Patents by Inventor Ralph N. Camp

Ralph N. Camp 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).

  • Fuel cell-secondary cell combination
    Patent number: 4000003
    Abstract: A hybrid fuel cell secondary battery system suitable for low power sensor plications is provided. The system comprises in combination, a fuel cell, a fully contained fuel and oxidant source for the fuel cell, a DC to DC power processor for boosting the voltage output from the fuel cell, and a nickel-cadmium battery in parallel with the output from the DC to DC processor to sustain peak power drains.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: December 28, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Bernard S. Baker, Ralph N. Camp