Patents by Inventor Bernard C. Bergum

Bernard C. Bergum 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).

  • Lithium cell anti-reversal protection
    Patent number: 4830935
    Abstract: A thionyl chloride electro-chemical cell includes a porous metal member electrically connected to the cathode and interposed between the cathode and the lithium anode.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: May 16, 1989
    Assignee: Rayovac Corporation
    Inventor: Bernard C. Bergum
  • Electrochemical battery employing a latex bonded lead dioxide electrode
    Patent number: 4215189
    Abstract: A lead dioxide electrode structure for an electrochemical battery is formed using a mixture of lead dioxide particles, carbon black particles, and a latex. The materials are mixed to form a compact and homogeneous electrode mixture. The mixture is then coated upon a conductive layer which is binded to a shim. This structure is useful as a cathode in an electrochemical primary battery of the reserve type.
    Type: Grant
    Filed: May 31, 1979
    Date of Patent: July 29, 1980
    Assignee: ESB Inc.
    Inventors: Bernard C. Bergum, Alf M. Bredland, John W. Paulson
  • Battery having porous inherently sealable separator
    Patent number: 4070528
    Abstract: An improved battery having an electrolyte permeable porous inherently sealable separator and intercell connector both extending beyond the periphery of the cell electrodes. A polymeric film material separator seals the intercell connector. The separators may extend beyond the intercell connectors and are sealed to adjacent separators.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: January 24, 1978
    Assignee: ESB Incorporated
    Inventors: Bernard C. Bergum, Walter Lee Fong