Patents by Inventor Jack L. McElroy

Jack L. McElroy 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).

  • Overburden material for in-container vitrification
    Publication number: 20090023973
    Abstract: A process for melting material to be treated includes placing material to be treated in a container that may include an insulating lining, heating the material to be treated and melting the material to be treated, preferably allowing the melted material to cool to form a vitrified and/or crystalline mass, and disposing of the mass. The mass is either disposed while contained in container or removed from container after cooling and disposed. Heat loss and melt-surface disruptions can be minimized with an engineered overburden material, which covers at least a portion of an exposed surface of the material to be treated.
    Type: Application
    Filed: January 27, 2006
    Publication date: January 22, 2009
    Inventors: Patrick S. Lowery, Leo E. Thompson, Craig Timmerman, Jack L. McElroy, Brett E. Campbell, James E. Hansen
  • Method for calcining radioactive wastes
    Patent number: 4152287
    Abstract: This invention relates to a method for the preparation of radioactive wastes in a low leachability form by calcining the radioactive waste on a fluidized bed of glass frit, removing the calcined waste to melter to form a homogeneous melt of the glass and the calcined waste, and then solidifying the melt to encapsulate the radioactive calcine in a glass matrix.
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: May 1, 1979
    Assignee: Exxon Nuclear Company, Inc.
    Inventors: William J. Bjorklund, Jack L. McElroy, John E. Mendel