Patents by Inventor William A. Calliss

William A. Calliss 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).

  • Apparatus and method for controlling engine response versus exhaust smoke
    Patent number: 5375577
    Abstract: An engine control system is provided which calculates an optimum air/fuel ratio by minimizing the smoke produced by the engine while at the same time maximizing the engine response time for all altitudes over which the engine operates. The control system includes a microprocessor, an ambient pressure sensor, fuel injectors, and storage means. A manual adjustment is provided that allows an operator to manually adjust the air/fuel ratio within certain pre-defined limits of the optimum value.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: December 27, 1994
    Assignee: Caterpillar Inc.
    Inventors: Edward H. Betts, Jr., William A. Calliss, Phillip J. Houtz, Clark C. Schweigert, Steven C. Swanson, Shawn J. Weck, Brian R. Weller