Patents by Inventor Eric Domejean
Eric Domejean 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: 20230118434Abstract: An electrical protection device capable of operating without auxiliary electrical power supply includes a control module configured to detect an electrical fault and a switching module, a first circuit including at least two normally-on JFET transistors and a switching member including a first contact. The switching module is configured so that, upon a switchover of the first contact when the current circuits, an electric arc is formed and so that the appearance of the electric arc generates an electrical signal transmitted to at least one of the transistors, the electrical signal driving the switching of the transistor.Type: ApplicationFiled: October 5, 2022Publication date: April 20, 2023Applicant: Schneider Electric Industries SASInventors: Jérôme Brenguier, Eric Domejean
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Patent number: 11133138Abstract: This limiter pole (B) for a multipole DC electrical switch (2) comprises a compartment in which an input terminal and an output terminal for a direct electric current are provided, along with a first electrical contact connected to the input terminal and a second electrical contact connected to the output terminal, third and fourth electrical contacts connected to one another in series, the third and fourth contacts being capable of being moved simultaneously relative to the first and second electrical contacts, respectively, between a closed position, in which the first and third contacts and the second and fourth contacts make contact with one another so as to allow the direct electric current to flow between the input terminal and the output terminal, and an open position, in which said contacts are located away from one another, interrupting the flow of the current between the input terminal and the output terminal.Type: GrantFiled: April 8, 2020Date of Patent: September 28, 2021Assignee: Schneider Electric Industries SASInventors: Eric Domejean, Marc Rival, Daniel Rota, Stéphane Dye
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Publication number: 20200357585Abstract: This limiter pole (B) for a multipole DC electrical switch (2) comprises a compartment in which an input terminal and an output terminal for a direct electric current are provided, along with a first electrical contact connected to the input terminal and a second electrical contact connected to the output terminal, third and fourth electrical contacts connected to one another in series, the third and fourth contacts being capable of being moved simultaneously relative to the first and second electrical contacts, respectively, between a closed position, in which the first and third contacts and the second and fourth contacts make contact with one another so as to allow the direct electric current to flow between the input terminal and the output terminal, and an open position, in which said contacts are located away from one another, interrupting the flow of the current between the input terminal and the output terminal.Type: ApplicationFiled: April 8, 2020Publication date: November 12, 2020Applicant: Schneider Electric Industries SASInventors: Eric DOMEJEAN, Marc RIVAL, Daniel ROTA, Stéphane DYE
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Patent number: 10741350Abstract: An electrical protection unit A including a main conductor and, for each main conductor, a current limiter device connected in series with the main conductor to limit the current when a current or temperature threshold is exceeded, the limiter device including an element made of a material having a positive temperature coefficient, called PTC, and being capable of controlling a device for tripping the mechanism M for opening the contacts of the protection unit D, to cause the opening of the contacts of the unit when the threshold is exceeded leading to a change of state of the element between a low resistance state and a high resistance state. The PTC element includes the trip device, in such a way that this element itself provides the functions of fault current limitation and of tripping the mechanism for opening the contacts.Type: GrantFiled: April 3, 2018Date of Patent: August 11, 2020Assignee: Schneider Electric Industries SASInventors: Michel Rapeaux, Eric Domejean
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Patent number: 10354811Abstract: An electrical circuit breaker with separable electrical contacts includes a fixed electrical contact, a mobile electrical contact, that can be displaced between open and closed positions and including several electrical contact fingers, arranged aligned along a row and that can be displaced relative to the mobile electrical contact, several bearing members, each associated with a contact finger to exert a force on this contact finger in order to displace it. The bearing members associated with the contact fingers situated in lateral end zones of the row exhibit a higher stiffness than the bearing members associated with the contact fingers situated in a central part of the row.Type: GrantFiled: August 4, 2017Date of Patent: July 16, 2019Assignee: SCHNEIDER ELECTRIC INDUSTRIES SASInventors: Marc Rival, Eric Domejean, Min Xu
