Patents by Inventor David B. O'Neill

David B. O'Neill 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).

  • High-set separated overfire air system for pulverized coal fired boilers
    Publication number: 20040221777
    Abstract: A furnace (10) includes a series of lower compartments (18) extending in a vertical arrangement, with at least one of the lower compartments (18) having one or more fuel nozzles (20) which tangentially fires fuel into the combustion chamber at an offset from a diagonal (DD) passing through opposed corners of the combustion chamber. At least one of the lower compartments (18) has one or more air nozzles (22) which tangentially introduces air into the combustion chamber along an offset direction which is offset from the diagonal (DD) to the same side as the fuel firing offset direction. The tangentially fired air and the offset fired fuel create a swirling fireball (RB) in the combustion chamber.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 11, 2004
    Applicant: ALSTOM (Switzerland) Ltd
    Inventors: Douglas J. Hart, Robert D. Lewis, Charles Q. Maney, Michael S. McCartney, David B. O'Neill, Galen H. Richards