Patents by Inventor Edward D. B. Stuart

Edward D. B. Stuart 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).

  • Publication number: 20240035176
    Abstract: Disclosed is an integrally combined electrical current carrier, circulation chamber and frame (CCF) formed as a single or double part (CCF) for use in unipolar electrochemical devices. The CCF is structured to define an internal circulation chamber for circulation of electrolyte, products, and reactants as well as apertures which form flow passageways when the filter press device is assembled. Affixed on opposed surfaces of the CCFs are electrically conductive planar electroactive structures which are in electrical contact with the CCF. The circulation chamber is formed by the depth of the CCF itself between opposing electroactive structures. Multiple CCFs are assembled and compressed together to form the filter press electrolyser apparatus. When power is applied to the CCFs and electroactive structures, the reactants, once they flow into the circulation chamber with the electrolyte, undergo redox reactions to produce products that are collected and exit the electrolyser in upper flow pathways.
    Type: Application
    Filed: October 2, 2023
    Publication date: February 1, 2024
    Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: Andrew T. B. Stuart, Raynald G. LaChance, Edward D. B. Stuart, Samantha E. L. Stuart, Jaideep S. Spal
  • Patent number: 11814741
    Abstract: Disclosed is an integrally combined electrical current carrier, circulation chamber and frame (CCF) formed as a single or double part (CCF) for use in unipolar electrochemical devices, such as a filter press electrolyser apparatus. The CCF is structured to define an internal circulation chamber for circulation of electrolyte, products, and reactants as well as apertures which form flow passageways when the filter press device is assembled. Affixed on opposed surfaces of the CCFs are electrically conductive planar electroactive structures which are in electrical contact with the CCF. The circulation chamber is formed by the depth of the CCF itself between opposing electroactive structures. Multiple CCFs are assembled and compressed together to form the filter press electrolyser apparatus. The flow passageway apertures within the assembled filter press electrolyser are aligned to form flow pathways, located above and below the circulation chambers.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: November 14, 2023
    Assignee: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: Andrew T. B. Stuart, Raynald G. Lachance, Edward D. B. Stuart, Samantha E. L. Stuart, Jaideep S. Spal
  • Publication number: 20230305914
    Abstract: Disclosed is an end assembly for use in a unipolar filter press electrolyser, where the unipolar filter press electrolyser has a filter press stack. The end assembly of the unipolar filter press electrolyser includes an end plate component having two apertures, the two apertures being alignable with channels formed in the filter press stack. The two apertures include a first aperture configured to receive a stream of liquid electrolyte and gases from the filter press stack, and a second aperture configured to receive a stream of recirculated liquid electrolyte. In addition, the end assembly includes an end clamp configured to apply a clamping force on the end plate component to securely retain the filter press stack. The end clamp includes one gas offtake port to extract gases from the stream of liquid electrolyte and gases from the first aperture and discharge the gases out of the unipolar filter press electrolyser.
    Type: Application
    Filed: May 31, 2023
    Publication date: September 28, 2023
    Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: Andrew T. B. Stuart, Raynald G. LaChance, Edward D. B. Stuart, Jaideep S. Spal
  • Publication number: 20230295815
    Abstract: Disclosed is a combined electrical current carrier, circulation chamber and frame (CCF) formed as a single or double part (CCF) for use in unipolar electrochemical devices, such as a filter press electrolyser apparatus. The CCF is structured to define an internal circulation chamber for circulation of electrolyte, products, and reactants as well as apertures which form flow passageways when the filter press device is assembled. Affixed on opposed surfaces of the CCFs are electrically conductive planar electroactive structures which are in electrical contact with the CCF. The circulation chamber is formed by the depth of the CCF itself between opposing electroactive structures. Multiple CCFs are assembled and compressed together to form the filter press electrolyser apparatus. The flow passageway apertures within the assembled filter press electrolyser are aligned to form flow pathways, located above and below the circulation chambers. Reactants and electrolyte are input along the bottom flow pathways.
