Patents by Inventor Peter M. Lewis

Peter M. 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).

  • Battery cell with improved pressure relief vent
    Patent number: 8076015
    Abstract: An electrochemical cell with a pressure relief vent formed in a metal plate disposed in at least one of the closed end and the open end of the container. The pressure relief vent has an annular ring that includes a reduced thickness groove, interrupted in at least two places by unthinned sections of the plate. When the vent opens to relieve pressure from within the cell, the area of the plate within the annular ring remains attached to the remainder of the plate by at least one of the unthinned sections. A can with such a pressure relief vent formed in the can bottom is useful as an electrochemical cell container.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: December 13, 2011
    Assignee: Eveready Battery Company, Inc.
    Inventors: Richard L. Bouffard, Peter M. Lewis, Huaxin Li, Paul R. Elsdon, Jr., Richard J. Sosnovich, Jr., Warren Emerson Sweet, Robert E. Ray, Jr., James X. Wu
  • Battery cell with improved pressure relief vent
    Patent number: 7195839
    Abstract: An electrochemical cell with a pressure relief vent formed in a metal plate disposed in at least one of the closed end and the open end of the container. The pressure relief vent has an annular ring that includes a reduced thickness groove, interrupted in at least two places by unthinned sections of the plate. When the vent opens to relieve pressure from within the cell, the area of the plate within the annular ring remains attached to the remainder of the plate by at least one of the unthinned sections. A can with such a pressure relief vent formed in the can bottom is useful as an electrochemical cell container.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: March 27, 2007
    Assignee: Eveready Battery Company, Inc.
    Inventors: Richard L. Bouffard, Peter M. Lewis, Huaxin Li, Paul R. Elsdon, Jr., Richard J. Sosnovich, Jr., Warren Emerson Sweet, Robert E. Ray, Jr., James X. Wu
  • Battery cell with improved pressure relief vent
    Publication number: 20040157115
    Abstract: An electrochemical cell with a pressure relief vent formed in a metal plate disposed in at least one of the closed end and the open end of the container. The pressure relief vent has an annular ring that includes a reduced thickness groove, interrupted in at least two places by unthinned sections of the plate. When the vent opens to relieve pressure from within the cell, the area of the plate within the annular ring remains attached to the remainder of the plate by at least one of the unthinned sections. A can with such a pressure relief vent formed in the can bottom is useful as an electrochemical cell container.
    Type: Application
    Filed: February 11, 2003
    Publication date: August 12, 2004
    Inventors: Richard L. Bouffard, Peter M. Lewis, Huaxin Li, Paul R. Elsdon, Richard J. Sosnovich, Warren Emerson Sweet, Robert E. Ray, James X. Wu