Patents by Inventor Richard Walter Lewis

Richard Walter Lewis 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).

  • Plastic cased primary cell sheathed in a split metal case
    Patent number: 3945850
    Abstract: A plastic cased alkaline cell which may be of indeterminate or noncircular or circular shape, includes opposed plastic casing members sheathed in a split metal case, anode and depolarizing cathode materials in the respective casings with suitable separators and electrolyte, metallic spacers electrically connecting the respective anode and cathode materials with the conductive terminal portions, and an insulating seal of nonconductive plastic forming part of a peripheral flange junction between the two casing members.
    Type: Grant
    Filed: April 24, 1975
    Date of Patent: March 23, 1976
    Assignee: Timex Corporation
    Inventor: Richard Walter Lewis