Patents by Inventor Francis A. Radecki

Francis A. Radecki 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).

  • Compressed, wedged float glass bottom structure
    Patent number: 5007950
    Abstract: In a float glass chamber, particularly in a region operating at higher than usual temperatures, integrity of the bottom structure is sustained by employing wedge shaped bottom blocks that are maintained in compression by externally applied mechanical forces. The arrangement permits the use of a bi-layer bottom construction with a high alumina upper course and a clay bottom course.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: April 16, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Bert K. Krushinski, Robert A. Lawhon, Francis A. Radecki, Ronald L. Schwenninger
  • Ablation melting with composite lining
    Patent number: 4676819
    Abstract: In a method and apparatus for liquefying material such as glass batch, primary thermal protection for the vessel is provided by a lining of the batch material, with secondary protection being provided by a partial refractory lining on the interior of the vessel in regions where the primary protection is irregular.
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: June 30, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Francis A. Radecki, Gary N. Hughes, Henry C. Goode