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. 07, 2002
Filed:
Sep. 29, 2000
Joachim Grabscheid, Gerstetten, DE;
Karl Josef Böck, Heidenheim, DE;
Ulrich Begemann, Heidenheim, DE;
Thomas Elenz, Steinheim, DE;
Peter Mirsberger, Baienfurt, DE;
Hans Dahl, Ravensburg, DE;
Hannes Vomhoff, Djursholm, SE;
David Beck, Appleton, WI (US);
Voith Sulzer Papiertechnik Patent GmbH, Heidenheim, DE;
Abstract
Apparatus and process for dewatering a material web. The apparatus includes at least one pressure chamber formed by at least four substantially parallel rolls, a device arranged to introduce a pressurized gas into the at least one pressure chamber, and the at least four substantially parallel rolls being displaceable relative to one another to change an effective area of the at least one pressure chamber. The material web is guided through the at least one pressure chamber. The process includes pressurizing at least one pressure chamber with a gas medium, guiding the material web through the pressure chamber, driving water out of the material web using gas pressure within the at least one pressure chamber, and changing an effective area of the pressure chamber so as to adjust a dewatering capacity.