Patents by Inventor John S. Sieger

John S. Sieger 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).

  • Metallic seal for preventing tin leaks in a float glass furnace
    Patent number: 4036626
    Abstract: A tin alloying metal seal is employed at refractory joints about the bottom of a float glass forming chamber for containing molten tin upon which glass can be formed in order to prevent leakage of tin through interstices in the refractory, or between refractory pieces, by forming an alloy with molten tin reaching the metal seal which has a substantially higher melting point than tin.
    Type: Grant
    Filed: May 18, 1976
    Date of Patent: July 19, 1977
    Assignee: PPG Industries, Inc.
    Inventors: John S. Sieger, Joseph A. Gulotta