Patents by Inventor Jack Kummerow

Jack Kummerow 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).

  • Humidifier for fuel cell systems
    Patent number: 8919746
    Abstract: A humidifier for a fuel cell system comprises a stack of thin plates having planar sealing surfaces at their edges. A water permeable membrane is provided between each pair of plates. Each plate defines a gas flow passage along its top and bottom surfaces, with an inlet and outlet defined along edges of the plate, and a flow field extending between the inlet and outlet openings. Inlet and outlet passages connect the inlet and outlet openings to the flow field, and the planar sealing surfaces on both sides of the plate include bridging portions which extend across the inlet and outlet passages. Support structures are provided throughout the flow field and the inlet and outlet passages to support the membrane and diffusion medium layer(s). The support structures may optionally be connected together by webs having holes for flow distribution between the top and bottom of each plate.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: December 30, 2014
    Assignee: Dana Canada Corporation
    Inventors: Doug Vanderwees, Manaf Hasan, Jon Wilson, Jack Kummerow
  • Humidifier for Fuel Cell Systems
    Publication number: 20120181712
    Abstract: A humidifier for a fuel cell system comprises a stack of thin plates having planar sealing surfaces at their edges. A water permeable membrane is provided between each pair of plates. Each plate defines a gas flow passage along its top and bottom surfaces, with an inlet and outlet defined along edges of the plate, and a flow field extending between the inlet and outlet openings. Inlet and outlet passages connect the inlet and outlet openings to the flow field, and the planar sealing surfaces on both sides of the plate include bridging portions which extend across the inlet and outlet passages. Support structures are provided throughout the flow field and the inlet and outlet passages to support the membrane and diffusion medium layer(s). The support structures may optionally be connected together by webs having holes for flow distribution between the top and bottom of each plate.
    Type: Application
    Filed: September 6, 2011
    Publication date: July 19, 2012
    Applicant: Dana Canada Corporation
    Inventors: Doug Vanderwees, Manaf Hasan, Jon Wilson, Jack Kummerow