Patents by Inventor John D. Zerphey

John D. Zerphey 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).

  • Replaceable lump breaker system for a rotary kiln
    Patent number: 7354266
    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 discharge opening that includes a lump breaker system. The lump breaker system includes multiple insert retainers mounted to the shell and positioned along the inner circumference of the rotary kiln. Each insert retainer includes multiple mounting slots for receiving breaker inserts that can be easily removed and replaced when worn. Each of the breaker inserts can be individually removed from its respective retainer without removing either the retainer or the layer of refractory in the rotary kiln.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: April 8, 2008
    Assignee: Metso Minerals Industries, Inc.
    Inventors: Samuel A. Miller, Neil R. Dock, John D. Zerphey, Glenn M. Hanson, III