Patents by Inventor Martin William Earl

Martin William Earl 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).

  • Low pressure nickel hydrogen cell
    Patent number: 3959018
    Abstract: A new sealed rechargeable electric fuel cell of the type using a metal oxide, metal hydroxide or oxygen as the positive electrode reactant and hydrogen as the negative electrode reactant. The cell uses a hexagonal nickel - rare earth metal hydride compound for storage of hydrogen gas which causes the cell to be maintained at a low gas pressure during charging and discharging.
    Type: Grant
    Filed: September 16, 1974
    Date of Patent: May 25, 1976
    Assignee: Communications Satellite Corporation
    Inventors: James D. Dunlop, Martin William Earl, Gerrit Van Ommering