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:
Dec. 13, 2011
Filed:
Oct. 26, 2007
Paul Douglas Beuther, Neenah, WI (US);
Frank Stephen Hada, Appleton, WI (US);
Jeffrey Dean Holz, Sherwood, WI (US);
Hans Ivarsson, Karlstad, SE;
Ingvar Berndt Erik Klerelid, Karlstad, SE;
Johan Ulf Ragard, Karlstad, SE;
Paul Douglas Beuther, Neenah, WI (US);
Frank Stephen Hada, Appleton, WI (US);
Jeffrey Dean Holz, Sherwood, WI (US);
Hans Ivarsson, Karlstad, SE;
Ingvar Berndt Erik Klerelid, Karlstad, SE;
Johan Ulf Ragard, Karlstad, SE;
Metso Paper Karlstad AB, Karlstad, SE;
Abstract
An apparatus for transferring a wet paper web from a press nip to a drying cylinder () of a papermaking machine, and for structuring the web, comprises an impermeable transfer belt () having a web-contacting surface, the wet paper web passing through the press nip enclosed between a press felt () and the transfer belt, and a permeable structuring fabric () for transfer of the web onto the drying cylinder, the structuring fabric having a structured surface and being arranged in a loop within which a suction transfer device () is disposed, said suction transfer device having a suction zone (). According to the invention the web-contacting surface of the belt has a non-uniform distribution of microscopic-scale depressions, and that the suction zone includes a transfer point () spaced a distance D from the press nip along which the belt runs, the belt being arranged to bring the web into contact with the structuring fabric in the suction zone for a length L, such that suction is exerted on the paper web to transfer the paper web from the belt onto the structuring fabric. at the transfer point.