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Patent number: 10347438Abstract: An arc extinguishing gas filtering device for electrical current switchgear includes a porous central body including longitudinal channels and transverse channels which fluidically connect the longitudinal channels together, the longitudinal channels having a bent form; and a tight outer skin which surrounds the central body and which includes inlet orifices and outlet orifices, each longitudinal channel extending between an inlet orifice and an outlet orifice, the outer skin and the central body forming a rigid part in a single piece produced in a metallic material.Type: GrantFiled: March 29, 2018Date of Patent: July 9, 2019Assignee: SCHNEIDER ELECTRIC INDUSTRIES SASInventors: Vincent Pavageau, Eric Domejean, Marc Rival
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Patent number: 10230188Abstract: An electrical connector including a conduction portion having two terminals intended to be each connected electrically to a connection terminal of an electrical apparatus, the connector further including a dissipation portion of the same material as the conduction portion and having a cellular structure defining a plurality of cells.Type: GrantFiled: October 18, 2016Date of Patent: March 12, 2019Assignee: SCHNEIDER ELECTRIC INDUSTRIES SASInventors: Matthieu Blanchet, Patricia Spezzatti, Christophe Kilindjian, Eric Domejean
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Patent number: 10176945Abstract: A DC electrical circuit breaker includes first and second movable electrical contacts. The circuit breaker includes a magnetic circuit including a magnet and generating a magnetic field able to guide an electrical arc in the direction of a quenching chamber, and having for this purpose curved field lines extending perpendicularly to opposite lateral walls of an electrical arc formation chamber, these field lines converging, in a central region of the arc formation chamber containing the contact zones, toward the quenching chamber while extending parallel to the longitudinal plane.Type: GrantFiled: March 28, 2017Date of Patent: January 8, 2019Assignee: SCHNEIDER ELECTRIC INDUSTRIES SASInventors: Eric Domejean, Loic Rondot, Stephane Dye
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Publication number: 20180366289Abstract: An electrical protection unit A including a main conductor and, for each main conductor, a current limiter device connected in series with the main conductor to limit the current when a current or temperature threshold is exceeded, the limiter device including an element made of a material having a positive temperature coefficient, called PTC, and being capable of controlling a device for tripping the mechanism M for opening the contacts of the protection unit D, to cause the opening of the contacts of the unit when the threshold is exceeded leading to a change of state of the element between a low resistance state and a high resistance state. The PTC element includes the trip device, in such a way that this element itself provides the functions of fault current limitation and of tripping the mechanism for opening the contacts.Type: ApplicationFiled: April 3, 2018Publication date: December 20, 2018Applicant: Schneider Electric Industries SASInventors: Michel RAPEAUX, Eric DOMEJEAN
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Publication number: 20180301292Abstract: An arc extinguishing gas filtering device for electrical current switchgear includes a porous central body including longitudinal channels and transverse channels which fluidically connect the longitudinal channels together, the longitudinal channels having a bent form; and a tight outer skin which surrounds the central body and which includes inlet orifices and outlet orifices, each longitudinal channel extending between an inlet orifice and an outlet orifice, the outer skin and the central body forming a rigid part in a single piece produced in a metallic material.Type: ApplicationFiled: March 29, 2018Publication date: October 18, 2018Applicant: Schneider Electric Industries SASInventors: Vincent Pavageau, Eric Domejean, Marc Rival
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Patent number: 10020144Abstract: A high-voltage multipolar circuit breaker including a first chamber for receiving gases, in communication with a first arc quenching chamber, and including a first aperture for exhausting gases to the exterior of the casing, the aperture being provided with a first downstream filtering device. The circuit breaker furthermore includes at least one second chamber for receiving gases, in communication with at least one second arc quenching chamber of another pole of the circuit breaker, the chamber itself being equipped with a second upstream device for filtering gases, the second chamber for receiving gases including a second aperture for exhausting gases to the exterior of the casing, the chamber being provided with a second downstream filtering device, the first chamber for receiving gases and the second chamber for receiving gases being separated fluidically one from the other by an impermeable wall.Type: GrantFiled: October 18, 2016Date of Patent: July 10, 2018Assignee: SCHNEIDER ELECTRIC INDUSTRIES SASInventors: Marc Rival, Eric Domejean, Jean-Paul Gonnet, Nicolas Chaboud