    Type: Application
    Filed: July 15, 2021
    Publication date: September 21, 2023
    Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: Andrew T. B. Stuart, Samantha E. L. Stuart, Edward D. B. Stuart, Raynald G. LaChance, Jaideep S. Spal
  • Patent number: 11746428
    Abstract: Disclosed is an end assembly for use in a unipolar filter press electrolyser, where the unipolar filter press electrolyser has a filter press stack. The end assembly of the unipolar filter press electrolyser includes an end plate component having two apertures, the two apertures being alignable with channels formed in the filter press stack. The two apertures include a first aperture configured to receive a stream of liquid electrolyte and gases from the filter press stack, and a second aperture configured to receive a stream of recirculated liquid electrolyte. In addition, the end assembly includes an end clamp configured to apply a clamping force on the end plate component to securely retain the filter press stack. The end clamp includes one gas offtake port to extract gases from the stream of liquid electrolyte and gases from the first aperture and discharge the gases out of the unipolar filter press electrolyser.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: September 5, 2023
    Assignee: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: Andrew T. B. Stuart, Raynald G. Lachance, Edward D. B. Stuart, Jaideep S. Spal
  • Publication number: 20230243044
    Abstract: The present disclosure provides a high-power unipolar water electrolysis plant including a rectifier, a first U-bank, and a second U-bank electrically connected in series to the rectifier and to the first U-bank. Each U-bank is formed by a pair of adjacent, longitudinal cell arrays electrically connected to each other. The cell arrays are arranged in a spaced apart, side-by-side arrangement with a service corridor defined therebetween to allow sectional maintenance to be performed on each cell array. Each cell array has a plurality of unipolar water electrolyser cells. Each U-bank has input conduits for delivering water and cooling water to each cell array, output conduits for carrying hydrogen gas, oxygen gas and cooling water away from each cell array. The high-power unipolar water electrolysis plant includes a first jumper and a second jumper to isolate the U-bank, an electrical bypass busbar extension and a third jumper to bypass the U-bank.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 3, 2023
    Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: Andrew T. B. Stuart, Edward D. B. Stuart, Raynald G. LaChance, Erick S. Dykstra
  • Patent number: 11713511
    Abstract: The present disclosure provides a high-power unipolar water electrolysis plant including a rectifier, a first U-bank, and a second U-bank electrically connected in series to the rectifier and to the first U-bank. Each U-bank is formed by a pair of adjacent, longitudinal cell arrays electrically connected to each other. The cell arrays are arranged in a spaced apart, side-by-side arrangement with a service corridor defined therebetween to allow sectional maintenance to be performed on each cell array. Each cell array has a plurality of unipolar water electrolyser cells. Each U-bank has input conduits for delivering water and cooling water to each cell array, output conduits for carrying hydrogen gas, oxygen gas and cooling water away from each cell array. The high-power unipolar water electrolysis plant includes a first jumper and a second jumper to isolate the U-bank, an electrical bypass busbar extension and a third jumper to bypass the U-bank.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: August 1, 2023
    Assignee: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: Erick S. Dykstra, Raynald G. LaChance, Edward D. B. Stuart, Andrew T. B. Stuart
  • Publication number: 20230124442
    Abstract: Disclosed is an integrally combined electrical current carrier, circulation chamber and frame (CCF) formed as a single or double part (CCF) for use in unipolar electrochemical devices, such as a filter press electrolyser apparatus. The CCF is structured to define an internal circulation chamber for circulation of electrolyte, products, and reactants as well as apertures which form flow passageways when the filter press device is assembled. Affixed on opposed surfaces of the CCFs are electrically conductive planar electroactive structures which are in electrical contact with the CCF. The circulation chamber is formed by the depth of the CCF itself between opposing electroactive structures. Multiple CCFs are assembled and compressed together to form the filter press electrolyser apparatus. The flow passageway apertures within the assembled filter press electrolyser are aligned to form flow pathways, located above and below the circulation chambers.
