Patents Represented by Attorney Wallace C. Bair

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  • Modular furnace and methods of repairing same
    Patent number: 4920899
    Abstract: A refractory furnace (10) is constructed to facilitate repair of worn or damaged refractory portions while the furnace is maintained at near-operating temperature. A sidewall (40) of the refractory furnace is comprised of a plurality of modular sections (85) each of which includes a refractory lining (87). One or more modular sections may be selectively replaced when becoming worn or damaged. Replacement is accomplished by external access and removal of the worn or damaged modular sections.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: May 1, 1990
    Assignee: American Telephone and Telegraph Company
    Inventors: Robert F. Blundy, Charles E. Dunbar