Patents by Inventor Warren Ziegler

Warren Ziegler 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).

  • Patent number: 7659025
    Abstract: A process for manufacturing a solid oxide fuel cell involves forming a tubular anode comprising an electrolyte substance and an oxide of an electrochemically active metallic substance without a distinct pore forming substance, sintering the tubular anode, forming an electrolyte onto the sintered anode, forming a cathode onto the electrolyte, and after forming the electrolyte and the cathode, reducing the oxide of the electrochemically active substance in the sintered anode to form pores in the anode.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: February 9, 2010
    Assignee: Acumentrics Corporation
    Inventors: Nigel Sammes, Tracy Murray, Michael Brown, Warren Ziegler
  • Publication number: 20080308975
    Abstract: A process for manufacturing a solid oxide fuel cell involves forming a tubular anode comprising an electrolyte substance and an oxide of an electrochemically active metallic substance without a distinct pore forming substance, sintering the tubular anode, forming an electrolyte onto the sintered anode, forming a cathode onto the electrolyte, and after forming the electrolyte and the cathode, reducing the oxide of the electrochemically active substance in the sintered anode to form pores in the anode.
    Type: Application
    Filed: August 26, 2008
    Publication date: December 18, 2008
    Applicant: ACUMENTRICS CORPORATION
    Inventors: Nigel Sammes, Tracy Murray, Michael Brown, Warren Ziegler
  • Patent number: 7416802
    Abstract: A process for manufacturing a solid oxide fuel cell comprises, in one embodiment according to the invention: forming a plastic mass comprising a mixture of an electrolyte substance and an electrochemically active substance; extruding the plastic mass through a die to form an extruded tube; and sintering the extruded tube to form a tubular anode capable of supporting the solid oxide fuel cell. The process may further comprise, after sintering the extruded tube, layering an electrolyte onto the tubular anode; and, after layering the electrolyte, layering a cathode onto the electrolyte. In a further related embodiment, the process further comprises co-extruding more than one anode layer to form the tubular anode. Each of the anode layers may comprise a ratio of electrochemically active substance to electrolyte substance, with such ratios being higher for layers that are layered further from a surface of the anode that contacts a fuel gas than for layers that are layered closer to the fuel gas.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: August 26, 2008
    Assignee: Acumentrics Corporation
    Inventors: Nigel Sammes, Tracy Murray, Michael Brown, Warren Ziegler
  • Publication number: 20020028367
    Abstract: A process for manufacturing a solid oxide fuel cell comprises, in one embodiment according to the invention: forming a plastic mass comprising a mixture of an electrolyte substance and an electrochemically active substance; extruding the plastic mass through a die to form an extruded tube; and sintering the extruded tube to form a tubular anode capable of supporting the solid oxide fuel cell. The process may further comprise, after sintering the extruded tube, layering an electrolyte onto the tubular anode; and, after layering the electrolyte, layering a cathode onto the electrolyte.
    Type: Application
    Filed: May 22, 2001
    Publication date: March 7, 2002
    Inventors: Nigel Sammes, Tracy Murray, Michael Brown, Warren Ziegler