    Type: Application
    Filed: December 13, 2022
    Publication date: April 20, 2023
    Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: ANDREW T.B. STUART, RAYNALD G. LACHANCE, EDWARD D.B. STUART, SAMANTHA E.L. STUART, JAIDEEP S. SPAL
  • Patent number: 11560634
    Abstract: Disclosed is an integrally combined electrical current carrier, circulation chamber and frame (CCF) formed as a single or double part (CCF) for use in unipolar electrochemical devices, such as a filter press electrolyser apparatus. The CCF is structured to define an internal circulation chamber for circulation of electrolyte, products, and reactants as well as apertures which form flow passageways when the filter press device is assembled. Affixed on opposed surfaces of the CCFs are electrically conductive planar electroactive structures which are in electrical contact with the CCF. The circulation chamber is formed by the depth of the CCF itself between opposing electroactive structures. Multiple CCFs are assembled and compressed together to form the filter press electrolyser apparatus. The flow passageway apertures within the assembled filter press electrolyser are aligned to form flow pathways, located above and below the circulation chambers.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: January 24, 2023
    Assignee: KEY DH IP INC./IP STRATÉGIQUES DH, INC.
    Inventors: Andrew T.B. Stuart, Raynald G. Lachance, Edward D.B. Stuart, Samantha E.L. Stuart, Jaideep S. Spal
  • Publication number: 20220349071
    Abstract: Disclosed is an end assembly for use in a unipolar filter press electrolyser, where the unipolar filter press electrolyser has a filter press stack. The end assembly of the unipolar filter press electrolyser includes an end plate component having two apertures, the two apertures being alignable with channels formed in the filter press stack. The two apertures include a first aperture configured to receive a stream of liquid electrolyte and gases from the filter press stack, and a second aperture configured to receive a stream of recirculated liquid electrolyte. In addition, the end assembly includes an end clamp configured to apply a clamping force on the end plate component to securely retain the filter press stack. The end clamp includes one gas offtake port to extract gases from the stream of liquid electrolyte and gases from the first aperture and discharge the gases out of the unipolar filter press electrolyser.
    Type: Application
    Filed: July 6, 2022
    Publication date: November 3, 2022
    Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: ANDREW T. B. STUART, RAYNALD G. LACHANCE, EDWARD D. B. STUART, JAIDEEP S. SPAL
  • Patent number: 11401615
    Abstract: Disclosed is an end assembly for use in a unipolar filter press electrolyser, where the unipolar filter press electrolyser has a filter press stack. The end assembly of the unipolar filter press electrolyser includes an end plate component having two apertures, the two apertures being alignable with channels formed in the filter press stack. The two apertures include a first aperture configured to receive a stream of liquid electrolyte and gases from the filter press stack, and a second aperture configured to receive a stream of recirculated liquid electrolyte. In addition, the end assembly includes an end clamp configured to apply a clamping force on the end plate component to securely retain the filter press stack. The end clamp includes one gas offtake port to extract gases from the stream of liquid electrolyte and gases from the first aperture and discharge the gases out of the unipolar filter press electrolyser.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: August 2, 2022
    Inventors: Andrew T. B. Stuart, Raynald G. Lachance, Edward D. B. Stuart, Jaideep S. Spal
  • Publication number: 20220220620
    Abstract: The present disclosure provides a high-power unipolar water electrolysis plant including a rectifier, a first U-bank, and a second U-bank electrically connected in series to the rectifier and to the first U-bank. Each U-bank is formed by a pair of adjacent, longitudinal cell arrays electrically connected to each other. The cell arrays are arranged in a spaced apart, side-by-side arrangement with a service corridor defined therebetween to allow sectional maintenance to be performed on each cell array. Each cell array has a plurality of unipolar water electrolyser cells. Each U-bank has input conduits for delivering water and cooling water to each cell array, output conduits for carrying hydrogen gas, oxygen gas and cooling water away from each cell array. The high-power unipolar water electrolysis plant includes a first jumper and a second jumper to isolate the U-bank, an electrical bypass busbar extension and a third jumper to bypass the U-bank.
