Patents by Inventor David Granger Marriott

David Granger Marriott 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).

  • Apparatus and method for the calibration of thermal paint
    Patent number: 5720554
    Abstract: A method and apparatus for calibrating the temperature/color correspondence of thermal paint. A strip of metal is heated at both ends independently to achieve a predetermined temperature differential measured by thermocouples. Heat flow from the hot end to the cooler end is constrained to the test piece by enclosing it in insulation material. A linear temperature gradient is thus achieved so providing a more accurate and flexible calibrating arrangement.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: February 24, 1998
    Assignee: European Gas Turbines Limited
    Inventors: Michael Kelvin Douglas Smith, David Granger Marriott