US 7,476,294 B2
Press section and permeable belt in a paper machine
Jeffrey Herman, Bala Cynwyd, Pa. (US); Thomas Thoroee Scherb, Sao Paulo (Brazil); Luiz Carlos Silva, Campo Limpo (Brazil); and Hubert Walkenhaus, Kerpen (Germany)
Assigned to Voith Patent GmbH, Heidenheim (Germany)
Filed on Oct. 26, 2004, as Appl. No. 10/972,431.
Prior Publication US 2006/0086473 A1, Apr. 27, 2006
Int. Cl. D21F 3/04 (2006.01); D21F 7/08 (2006.01); D21F 7/12 (2006.01)
U.S. Cl. 162—206  [162/205; 162/207; 162/358.1; 162/358.2; 162/358.3; 162/358.4; 162/900; 162/901] 60 Claims
OG exemplary drawing
 
1. A pressing arrangement comprising:
at least one first fabric;
the at least one first fabric comprising a structured fabric;
at least one second fabric;
the at least one first fabric and the at least one second fabric being permeable;
a paper web disposed between the first and second fabrics;
a pressure producing element being in contact with the at least one first fabric;
a support surface of a supporting structure being in contact with the at least one second fabric; and
a differential pressure being provided between the first fabric and the support surface and acting on the at least one first fabric, the paper web, and the at least one second fabric, whereby the paper web is subjected to mechanical pressure and experiences a predetermined hydraulic pressure so as to cause water to be drained from the paper web;
wherein the pressing arrangement is structured and arranged to allow air to flow in a direction from the at least one first fabric, through the paper web, through the at least one second fabric.