Patents by Inventor Roger Wiedenmann

Roger Wiedenmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wire section, belt guidance device, and process for forming fibrous material web in wire section
    Patent number: 6342126
    Abstract: Wire section, guidance device, and process of forming a web in a machine for producing a fibrous material web. The device include two revolving endless wire belts, a twin wire zone formed between the two revolving endless wire belts, and a revolving flexible support belt located in a vicinity of the twin wire zone and positioned to support at least one of the two wire belts in a support region. The flexible support belt is generally guided along an at least essentially circular cylindrical path, and the support region includes a support path having an average curvature radius that is greater than a curvature radius of the essentially circular path. The process includes supporting at least one of the two endless wire belts with the flexible support belt in a support region, rotating the flexible support belt along a generally circular path, and deflecting the support belt from the generally circular path in the support region, whereby the support belt in the support regions travels along a support path.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: January 29, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Joachim Grabscheid, Volker Schmidt-Rohr, Dieter Egelhof, Johann Moser, Hans Dahl, Roger Wiedenmann