the nonwoven web.