Patents by Inventor Edward E. Durham

Edward E. Durham 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).

  • Tip-in knock eliminating spark timing control
    Patent number: 4428343
    Abstract: A spark timing control system for an internal combustion engine is responsive to a changing engine operating parameter signalling an engine tip-in event to retard spark timing by an amount sufficient to eliminate tip-in knock and for a predetermined time period ending 175-300 milliseconds after initiation of the tip-in event, so that no perceptible engine performance loss results.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: January 31, 1984
    Assignee: General Motors Corporation
    Inventors: John F. Schweikert, David S. Grossman, Edward E. Durham