Patents by Inventor Norman W. Fletcher

Norman W. Fletcher 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 battery plates
    Patent number: 4469145
    Abstract: This invention is a method of making negative battery plates in a continuous process, in which a skeletal grid is cast continuously to have the structure of a number of plate grids side by side and longitudinally integrally connected together in the casting. After casting the skeletal grid is pasted, tissues are applied on either side, and then the grid is cut by slitting and transversely to separate the composite grid into separate pasted battery plates.
    Type: Grant
    Filed: August 17, 1981
    Date of Patent: September 4, 1984
    Assignee: Chloride Group Limited
    Inventors: Norman W. Fletcher, Geoffrey J. May