Patents by Inventor Douglas Devault

Douglas Devault 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).

  • Cyclone furnace for oxygen fired boilers with flue gas recirculation
    Publication number: 20060201405
    Abstract: A cyclone furnace and method uses a cyclone burner having a cyclone barrel with a re-entrant throat connected to a main furnace for passing combustion products including flue gas that is rich in carbon dioxide. Crushed coal and oxygen are supplied the cyclone burner and at least some of the flue gas from the main furnace is recirculated to the cyclone barrel.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 14, 2006
    Inventors: Douglas Devault, Dennis McDonald