    Type: Application
    Filed: October 26, 2021
    Publication date: July 14, 2022
    Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: Erick S. Dykstra, Raynald G. LaChance, Edward D. B. Stuart, Andrew T. B. Stuart
  • Publication number: 20220090276
    Abstract: Disclosed is an integrally combined electrical current carrier, circulation chamber and frame (CCF) formed as a single or double part (CCF) for use in unipolar electrochemical devices, such as a filter press electrolyser apparatus. The CCF is structured to define an internal circulation chamber for circulation of electrolyte, products, and reactants as well as apertures which form flow passageways when the filter press device is assembled. Affixed on opposed surfaces of the CCFs are electrically conductive planar electroactive structures which are in electrical contact with the CCF. The circulation chamber is formed by the depth of the CCF itself between opposing electroactive structures. Multiple CCFs are assembled and compressed together to form the filter press electrolyser apparatus. The flow passageway apertures within the assembled filter press electrolyser are aligned to form flow pathways, located above and below the circulation chambers.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 24, 2022
    Applicant: KEY DH IP INC./IP STRATÉGIQUES DH, INC.
    Inventors: ANDREW T.B. STUART, RAYNALD G. LACHANCE, EDWARD D.B. STUART, SAMANTHA E.L. STUART, JAIDEEP S. SPAL
  • Publication number: 20220074060
    Abstract: Disclosed is an end assembly for use in a unipolar filter press electrolyser, where the unipolar filter press electrolyser has a filter press stack. The end assembly of the unipolar filter press electrolyser includes an end plate component having two apertures, the two apertures being alignable with channels formed in the filter press stack. The two apertures include a first aperture configured to receive a stream of liquid electrolyte and gases from the filter press stack, and a second aperture configured to receive a stream of recirculated liquid electrolyte. In addition, the end assembly includes an end clamp configured to apply a clamping force on the end plate component to securely retain the filter press stack. The end clamp includes one gas offtake port to extract gases from the stream of liquid electrolyte and gases from the first aperture and discharge the gases out of the unipolar filter press electrolyser.
    Type: Application
    Filed: September 8, 2021
    Publication date: March 10, 2022
    Applicant: KEY DH IP INC./IP STRATÉGIQUES DH, INC.
    Inventors: ANDREW T. B. STUART, RAYNALD G. LACHANCE, EDWARD D. B. STUART, JAIDEEP S. SPAL
  • Publication number: 20220018030
    Abstract: Disclosed is an integrally combined electrical current carrier, circulation chamber and frame (CCF) formed as a single or double part (CCF) for use in unipolar electrochemical devices, such as a filter press electrolyser apparatus. The CCF is structured to define an internal circulation chamber for circulation of electrolyte, products, and reactants as well as apertures which form flow passageways when the filter press device is assembled. Affixed on opposed surfaces of the CCFs are electrically conductive planar electroactive structures which are in electrical contact with the CCF. The circulation chamber is formed by the depth of the CCF itself between opposing electroactive structures. Multiple CCFs are assembled and compressed together to form the filter press electrolyser apparatus. The flow passageway apertures within the assembled filter press electrolyser are aligned to form flow pathways, located above and below the circulation chambers.
    Type: Application
    Filed: August 14, 2020
    Publication date: January 20, 2022
    Inventors: ANDREW T.B. STUART, RAYNALD G. LACHANCE, EDWARD D.B. STUART, SAMANTHA E.L. STUART, JAIDEEP S. SPAL
  • Patent number: 11225724
    Abstract: Disclosed is an integrally combined electrical current carrier, circulation chamber and frame (CCF) formed as a single or double part (CCF) for use in unipolar electrochemical devices, such as a filter press electrolyser apparatus. The CCF is structured to define an internal circulation chamber for circulation of electrolyte, products, and reactants as well as apertures which form flow passageways when the filter press device is assembled. Affixed on opposed surfaces of the CCFs are electrically conductive planar electroactive structures which are in electrical contact with the CCF. The circulation chamber is formed by the depth of the CCF itself between opposing electroactive structures. Multiple CCFs are assembled and compressed together to form the filter press electrolyser apparatus. The flow passageway apertures within the assembled filter press electrolyser are aligned to form flow pathways, located above and below the circulation chambers.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: January 18, 2022
    Assignee: KEY DH IP INC./IP STRATEGIQUES DH, INC.
    Inventors: Andrew T. B. Stuart, Raynald G. Lachance, Edward D. B. Stuart, Samantha E. L. Stuart, Jaideep S. Spal