Patents Represented by Attorney R. H. Dougherty

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  • Method for direct reduction of metal oxide to a hot metallized product in solid form
    Patent number: 4251267
    Abstract: A method for the continuous direct reduction of metal oxides, ores, etc. to a hot metallized product in solid form. A unique gas seal is employed to prevent the leakage of reduction gas from the bottom of the closed shaft furnace when the product is being discharged which does not affect the discharge temperature of the product.
    Type: Grant
    Filed: August 24, 1979
    Date of Patent: February 17, 1981
    Assignee: Midrex Corporation
    Inventors: Donald Beggs, Robert M. Escott