Patents by Inventor Thomas E. Corvin

Thomas E. Corvin 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).

  • Alkali metal hydroxide evaporator system
    Patent number: 6669837
    Abstract: A process for reducing the corrosion of nickel metal in an alkali metal hydroxide evaporator equipment which comprises the step of impressing a total protection potential directly upon the nickel metal material in alkali metal hydroxide evaporator that is in contact with an aqueous alkali metal hydroxide solution during evaporation of that solution; said total potential being sufficient to reduce the amount of corrosion of the nickel metal to an oxide that may dissolve in the alkali metal hydroxide solution.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: December 30, 2003
    Assignee: Sunbelt Chlor Alkali Partnership
    Inventors: Jonathan B. Diminnie, Sanders H. Moore, James F. Pickering, Thomas E. Corvin
  • In situ reference electrode for diaphragm cells
    Patent number: 4163698
    Abstract: A method and apparatus for measuring the overvoltage of a gas producing electrode of a chlor-alkali diaphragm cell is disclosed. The method includes positioning an exposed metal tip of a reference electrode from about 0.2 to about 1.0 mm away from the gas producing electrode within a stream of gas produced by the gas producing electrode. The apparatus includes the reference electrode so positioned. Platinized platinum wire and a RuO.sub.2 --TiO.sub.2 coated Ti wire are preferred as the reference electrodes for cathode and anode, respectively.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: August 7, 1979
    Assignee: Olin Corporation
    Inventors: Han C. Kuo, George W. Geren, Thomas E. Corvin, Byung K. Ahn