Patents by Inventor Robert J. Sprafka

Robert J. Sprafka 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).

  • Multi-engine controller
    Patent number: 5949153
    Abstract: A controller and method for controlling two or more electrical generators to meet the applied load, varies the activation/deactivation sequence of the generators according to and instruction set selected by time or day or other discrete event. The controller and method also control discretionary loads via a request to run process which allows the generation system to be readied for the additional load.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: September 7, 1999
    Assignee: Consolidated Natural Gas Service Company, Inc.
    Inventors: Raymond R. Tison, Ross F. Nigro, Robert J. Sprafka