Patents by Inventor Thomas H. Luepke, Jr.

Thomas H. Luepke, Jr. 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).

  • Toothed grate for rotary kiln peripheral discharge openings
    Patent number: 6474985
    Abstract: A rotary kiln for pyroprocessing particulate material includes a cylindrical kiln shell supported for rotation about a longitudinal central axis. The kiln has a plurality of circumferentially spaced peripheral openings provided in the kiln shell near its exit end for discharging pyroprocessed particulate material therethrough. A raised grate disposed over each discharge opening has a generally convex geometric profile that projects into the interior of said kiln shell.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: November 5, 2002
    Assignee: Metso Minerals Industries, Inc.
    Inventors: Samuel A. Miller, Thomas H. Luepke, Jr.