Patents by Inventor John D. Manahan

John D. Manahan 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).

  • Outwardly opening nozzle valve for a fuel injector
    Patent number: 6109540
    Abstract: A fuel injector comprises an injector body which defines a nozzle chamber that is separated from a plurality of outlet orifices by a conical valve seat. An outwardly opening valve member, which is at least partially positioned in the injector body, includes a closing hydraulic surface exposed to fluid pressure outside the injector body. The valve member is movable between a closed position, in which the conical valve seat is closed, and an open position.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: August 29, 2000
    Assignee: Caterpillar Inc.
    Inventors: Dana R. Coldren, John D. Manahan, Adrian Hsieh