Patents by Inventor Brendan Ayre

Brendan Ayre 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 interconnector and method for making a fuel cell interconnector
    Patent number: 11114677
    Abstract: An interconnector for a solid oxide fuel cell is manufactured by single-press compacting a powder blend to form a green interconnector with a desired shape of a final interconnector. The powder blend includes chromium and iron, and may include an organic lubricant. At least 50 wt % or more of an iron portion of the powder blend comprises iron particles smaller than 45 um. The green interconnector is then sintered and oxidized to form the final interconnector. The oxidation step occurs in a continuous flow furnace in which a controlled atmosphere (e.g., humidified air) is fed into the furnace in the travel direction of the interconnector. The final interconnector comprises at least 90 wt % chromium, at least 3 wt % iron, and less than 0.2 wt % nitrogen. An average density within a flow field of the final interconnector may be less than 6.75 g/cc.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: September 7, 2021
    Assignee: Stackpole International Powder Metal, ULC
    Inventors: Roger Lawcock, Brendan Ayre, Rohith Shivanath
  • Composition and processing of metallic interconnects for SOFC stacks
    Patent number: 9993874
    Abstract: A chromium-iron interconnect includes at least one of Fe rich regions in the interconnect and carbon in the interconnect.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: June 12, 2018
    Assignees: BLOOM ENERGY CORPORATION, STACKPOLE INTERNATIONAL POWDER METAL, ULC
    Inventors: Rohith Shivanath, Brendan Ayre, Tad Armstrong, Michael Gasda, Daniel Darga, Harald Herchen, Chockkalingam Karuppaiah, Brandon Dawson, Ravi Oswal
  • COMPOSITION AND PROCESSING OF METALLIC INTERCONNECTS FOR SOFC STACKS
    Publication number: 20150244004
    Abstract: A chromium-iron interconnect includes at least one of Fe rich regions in the interconnect and carbon in the interconnect.
    Type: Application
    Filed: February 24, 2015
    Publication date: August 27, 2015
    Inventors: Rohith SHIVANATH, Brendan AYRE, Tad ARMSTRONG, Michael GASDA, Daniel DARGA, Harald HERCHEN, Chockkalingam KARUPPAIAH, Brandon DAWSON, Ravi OSWAL
  • FUEL CELL INTERCONNECTOR AND METHOD FOR MAKING A FUEL CELL INTERCONNECTOR
    Publication number: 20150207154
    Abstract: An interconnector for a solid oxide fuel cell is manufactured by single-press compacting a powder blend to form a green interconnector with a desired shape of a final interconnector. The powder blend includes chromium and iron, and may include an organic lubricant. At least 50 wt % or more of an iron portion of the powder blend comprises iron particles smaller than 45 um. The green interconnector is then sintered and oxidized to form the final interconnector. The oxidation step occurs in a continuous flow furnace in which a controlled atmosphere (e.g., humidified air) is fed into the furnace in the travel direction of the interconnector. The final interconnector comprises at least 90 wt % chromium, at least 3 wt % iron, and less than 0.2 wt % nitrogen. An average density within a flow field of the final interconnector may be less than 6.75 g/cc.
    Type: Application
    Filed: July 8, 2013
    Publication date: July 23, 2015
    Inventors: Rohith Shivanath, Brendan Ayre, Roger Lawcock