Patents by Inventor Geoffrey A. Rotheram

Geoffrey A. Rotheram 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).

  • Air-assisted fuel injection system for ignition quality determination
    Patent number: 5906190
    Abstract: An ignition quality tester includes an unit for repeatedly injecting a precise quantity of fuel under controlled conditions into a combustion chamber where monitored combustion can be carried out. The tester can be used in an in-line feedback arrangement to permit the continual adjustment of a refining process to maintain the cetane number at a desired value.
    Type: Grant
    Filed: November 28, 1997
    Date of Patent: May 25, 1999
    Assignee: Advance Engine Technology
    Inventors: Norman J. Hole, Geoffrey A. Rotheram, Gary D. Webster