Patents by Inventor Stephen Fedor

Stephen Fedor 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).

  • Gas turbine flame detection system with reflected flame radiation attenuator
    Patent number: 5120975
    Abstract: A directionally-sensitive flame detection apparatus and method for determining the presence of flame in a combustion chamber zone of a gas turbine. A radiation detector is coupled to the monitored combustion zone by a radiation collimator having mechanically-lowered internal reflectance so as to enhance the effective collimation angle. In this manner, a narrowed detector view angle is provided that is substantially independent of radiation wavelength or the material properties of the collimator tube.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: June 9, 1992
    Assignee: General Electric Company
    Inventors: Stephen Fedor, Robert J. Iasillo
  • Combustor gas feed with coordinated proportioning
    Patent number: 4949538
    Abstract: A coordinated valve splitter assembly includes a linear trim primary valve in parallel with an equal-percentage-trim valve to split fuel gas between primary nozzles and a secondary nozzle of a gas turbine combustor. In one embodiment, coordination of the actuation of the two valves is accomplished through rigid connection of the valve shafts. Shaped-cam and electronic actuation of the two valves is also disclosed.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: August 21, 1990
    Assignee: General Electric Company
    Inventors: Robert J. Iasillo, Stephen Fedor