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).
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Publication number: 20240035176Abstract: 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: ApplicationFiled: October 2, 2023Publication date: February 1, 2024Applicant: 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
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Patent number: 11814741Abstract: 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: GrantFiled: December 13, 2022Date of Patent: November 14, 2023Assignee: 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
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Publication number: 20230305914Abstract: 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: ApplicationFiled: May 31, 2023Publication date: September 28, 2023Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.Inventors: Andrew T. B. Stuart, Raynald G. LaChance, Edward D. B. Stuart, Jaideep S. Spal
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Publication number: 20230295815Abstract: 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: ApplicationFiled: July 15, 2021Publication date: September 21, 2023Applicant: 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
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Patent number: 11746428Abstract: 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: GrantFiled: July 6, 2022Date of Patent: September 5, 2023Assignee: KEY DH IP INC./IP STRATEGIQUES DH, INC.Inventors: Andrew T. B. Stuart, Raynald G. Lachance, Edward D. B. Stuart, Jaideep S. Spal
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Publication number: 20230243044Abstract: 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: ApplicationFiled: April 10, 2023Publication date: August 3, 2023Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.Inventors: Andrew T. B. Stuart, Edward D. B. Stuart, Raynald G. LaChance, Erick S. Dykstra
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Patent number: 11713511Abstract: 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: GrantFiled: October 26, 2021Date of Patent: August 1, 2023Assignee: KEY DH IP INC./IP STRATEGIQUES DH, INC.Inventors: Erick S. Dykstra, Raynald G. LaChance, Edward D. B. Stuart, Andrew T. B. Stuart
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Publication number: 20230124442Abstract: 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: ApplicationFiled: December 13, 2022Publication date: April 20, 2023Applicant: 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
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Patent number: 11560634Abstract: 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: GrantFiled: December 7, 2021Date of Patent: January 24, 2023Assignee: 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
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Publication number: 20220349071Abstract: 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: ApplicationFiled: July 6, 2022Publication date: November 3, 2022Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.Inventors: ANDREW T. B. STUART, RAYNALD G. LACHANCE, EDWARD D. B. STUART, JAIDEEP S. SPAL
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Patent number: 11401615Abstract: 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: GrantFiled: September 8, 2021Date of Patent: August 2, 2022Inventors: Andrew T. B. Stuart, Raynald G. Lachance, Edward D. B. Stuart, Jaideep S. Spal
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Publication number: 20220220620Abstract: 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: ApplicationFiled: October 26, 2021Publication date: July 14, 2022Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.Inventors: Erick S. Dykstra, Raynald G. LaChance, Edward D. B. Stuart, Andrew T. B. Stuart
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Publication number: 20220090276Abstract: 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: ApplicationFiled: December 7, 2021Publication date: March 24, 2022Applicant: 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
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Publication number: 20220074060Abstract: 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: ApplicationFiled: September 8, 2021Publication date: March 10, 2022Applicant: KEY DH IP INC./IP STRATÉGIQUES DH, INC.Inventors: ANDREW T. B. STUART, RAYNALD G. LACHANCE, EDWARD D. B. STUART, JAIDEEP S. SPAL
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Publication number: 20220018030Abstract: 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: ApplicationFiled: August 14, 2020Publication date: January 20, 2022Inventors: ANDREW T.B. STUART, RAYNALD G. LACHANCE, EDWARD D.B. STUART, SAMANTHA E.L. STUART, JAIDEEP S. SPAL
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Patent number: 11225724Abstract: 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: GrantFiled: August 14, 2020Date of Patent: January 18, 2022Assignee: 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