Patents by Inventor Hagen Wilhelm Hutzler

Hagen Wilhelm Hutzler 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).

  • Apparatus for processing fiber suspensions intended for the production of paper or cardboard
    Patent number: 6068772
    Abstract: An apparatus for processing fiber suspensions containing usable fibers and suspended dirt particles to be separated from the usable fibers, the specific weight of the particles differing distinctly from that of the usable fibers, is described. The apparatus comprises a drum-shaped outer housing having (i) and inflow end accommodating a body rotationally symmetric to the housing axis and being provided with a tangential inlet pipe for the fiber suspension to be processed, and (ii) an outflow end being provided with an axial outlet pipe for a lightweight dirt component of the suspension and an outlet pipe for a usable component of the suspension.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: May 30, 2000
    Assignee: Hermann Finckh Maschinenfabrik GmbH & Co.
    Inventors: Erich Czerwoniak, Emil Holz, Hagen Wilhelm Hutzler, Jochen Gustav Pfeffer