Patents by Inventor George Sergi
George Sergi 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: 20240068110Abstract: An anode apparatus for mounting on an external surface of a concrete structure to provide cathodic protection of metal members in the concrete uses a pre-assembled body which is typically elongate carrying a longitudinal anode, which can be sacrificial or impressed current, together with a supporting material having a front face for attachment to the surface and an impermeable plastic covering material at the rear face covering the anode and the supporting material when the front face is attached to the surface of the concrete. A channel defined on the front face is arranged to receive a layer of a conformable ionically conductive adhesive material for attachment to the external surface. A distance of the edge of the covering material is arranged to be similar to a distance of the metal from the external surface such that wetting and drying effects of environmental moisture are the same for the anode as for the metal components.Type: ApplicationFiled: August 30, 2022Publication date: February 29, 2024Inventors: John Chris Ball, David Whitmore, Martin Beaudette, Gerald Bruce Hiebert, George Sergi, David Simpson
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Patent number: 10640877Abstract: In a method for cathodically protecting and/or passivating a metal section in an ionically conductive material such as steel reinforcement in concrete or mortar, an impressed current or sacrificial anode communicates electrical current to the metal section and a storage component of electrical energy which can be a cell, battery or capacitor is provided as a component of the anode. The storage component can have replacement energy introduced by re-charging or replacing the component from an outside supply. Typically the cell or storage capacitor has an outer case which carries an anode material as an integral outer component.Type: GrantFiled: November 2, 2016Date of Patent: May 5, 2020Assignee: Vector Remediation Ltd.Inventors: David Matthew Simpson, George Sergi, Tejal Nikita Rathod, David William Whitmore
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Publication number: 20200095691Abstract: In a method for cathodically protecting and/or passivating a metal section in an ionically conductive material such as steel reinforcement in concrete or mortar, an impressed current or sacrificial anode communicates electrical current to the metal section and a storage component of electrical energy which can be a cell, battery or capacitor is provided as a component of the anode. The storage component can have replacement energy introduced by re-charging or replacing the component from an outside supply. Typically the cell or storage capacitor has an outer case which carries an anode material as an integral outer component.Type: ApplicationFiled: November 26, 2019Publication date: March 26, 2020Inventors: David Matthew Simpson, George Sergi, Tejal Nikita Rathod, David William Whitmore
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Patent number: 10053782Abstract: Corrosion protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.Type: GrantFiled: January 21, 2015Date of Patent: August 21, 2018Assignee: Vector Corrosion Technologies Ltd.Inventors: George Sergi, Attanayake Mudiyanselage Gamini Seneviratne, David Whitmore
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Publication number: 20170121828Abstract: In a method for cathodically protecting and/or passivating a metal section in an ionically conductive material such as steel reinforcement in concrete or mortar, an impressed current or sacrificial anode communicates electrical current to the metal section and a storage component of electrical energy which can be a cell, battery or capacitor is provided as a component of the anode. The storage component can have replacement energy introduced by re-charging or replacing the component from an outside supply. Typically the cell or storage capacitor has an outer case which carries an anode material as an integral outer component.Type: ApplicationFiled: November 2, 2016Publication date: May 4, 2017Inventors: David Matthew Simpson, George Sergi, Tejal Nikita Rathod, David William Whitmore
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Publication number: 20150299868Abstract: Corrosion protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.Type: ApplicationFiled: January 21, 2015Publication date: October 22, 2015Inventors: George Sergi, Attanayake Mudiyanselage Gamini Seneviratne, David Whitmore
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Patent number: 8968549Abstract: Cathodic protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.Type: GrantFiled: July 19, 2012Date of Patent: March 3, 2015Assignee: Vector Corrosion Technologies Ltd.Inventors: George Sergi, Attanayake Mudiyanselage Gamini Seneviratne, David Whitmore
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Patent number: 8961746Abstract: Cathodic protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.Type: GrantFiled: July 19, 2012Date of Patent: February 24, 2015Assignee: Vector Corrosion Technologies Ltd.Inventors: George Sergi, Attanayake Mudiyanselage Gamini Seneviratne, David Whitmore
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Publication number: 20140021063Abstract: Cathodic protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.Type: ApplicationFiled: July 19, 2012Publication date: January 23, 2014Inventors: George Sergi, Attanayake Mudiyanselage Gamini Seneviratne, David Whitmore
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Publication number: 20140021062Abstract: Cathodic protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.Type: ApplicationFiled: July 19, 2012Publication date: January 23, 2014Inventors: George Sergi, Attanayake Mudiyanselage Gamini Seneviratne, David Whitmore
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Publication number: 20140021039Abstract: Cathodic protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.Type: ApplicationFiled: July 19, 2012Publication date: January 23, 2014Inventors: George Sergi, Attanayake Mudiyanselage Gamini Seneviratne, David Whitmore
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Patent number: 6303017Abstract: Reinforcement in concrete is cathodically protected by galvanically connecting a sacrificial anode, such as a zinc or zinc alloy anode, to the reinforcement, and contacting the anode with an electrolyte solution having a pH which is maintained sufficiently high for corrosion of the anode to occur, and for passive film formation on the anode to be avoided. The pH of the electrolyte is preferably at least 0.2 units, and preferably from 0.5 units to more than 1.0 units, above the pH value at which passivity of the anode would occur. The electrolyte may be for example sodium hydroxide or potassium hydroxide but is preferably lithium hydroxide which also acts as an alkali-silica reaction inhibitor.Type: GrantFiled: August 20, 1999Date of Patent: October 16, 2001Assignee: Aston Material Services LimitedInventors: Christopher L. Page, George Sergi
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Patent number: RE49882Abstract: Corrosion protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.Type: GrantFiled: June 23, 2022Date of Patent: March 26, 2024Assignee: Vector Corrosion Technologies Ltd.Inventors: George Sergi, Attanayake Mudiyanselage Gamini Seneviratne, David Whitmore