Patents by Inventor Jon Meredith

Jon Meredith 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).

  • Preventing backfeeding of current to a fuel cell stack from energy storage
    Publication number: 20070141428
    Abstract: A fuel cell system that includes a fuel cell stack, and energy storage that is coupled to the fuel cell stack, and a switch that is coupled between the energy storage and the fuel cell stack. The fuel cell system also includes a controller to measure at least one current to determine a likelihood of a current flowing from the energy storage to the stack at a later time and based on the determination, operate the switch to prevent the current.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 21, 2007
    Inventors: Dustan Skidmore, Jon Meredith
  • Detecting leakage from a capacitor of a fuel cell system
    Publication number: 20070141404
    Abstract: A fuel cell system includes a fuel cell stack, energy storage and a control subsystem. The energy storage supplements a power that is provided by the fuel cell stack, and the energy storage is coupled to the fuel cell stack and has a voltage. The control subsystem monitors the energy storage for a leakage and takes an action in response to detecting the leakage.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 21, 2007
    Inventors: Dustan Skidmore, Jon Meredith
  • Maximizing energy storage life in a fuel cell system using active temperature compensation
    Publication number: 20070141411
    Abstract: A fuel cell system includes a fuel cell stack, energy storage and a control subsystem. The energy storage supplements a power that is provided by the fuel cell stack. The energy storage is coupled to the fuel cell stack and has a voltage. The control system regulates a peak of the voltage based on a temperature of the energy storage.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 21, 2007
    Inventors: Jon Meredith, Dustan Skidmore
  • Storing energy in a fuel cell system
    Publication number: 20070141429
    Abstract: A fuel cell system includes a fuel cell stack, a DC-to-DC converter and at least one capacitor. The fuel cell stack provides a stack voltage, and the DC-to-DC converter receives the stack voltage. The capacitor(s) are coupled between the fuel cell stack and the DC-to-DC converter.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 21, 2007
    Inventors: David Robertson, Jon Meredith, Mark Schneider, Dustan Skidmore
  • Technique and apparatus to measure a fuel cell parameter
    Publication number: 20060074574
    Abstract: A technique includes introducing an electrical perturbation to a fuel cell system during operation of the fuel cell system. This electrical perturbation does not substantially disrupt the operation of the fuel cell system. In response to the perturbation, an electrical parameter of the fuel cell system is measured.
    Type: Application
    Filed: September 15, 2004
    Publication date: April 6, 2006
    Inventors: Michael Gasda, Michael Misiewicz, Garnet Prescott, Steve Buelte, Jon Meredith
  • Regulating the communication of power to components of a fuel cell system
    Publication number: 20040146755
    Abstract: A technique includes providing power to a group fuel cell system components and providing sensors to monitor conditions of the fuel cell system. The status of each sensor is associated with a switch, and the switches are serially coupled together. The delivery of power to the fuel cell system components is regulated in response to states of the switches.
    Type: Application
    Filed: January 23, 2003
    Publication date: July 29, 2004
    Inventors: Jon Meredith, Mark Pellerin, Dustan L. Skidmore