Patents by Inventor Ian M. Lewis

Ian 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).

  • Method of making an alkali metal cell
    Patent number: 5197995
    Abstract: The method of making a gas tight seal to the safety reservoir of a sodium sulphur cell so that an overpressure can be applied to force sodium through a hole in the base of the reservoir to wet the active region around the reservoir. The form of the seal may also provide constructional advantages.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: March 30, 1993
    Assignee: Chloride Silent Power Ltd.
    Inventors: Ronald P. Lowton, Ian M. Lewis, Alan Sykes, Michael F. Stackpool
  • Alkali metal cell
    Patent number: 5164272
    Abstract: Alkali metal cell having a gas tight seat to the safety reservoir of the cell so that an overpressure can be applied to force sodium through a hole in the base of the region around the reservoir.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: November 17, 1992
    Assignee: Chloride Silent Power Limited
    Inventors: Ronald P. Lowton, Ian M. Lewis, Alan Sykes, Michael F. Stackpool