Patents by Inventor Tom Zawodzinski

Tom Zawodzinski 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).

  • Fuel cell system with flow field capable of removing liquid water from the high-pressure channels
    Patent number: 8029942
    Abstract: A fuel cell system having flow fields capable to operate like interdigitated flow fields, but in the same time allowing the removal of liquid water collected in the high-pressure channels, throughout individual exhaust passages. In a preferred embodiment, the channels follow radial-circumferential trajectories, each channel being provided with individual exhaust passages. In another preferred embodiment, each channel is provided with a valve control in both individual supply passages and individual exhaust passages allowing the system to operate alternatively as an interdigitated flow field as well as an open-channel flow field.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: October 4, 2011
    Assignee: Case Western Reserve University
    Inventors: Vladimir Gurau, Christine Zawodzinski, Tom Zawodzinski, Jesse Wainright
  • Fuel cell system with flow field capable of removing liquid water from the high-pressure channels
    Publication number: 20050191541
    Abstract: A fuel cell system having flow fields capable to operate like interdigitated flow fields, but in the same time allowing the removal of liquid water collected in the high-pressure channels, throughout individual exhaust passages. In a preferred embodiment, the channels follow radial-circumferential trajectories, each channel being provided with individual exhaust passages. In another preferred embodiment, each channel is provided with a valve control in both individual supply passages and individual exhaust passages allowing the system to operate alternatively as an interdigitated flow field as well as an open-channel flow field.
    Type: Application
    Filed: February 4, 2005
    Publication date: September 1, 2005
    Inventors: Vladimir Gurau, Christine Zawodzinski, Tom Zawodzinski, Jesse Wainright