Patents by Inventor Rodney S. McKenzie

Rodney S. McKenzie 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).

  • Ionically conductive clay additive for use in electrochemical cells
    Patent number: 7563537
    Abstract: The present disclosure relates to alkaline electrochemical cells, such as metal-air cells, which comprise a gelled anode which may or may not include mercury, comprising an ionically conductive clay additive. The ionically conductive clay additive is modified to include halogen atoms to increase the negative charge density of the additive and improve its performance in the electrochemical cell.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: July 21, 2009
    Assignee: Rovcal, Inc.
    Inventors: Paul Pratt, Stephanie R. Curtis, Rodney S. McKenzie
  • Button cell battery pack with air access channel
    Patent number: 6938775
    Abstract: A battery pack suitable for use with button cell batteries. The battery pack includes a flexible card and a cover rotatably fixed relative to said flexible card. A backing is interposed between the card and said cover, and fixed relative to said card. The backing and cover define an enclosed space interposed between the cover and the backing for receiving batteries. Batteries disposed in the space are enclosed by the cover and backing. An air access channel formed in the backing diffuses air to the batteries.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: September 6, 2005
    Assignee: Rovcal, Inc.
    Inventors: Robert C. Gaffney, Rodney S. McKenzie, Marc L. Syvertsen, Jeffrey W. Schmoeger, Michael J. Johnstone, Robert G. Reidl, Jeffrey A. Poirier, Robert G. LaMasney, Ross J. Mack
  • Button cell battery pack with air access channel
    Publication number: 20040011698
    Abstract: A battery pack suitable for use with button cell batteries. The battery pack includes a flexible card and a cover rotatably fixed relative to said flexible card. A backing is interposed between the card and said cover, and fixed relative to said card. The backing and cover define an enclosed space interposed between the cover and the backing for receiving batteries. Batteries disposed in the space are enclosed by the cover and backing. An air access channel formed in the backing diffuses air to the batteries.
    Type: Application
    Filed: July 8, 2003
    Publication date: January 22, 2004
    Inventors: Robert C. Gaffney, Rodney S. McKenzie, Marc L. Syvertsen, Jeffrey W. Schmoeger, Michael J. Johnstone, Robert G. Riedl, Jeffrey A. Poirier, Robert G. LaMasney, Ross J. Mack