Patents by Inventor Dennis C. P. Birt

Dennis C. P. Birt 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).

  • Water activated batteries
    Patent number: 4185143
    Abstract: In the cell of a water activated battery using a metal/organo-halogen couple wherein the anode and cathode are formed as planar members with a porous insulator sandwiched between there are provided channels to allow the electrolyte access throughout the cell. The channels may be cut in the cathode or the cathode may be formed as discrete portions of cathode reactant material deposited on a current collector backing plate.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: January 22, 1980
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Dennis C. P. Birt, Leonard J. Pearce