Patents by Inventor Keith C. Guthrie

Keith C. Guthrie 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).

  • Throttle default system
    Patent number: 7267101
    Abstract: An electronic throttle control unit includes an air bypass channel having a removable obstruction that opens in response to receiving an electronic throttle control fault signal and thereby allowing the vehicle a limp home condition. The throttle plate defaults to a fully closed position upon engine-off to substantially prevent evaporation and escape of hydrocarbons from the intake manifold to the atmosphere.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: September 11, 2007
    Assignee: Delphi Technologies, Inc.
    Inventors: Robert D. Garrick, Keith C. Guthrie