Patents by Inventor Robert J. Charest

Robert J. Charest 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).

  • Rejuvenation of nickel-cadmium aircraft battery electrolyte
    Patent number: 4628011
    Abstract: The invention disclosed is a process and apparatus for reducing the concentration of dissolved contaminant in a contaminated liquid, with specific application to the regeneration of contaminated electrolyte in an electrolytic cell, wherein the electrolyte is removed from the cell under vacuum and mixed with a washing liquid e.g. water and clean electrolyte. The mixed electrolyte is returned to the cell and the process repeated until the contaminant concentration in the washing liquid and electrolyte are substantially the same.
    Type: Grant
    Filed: January 19, 1983
    Date of Patent: December 9, 1986
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence
    Inventors: Kieva Feldman, Robert J. Charest, Gaston Verville, Joseph L. Lackner