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. 16, 1993
Filed:
Jun. 18, 1991
Klaus Minichshofer, Linz, AT;
Hannes Pum, Alberndorf, AT;
Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft, Leonding, AT;
Abstract
In an apparatus for applying a nonwoven web to a carrier web moving in the same direction, it is to be ensured that the nonwoven web has straight longitudinal edges as it is applied to the carrier web. This is accomplished in permitting the unwound nonwoven web to sag freely in a slack loop between the unwinding station and a feeding conveyor which precedes the edge-trimming device. The velocities of conveyance of the feeding conveyor and of the take-off rolls have a predetermined ratio in dependence on the velocity of the receiving surface on which the carrier web receives the nonwoven web and are controlled in such a manner that the nonwoven web will be subjected to a predetermined tensile stress between the take-off rolls and the carrier web.