Patents by Inventor Bruce Weldum

Bruce Weldum 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).

  • Electrochemical cell having improved radial seal
    Patent number: 7651814
    Abstract: An electrochemical cell is provided having a cathode can that fits over an anode can to define an anode cavity for retaining active anode material. A cathode assembly is disposed proximal the base of the anode can, and is separated from the anode cavity via a separator. A radial seal is provided at the remote region between the outer periphery of the anode side wall and cathode side wall to prevent the leakage of electrolyte material. An insulator is disposed between the anode and cathode to provide electrical insulation therebetween.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: January 26, 2010
    Assignee: Rovcal, Inc.
    Inventors: Thomas P. Anderson, William C. Bushong, Denis D. Carpenter, Aaron J. Rositch, Marc L. Syvertsen, Bruce Weldum, Thomas M. Kaufman
  • Electrochemical cell having improved radial seal
    Publication number: 20050064283
    Abstract: An electrochemical cell is provided having a cathode can that fits over an anode can to define an anode cavity for retaining active anode material. A cathode assembly is disposed proximal the base of the anode can, and is separated from the anode cavity via a separator. A radial seal is provided at the remote region between the outer periphery of the anode side wall and cathode side wall to prevent the leakage of electrolyte material. An insulator is disposed between the anode and cathode to provide electrical insulation therebetween.
    Type: Application
    Filed: June 30, 2004
    Publication date: March 24, 2005
    Inventors: Thomas Anderson, William Bushong, Denis Carpenter, Aaron Rositch, Marc Syvertsen, Bruce Weldum, Thomas Kaufman
  • Independent seal and vent for an electrochemical cell
    Publication number: 20020127470
    Abstract: An electrochemical cell is presented having a first component that provides a seal to prevent the escape of internal cell ingredients from the battery and into the ambient environment during normal operation of the cell. A second component, independent of the first component, provides a vent and allows built-up pressure to dissipate when the pressure reaches a predetermined maximum threshold.
    Type: Application
    Filed: March 7, 2002
    Publication date: September 12, 2002
    Inventors: Marc L. Syvertsen, Viet H. Vu, Bruce Weldum