Patents by Inventor Bert K. Krushinski

Bert K. Krushinski 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
  • Heating vessel lid construction for a glass melting furnace
    Patent number: 4704155
    Abstract: A lid construction for a heating vessel. Discrete insulating members are supported by water cooled pipes above the vessel. The cooling pipes fit into grooves along the vertical side walls of the insulating members. Each member has a support independent from the supports for the other members so that an individual member can be removed within having to remove additional members.
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: November 3, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Joseph M. Matesa, Bert K. Krushinski, Arthur C. Knickerbocker