Patents by Inventor Thane Montgomary Drummond

Thane Montgomary Drummond 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).

  • Method and apparatus determining turbine stress
    Patent number: 6070471
    Abstract: A method and apparatus for determining turbine rotor stresses in real time enables increased operation efficiency and more accurate stress determinations. The system calculates rotor bore and surface temperatures based on the time response of the rotor. The rotor surface temperature is measured using a sensor such as a thermocouple, and the measured rotor surface temperature is used to calculate rotor bore temperature and rotor average temperature based on time constants determined as a function of rotor geometry and material. The rotor surface thermal stress and the rotor bore thermal stress can be determined based on the measured and calculated temperatures.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: June 6, 2000
    Assignee: General Electric Co.
    Inventors: Bernd Artur Karl Westphal, Thane Montgomary Drummond