Patents by Inventor Michael D. Lindemayer

Michael D. Lindemayer 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).

  • Coiled electrode assemblies and methods of producing same
    Patent number: 5657522
    Abstract: The present invention relates to coiled electrode assemblies having conductive tabs, methods of attaching the conductive tabs to the coiled electrode, and electrochemical cells employing such assemblies. In the process of the invention, the conductive tab area of an electrode plate coated with active material is pierced with opposing, offset piercing plates having raised surface probes which penetrate the conductive tab area. The resulting area is cleared of active material, and a conductive tab is welded to the thus treated area resulting in an electrode plate having a strong integrated tab assembly.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: August 19, 1997
    Assignee: Duracell Inc.
    Inventors: Ernesto J. Figueira, Michael D. Lindemayer