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. 29, 1991
Filed:
Nov. 24, 1989
Applicant:
Inventor:
Michel F Beckers, Verviers, BE;
Assignee:
S.A. des Ateliers Houget Duesberg Bosson, Verviers, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01G / ;
U.S. Cl.
CPC ...
19300 ; 19163 ; 19296 ; 28101 ;
Abstract
Non-woven fabrics are manufactured using a carding machine with outlet comb, a blamire feed or spreader/batt-making machine with cylinders for depositing a web of fibers, and one or more needling devices. The surface weight of the web delivered by the carding machine to the blamire feed is modified by varying the speed of the comb as a function of the changing positions of the cylinders whereby a batt of variable surface weight over its width is obtained so as to counteract the distortions of surface weight distribution produced by the needling devices.