Patents by Inventor J. Dean Latvaitis

J. Dean Latvaitis 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).

  • Method of forming inert anodes
    Patent number: 7323134
    Abstract: A method of making an inert anode (12?) for use in an electrochemical cell first provides a hollow shaped mold (12) where a metal mandrel (17?) having raised male threads (50) at its top diameter (52) is inserted into the mold (12) and a compressible powder (19, 21) added, then the powder is compressed to form recessed female grooves (70) matching the mandrel threads (50) where the mandrel (17?) is engaged and withdrawn along with the compressed powder inert anode after which the mandrel is rotated to unscrew it from the compressed powder and the compressed powder shape is then placed on a tray (27) and heated to sintering temperature.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: January 29, 2008
    Assignee: Alcoa, Inc.
    Inventors: J. Dean Latvaitis, Raymond Miller, Steven A. Czekaj, Patrick W. Holmes
  • Nickel foam pin connections for inert anodes
    Patent number: 7316577
    Abstract: An electrode assembly useful in manufacturing aluminum, contains a hollow inert electrode (12) containing a metal conductor (14) surrounded and held in place by at least one seal (16) and a mass of metal foam (26).
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: January 8, 2008
    Assignee: Alcoa, Inc.
    Inventors: J. Dean Latvaitis, Ronald M. Dunlap, Kenneth Butcher
  • Nickel foam pin connections for inert anodes
    Patent number: 6878246
    Abstract: An electrode assembly useful in manufacturing aluminum, contains a hollow inert electrode (12) containing a metal conductor (14) surrounded and held in place by at least one seal (16) and a mass of metal foam (26).
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: April 12, 2005
    Assignee: Alcoa, Inc.
    Inventors: J. Dean Latvaitis, Ronald M. Dunlap, Kenneth Butcher
  • Nickel foam pin connections for inert anodes
    Publication number: 20040198103
    Abstract: An electrode assembly useful in manufacturing aluminum, contains a hollow inert electrode (12) containing a metal conductor (14) surrounded and held in place by at least one seal (16) and a mass of metal foam (26).
    Type: Application
    Filed: April 2, 2003
    Publication date: October 7, 2004
    Inventors: J. Dean Latvaitis, Ronald M. Dunlap, Kenneth Butcher
  • Mandrel for forming inert anodes
    Publication number: 20040195735
    Abstract: A method of making an inert anode (12′) for use in an electrochemical cell first provides a hollow shaped mold (12) where a metal mandrel (17) having raised male threads (50) at its top diameter (52) is inserted into the mold (12) and a compressible powder (19, 21) added, then the powder is compressed to form recessed female grooves (70) matching the mandrel threads (50) where the mandrel (17′) is engaged and withdrawn along with the compressed powder inert anode after which the mandrel is rotated to unscrew it from the compressed powder and the compressed powder shape is then placed on a tray (27) and heated to sintering temperature.
    Type: Application
    Filed: April 2, 2003
    Publication date: October 7, 2004
    Inventors: J. Dean Latvaitis, Raymond Miller, Steven A. Czekaj, Patrick W. Holmes