Patents by Inventor Steven C. Tallman

Steven C. Tallman 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).

  • Fluid cell system reactant supply and effluent storage cartridges
    Patent number: 7105245
    Abstract: Reactant supply and effluent storage cartridges adapted for use with a closed liquid feed fuel cell system, as well as closed liquid feed fuel cell systems. The cartridge includes at least first and second volumes and comprises: a first reactant reservoir for holding a first reactant, the first reactant reservoir being configured to occupy substantially all of the first volume when filled with the first reactant; a second reactant reservoir for holding a second reactant, the second reactant reservoir being configured to occupy substantially all of the second volume when filled with the second reactant; and an effluent reservoir for holding effluent produced by the fuel cell system, the effluent reservoir being configured to occupy, when filled with the effluent produced by the fuel cell system, a portion of the first volume, a portion of the second volume, or a portion of the first and second volumes. The reactant supply cartridge of may further comprise an electrolyte reservoir for holding an electrolyte.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: September 12, 2006
    Assignee: Neah Power Systems, Inc.
    Inventors: Leroy J. Ohlsen, Steven C. Tallman, George W. Hawkins
  • Closed liquid feed fuel cell systems and reactant supply and effluent storage cartridges adapted for use with the same
    Publication number: 20040096721
    Abstract: Reactant supply and effluent storage cartridges adapted for use with a closed liquid feed fuel cell system, as well as closed liquid feed fuel cell systems. The cartridge includes at least first and second volumes and comprises: a first reactant reservoir for holding a first reactant, the first reactant reservoir being configured to occupy substantially all of the first volume when filled with the first reactant; a second reactant reservoir for holding a second reactant, the second reactant reservoir being configured to occupy substantially all of the second volume when filled with the second reactant; and an effluent reservoir for holding effluent produced by the fuel cell system, the effluent reservoir being configured to occupy, when filled with the effluent produced by the fuel cell system, a portion of the first volume, a portion of the second volume, or a portion of the first and second volumes. The reactant supply cartridge of may further comprise an electrolyte reservoir for holding an electrolyte.
    Type: Application
    Filed: July 2, 2003
    Publication date: May 20, 2004
    Inventors: Leroy J. Ohlsen, Steven C. Tallman, George W. Hawkins