Patents Represented by Attorney J. Rodgers Lunsford, Jr.

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  • Zirconium silicate grinding method and medium
    Patent number: 5544817
    Abstract: A method for milling a powder in a high energy mill which includes steps of forming a milling slurry including a naturally occurring zirconium silicate sand grinding medium having a density in the range of from about 4 g/cc absolute to about 6 g/cc absolute. Also provided is a grinding medium including naturally occurring zirconium silicate sand characterized by a density in the range of from about 4 g/cc absolute to about 6 g/cc absolute.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: August 13, 1996
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Thomas I. Brownbridge, Phillip M. Story
  • Magazine distribution rack
    Patent number: D371471
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: July 9, 1996
    Assignee: Network Publications Incorporated
    Inventors: Marvin L. Sloan, Barry V. Cohen