Patents by Inventor Norman P. Huffnagle

Norman P. Huffnagle 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).

  • Aircraft fiber optic control device
    Patent number: 4742678
    Abstract: An aircraft fiber optic control device adapted for connecting to a servovalve and the like. The device providing an optical-thermal-mechanical converter for driving a servovalve powered by the aircrafts hydraulic system.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: May 10, 1988
    Assignee: The Boeing Company
    Inventors: Richard D. Bartholomew, Norman P. Huffnagle
  • Thermal energy proximity detector
    Patent number: 4691105
    Abstract: A proximity sensor comprising a thermal detector responding to the rate of change of a thermal input and connected to circuitry for performing a control function when the detector output becomes zero, which occurs when a target being approached by the detector fills the field of view of the detector.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: September 1, 1987
    Assignee: Honeywell Inc.
    Inventor: Norman P. Huffnagle