Patents Represented by Attorney Robert C. Cummings

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  • Electric arc furnace component
    Patent number: 4453253
    Abstract: Wall and roof sections for electric arc furnaces are made of graphite blocks with removably attached fluid cooled panels.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: June 5, 1984
    Assignee: Union Carbide Corporation
    Inventors: Anthony T. Lauria, Louis J. Voisinet
  • Process for improved activated carbon having an aluminum-heavy metal spinel
    Patent number: 4438216
    Abstract: A method of producing an activated carbon having an aluminum-heavy metal spinel features the use of at least twice the stoichiometric amount of aluminum with respect to heavy metal in the preparation.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: March 20, 1984
    Assignee: Union Carbide Corporation
    Inventors: Dennis J. Kampe, Srinivasan Sarangapani
  • Method and article for protecting tapered threaded electrode joints by use of an alignment mechanism
    Patent number: 4435816
    Abstract: Taper thread joints in carbon or graphite electrode columns are protected from thread damage during assembly by use of a consumable centering pin to assure axial alignment of the mating parts, thereby preventing thread damage and resulting thread debris from forming and interfering with the proper fit of the mating parts forming the joint.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: March 6, 1984
    Assignee: Union Carbide Corporation
    Inventors: Herman M. Belz, Harry C. Stieber
  • Porous free standing pyrolytic boron nitride articles
    Patent number: 4402925
    Abstract: A sponge-like free-standing pyrolytic boron article is made by reacting ammonia and gaseous boron halide diluted with an non-oxidizing gas to deposit pyrolitic boron nitride on a porous substrate such as open-pored vitreous carbon under a vacuum and then removing the substrate as by oxidation.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: September 6, 1983
    Assignee: Union Carbide Corporation
    Inventors: Julius S. Shinko, Thomas C. Keyes
  • Method and apparatus for orientation of electrode joint threads
    Patent number: 4349910
    Abstract: The proper assembly of electrode sections is facilitated by placing orientation match-marks on the electrode ends, which marks are lined up at the time of the assembly. Placing of the marks is done with marking gauges and the location is predetermined with reference to the pitch of the socket threads.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: September 14, 1982
    Assignee: Union Carbide Corporation
    Inventor: Herman M. Belz
  • Method of precharging rechargeable metal oxide-hydrogen cells
    Patent number: 4174565
    Abstract: A rechargeable cell having a metal oxide positive electrode and a hydrogen gas negative electrode is manufactured in accordance with the present invention with a predetermined quantity of hydrogen gas by inserting a metallic member, selected from the group consisting of aluminum, zinc and magnesium, within the cell at a location adapted to contact the aqueous alkaline electrolyte and hermetically sealing the cell.
    Type: Grant
    Filed: March 28, 1978
    Date of Patent: November 20, 1979
    Assignee: Union Carbide Corporation
    Inventor: Karl V. Kordesch