Patents by Inventor Larry J. Shelestak

Larry J. Shelestak 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 of melting raw materials for glass or the like using solid fuels or fuel-batch mixtures
    Patent number: 4632687
    Abstract: Thermally fusible material such as glass batch is liquefied using a solid carbonaceous fuel such as coal as the major energy source. In another embodiment, solid or liquid fuel is mixed with the batch material being fed to an initial liquefaction stage. Melting may be advanced further in a subsequent stage where the melt may also be re-oxidized.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: December 30, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Gerald E. Kunkle, Henry M. Demarest, Larry J. Shelestak
  • Method of melting flat glass using nitrates to suppress sulfurous emissions
    Patent number: 4270945
    Abstract: Sulfurous emissions from a glass melting furnace are suppressed by including a nitrate oxidizing agent in the raw materials being fed into the furnace.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: June 2, 1981
    Assignee: PPG Industries, Inc.
    Inventors: Alan G. Amrhein, Joseph J. Hammel, Larry J. Shelestak