Patents by Inventor John C. Potts

John C. Potts 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 and apparatus for introducing a protective atmosphere into a glass forming chamber
    Patent number: 3976460
    Abstract: The glass forming chamber in which glass is formed into a continuous sheet by floating it on the surface of molten metal is provided with a series of heat exchangers in an enclosed shell above the chamber and protective atmosphere gases are passed through these heat exchangers to preheat the atmosphere gases which are then directed through conduits into headers and distribution manifolds located within the headspace of the operating portion of the chamber in the vicinity of the glass being formed. The chamber is provided with conventional electrical heating elements connected to bus bars located within the shell containing the heat exchangers, and the heat exchangers are located close to the bus bars to extract heat from them during operation and thereby prolong their useful lives.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: August 24, 1976
    Assignee: PPG Industries, Inc.
    Inventors: John W. Kompare, John C. Potts, James L. Simpson