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:
May. 25, 2004
Filed:
Apr. 16, 2002
Luc Marie Hubert Andre Nicolai, Heinsch, BE;
Gilles Petitjean, Arlon, BE;
Jos Marnach, Luxembourg, LU;
DuPont Teijin Films U.S., Wilmington, DE (US);
Abstract
A segmented vacuum roll comprising an inner assembly on which a plurality of cylindrical sleeve tubes ( ) having apertures over their circumference are rotatably and coaxially mounted side by side, each of said sleeve tubes being individually rotatable and one or several first chambers ( ) formed in said inner assembly and partly defined by a first portion of circumference of said sleeve tubes, said inner assembly comprising linking channels ( ) for linking a vacuum source to said chambers so that said first portion of circumference of said sleeve tubes may be submitted to vacuum. Said inner assembly comprises an inner tube ( ), at least one outer tube ( ) surrounding said inner tube and a plurality of longitudinal walls extending between said inner tube and said outer tube so as to form longitudinal channels ( ).