Patents by Inventor Steve Rysdam

Steve Rysdam 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).

  • EMI protection and fuel cell systems employing the same
    Patent number: 7176385
    Abstract: A scheme is provided for reducing the degree to which EMI from high voltage components of a fuel cell system or a fuel cell powered vehicle is induced in low voltage components of the system or vehicle. In accordance with one embodiment of the present invention, the electrical components of the system's high voltage region and the electrical components of the system's low voltage region are positioned such that, absent EMI shielding structure between the high and low voltage components, a substantial amount of EMI from the high voltage components would be induced in the low voltage components. EMI shielding structure is configured to define a conductive enclosure about the high voltage region and the low voltage region and a conductive EMI barrier between the high voltage region and the low voltage region.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: February 13, 2007
    Assignee: General Motors Corporation
    Inventors: Ralph Hobmeyr, Jeff Shull, Titus Herschberger, Hartmut Hinz, Steve Rysdam
  • EMI protection and fuel cell systems employing the same
    Publication number: 20050092534
    Abstract: A scheme is provided for reducing the degree to which EMI from high voltage components of a fuel cell system or a fuel cell powered vehicle is induced in low voltage components of the system or vehicle. In accordance with one embodiment of the present invention, the electrical components of the system's high voltage region and the electrical components of the system's low voltage region are positioned such that, absent EMI shielding structure between the high and low voltage components, a substantial amount of EMI from the high voltage components would be induced in the low voltage components. EMI shielding structure is configured to define a conductive enclosure about the high voltage region and the low voltage region and a conductive EMI barrier between the high voltage region and the low voltage region.
    Type: Application
    Filed: November 5, 2003
    Publication date: May 5, 2005
    Inventors: Ralph Hobmeyr, Jeff Shull, Titus Herschberger, Hartmut Hinz, Steve Rysdam