Patents by Inventor David Owenby

David Owenby 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).

  • Time-synchronized TDLAS measurements of pressure and temperature in a gas turbine engine
    Patent number: 8699011
    Abstract: A method of absorption spectroscopy to determine a rapidly variable gas parameter. The method includes transmitting light from a synchronization light source to a synchronization detector. The transmitted light is periodically interrupted by a moving mechanical part between the synchronization light source and synchronization detector. The output from the synchronization detector is used to generate a repeating time signal having variable phase delay. This signal is used to control the timing of laser spectroscopy wavelength scans. Multiple spectroscopic scans may be repeated at multiple selected time signal phase delay and the results averaged for each phase. Apparatus for implementing the above methods are also disclosed.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: April 15, 2014
    Assignee: Zolo Technologies, Inc.
    Inventors: Henrik Hofvander, Bernard P Masterson, Andrew D Sappey, James Howell, David Owenby, Lee Sutherland, Michael J Estes
  • TIME-SYNCHRONIZED TDLAS MEASUREMENTS OF PRESSURE AND TEMPERATURE IN A GAS TURBINE ENGINE
    Publication number: 20130057864
    Abstract: A method of absorption spectroscopy to determine a rapidly variable gas parameter. The method includes transmitting light from a synchronization light source to a synchronization detector. The transmitted light is periodically interrupted by a moving mechanical part between the synchronization light source and synchronization detector. The output from the synchronization detector is used to generate a repeating time signal having variable phase delay. This signal is used to control the timing of laser spectroscopy wavelength scans. Multiple spectroscopic scans may be repeated at multiple selected time signal phase delay and the results averaged for each phase. Apparatus for implementing the above methods are also disclosed.
    Type: Application
    Filed: May 10, 2011
    Publication date: March 7, 2013
    Applicant: ZOLO TECHNOLOGIES, INC.
    Inventors: Henrik Hofvander, Bernard P. Masterson, Andrew D. Sappey, James Howell, David Owenby, Lee Sutherland, Michael J Estes