Patents by Inventor Wolf-Diethard Grunberg

Wolf-Diethard Grunberg 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).

  • Method and device for measuring the height of at least one separation layer in the material bed of a density sorting machine
    Patent number: 4365510
    Abstract: A method and apparatus for measuring the height of the density layer in a material bed layered according to densities, such as in a jigging machine operation, utilizes a free-floating measuring body having a transmitter means embedded therein and a probe mechanism for monitoring the relative position of the body in the material bed. The measuring body is made of a material having a density equal to the relative densities of materials forming the separating line between two density levels and is able to move with the materials during the grading process. The probe mechanism is housed in a guide tube which extends in the direction of the density gradient through the material bed.
    Type: Grant
    Filed: November 14, 1980
    Date of Patent: December 28, 1982
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Rainer Imhof, Wolf-Diethard Grunberg, Karl-Heinz Unkelbach