Patents by Inventor W. Gregg Stocker

W. Gregg Stocker 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).

  • Utilization based power plant control system
    Patent number: 6884533
    Abstract: Systems and methods of controlling fuel cell electric power generation systems. In one embodiment, the control system comprises a current detector for measuring an output current of the fuel cell stack and generating a corresponding current signal, a flow detector for measuring a flow rate of a process gas stream and generating a corresponding flow rate signal, a sensor for measuring a concentration of a component of the reformate stream and generating a corresponding concentration signal, and a processor. The processor is configured to maintain hydrogen utilization in the fuel cell stack at about a user selectable value or within a user selectable range by generating an output signal as a function of the current signal, the flow rate signal and the first concentration signal. The output signal is employed in controlling a process variable impacting hydrogen utilization.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: April 26, 2005
    Assignee: Ballard Generation Systems
    Inventor: W. Gregg Stocker
  • Utilization based power plant control system
    Publication number: 20030224230
    Abstract: Systems and methods of controlling fuel cell electric power generation systems. In one embodiment, the control system comprises a current detector for measuring an output current of the fuel cell stack and generating a corresponding current signal, a flow detector for measuring a flow rate of a process gas stream and generating a corresponding flow rate signal, a sensor for measuring a concentration of a component of the reformate stream and generating a corresponding concentration signal, and a processor. The processor is configured to maintain hydrogen utilization in the fuel cell stack at about a user selectable value or within a user selectable range by generating an output signal as a function of the current signal, the flow rate signal and the first concentration signal. The output signal is employed in controlling a process variable impacting hydrogen utilization.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Applicant: Ballard Generation Systems
    Inventor: W. Gregg Stocker