Patents by Inventor Jarle Erland Herstad

Jarle Erland Herstad 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).

  • Sidewall and bottom electrode arrangement for electrical smelting reactors and method for feeding such electrodes
    Patent number: 8728385
    Abstract: Metallurgical reactors having cooling capability and electrode feed capability are disclosed. The reactors may include a shell having a sidewall and a bottom, where the shell is adapted to contain a molten material. The reactors may include at least one consumable electrode protruding through an opening of the shell and into the molten material. The reactors may include a current contact clamp configured to conduct operating current to the electrode, where the current clamp is in contact with the electrode, and where the current clamp comprises at least one internal channel, wherein the internal channel is configured to circulate a cooling medium. The reactors may include an electric isolation ring disposed between the electrode and the opening of the shell, wherein the electric isolation ring is configured to sealingly engage the electrode and the opening so as to restrict flow of the molten material out of the shell.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: May 20, 2014
    Assignee: Alcoa Inc.
    Inventors: Olaf-Trygve Vegge, Harald Haaland, Jon Brinch, Jarle Erland Herstad, Constantin Jorgensen
  • SIDEWALL AND BOTTOM ELECTRODE ARRANGEMENT FOR ELECTRICAL SMELTING REACTORS AND METHOD FOR FEEDING SUCH ELECTRODES
    Publication number: 20110156324
    Abstract: Metallurgical reactors having cooling capability and electrode feed capability are disclosed. The reactors may include a shell having a sidewall and a bottom, where the shell is adapted to contain a molten material. The reactors may include at least one consumable electrode protruding through an opening of the shell and into the molten material. The reactors may include a current contact clamp configured to conduct operating current to the electrode, where the current clamp is in contact with the electrode, and where the current clamp comprises at least one internal channel, wherein the internal channel is configured to circulate a cooling medium. The reactors may include an electric isolation ring disposed between the electrode and the opening of the shell, wherein the electric isolation ring is configured to sealingly engage the electrode and the opening so as to restrict flow of the molten material out of the shell.
    Type: Application
    Filed: September 16, 2008
    Publication date: June 30, 2011
    Applicants: Alcoa Inc., Elkem AS
    Inventors: Olaf-Trygve Vegge, Harald Haaland, Jon Brinch, Jarle Erland Herstad, Constantin Jorgensen