Patents by Inventor Christoph Merckens

Christoph Merckens 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).

  • Patent number: 6375799
    Abstract: Process and apparatus for producing a fibrous material web from a fibrous material suspension. The process includes conveying the fibrous material suspension between two endless, continuously revolving porous belts positioned to form a twin wire zone, removing a part of the suspension fluid through the porous belts so that the fibrous material web begins forming between the belts, guiding the two endless belts and the material web being formed therebetween through uniform pressure drainage elements, and removing additional suspension fluid with the uniform pressure drainage elements. The process further includes supplying an additive though at least one of the belts to the forming fibrous material web in a vicinity of the uniform pressure drainage, and one of controlling and regulating the supply of the additive to provide a particular ratio between quality levels of a top side of the forming web and a web underside of the forming web.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: April 23, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Günter Halmschlager, Josef Bachler, Christoph Merckens