Patents by Inventor F. Phillip Stapf

F. Phillip Stapf 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 TO DELIVER SOLID FUEL TO A COMBUSTION ZONE
    Publication number: 20090291403
    Abstract: An apparatus and method for consistently delivering solid fuel to the combustion zone of a furnace is disclosed. The method includes feeding the solid fuel into the material inlet of a rotating rotary air lock valve which may have slanted vanes and moving the fuel from the material inlet of the rotating rotary air lock valve to the material outlet of the rotating rotary air lock valve, and conveying the fuel and gas through a discharge conduit to a fuel feed receiver of a furnace burner having a combustion zone.
    Type: Application
    Filed: May 22, 2009
    Publication date: November 26, 2009
    Inventors: Giovann Conti, F. Phillip Stapf, Patrick F. Oberth