Patents by Inventor Kevin J. Gehris

Kevin J. Gehris 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 systems for determining internal combustion engine cylinder condition
    Patent number: 7246006
    Abstract: A method of evaluating a contribution of a cylinder to an engine includes measuring a first revolutions per minute of the engine during an enabled state; determining a dwell period of the cylinder; applying a direct current voltage signal into a negative terminal of an ignition coil of the engine during the dwell period to disable the cylinder and create a disabled state; and measuring a second revolutions per minute of the engine during the disabled state. A system for evaluating a contribution of a cylinder to an engine includes a first measure module, a determine module, an apply module, and a second measure module. The first measure module measures a first revolutions per minute of the engine during an enabled state. The determine module determines a dwell period of the cylinder. The apply module applies a direct current voltage signal into a negative terminal of an ignition coil of the engine during the dwell period to disable the cylinder and create a disabled state.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: July 17, 2007
    Assignee: Vetronix Corporation
    Inventors: Bernard J. Carr, Nathan Perry, Kevin J. Gehris, Kent E. Antognini