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Patent number: 10020143Abstract: An electrical apparatus for breaking an electric current includes an electrical arc extinguishing chamber, for extinguishing an electrical arc formed on the separation of electric contacts, provided with an extinguishing gas exhaust orifice and an extinguishing gas filtration system, placed at the output of the exhaust orifice and including a filter and a gas diffusor. The gas diffuser includes, superposed between them, a central layer and two outer layers arranged on either side of the central layer. The central layer is provided with first through holes. Each outer layer is provided with second through holes. The first holes are misaligned relative to the second holes so that each of the second holes emerges on a solid portion of the central layer without any first hole.Type: GrantFiled: March 3, 2017Date of Patent: July 10, 2018Assignee: SCHNEIDER ELECTRIC INDUSTRIES SASInventors: Marc Rival, Eric Domejean, Daniel Rota, Gregoire Brun
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Publication number: 20180075983Abstract: An electrical circuit breaker with separable electrical contacts includes a fixed electrical contact, a mobile electrical contact, that can be displaced between open and closed positions and including several electrical contact fingers, arranged aligned along a row and that can be displaced relative to the mobile electrical contact, several bearing members, each associated with a contact finger to exert a force on this contact finger in order to displace it. The bearing members associated with the contact fingers situated in lateral end zones of the row exhibit a higher stiffness than the bearing members associated with the contact fingers situated in a central part of the row.Type: ApplicationFiled: August 4, 2017Publication date: March 15, 2018Applicant: Schneider Electric Industries SASInventors: Marc RIVAL, Eric DOMEJEAN, Min XU
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Publication number: 20170301490Abstract: A DC electrical circuit breaker includes first and second movable electrical contacts. The circuit breaker includes a magnetic circuit including a magnet and generating a magnetic field able to guide an electrical arc in the direction of a quenching chamber, and having for this purpose curved field lines extending perpendicularly to opposite lateral walls of an electrical arc formation chamber, these field lines converging, in a central region of the arc formation chamber containing the contact zones, toward the quenching chamber while extending parallel to the longitudinal plane.Type: ApplicationFiled: March 28, 2017Publication date: October 19, 2017Applicant: Schneider Electric Industries SASInventors: Eric DOMEJEAN, Loic RONDOT, Stephane DYE
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Publication number: 20170278653Abstract: An electrical apparatus for breaking an electric current includes an electrical arc extinguishing chamber, for extinguishing an electrical arc formed on the separation of electric contacts, provided with an extinguishing gas exhaust orifice and an extinguishing gas filtration system, placed at the output of the exhaust orifice and including a filter and a gas diffusor. The gas diffuser includes, superposed between them, a central layer and two outer layers arranged on either side of the central layer. The central layer is provided with first through holes. Each outer layer is provided with second through holes. The first holes are misaligned relative to the second holes so that each of the second holes emerges on a solid portion of the central layer without any first hole.Type: ApplicationFiled: March 3, 2017Publication date: September 28, 2017Applicant: Schneider Electric Industries SASInventors: Marc RIVAL, Eric DOMEJEAN, Daniel ROTA, Gregoire BRUN
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Publication number: 20170169972Abstract: A high-voltage multipolar circuit breaker including a first chamber for receiving gases, in communication with a first arc quenching chamber, and including a first aperture for exhausting gases to the exterior of the casing, the aperture being provided with a first downstream filtering device. The circuit breaker furthermore includes at least one second chamber for receiving gases, in communication with at least one second arc quenching chamber of another pole of the circuit breaker, the chamber itself being equipped with a second upstream device for filtering gases, the second chamber for receiving gases including a second aperture for exhausting gases to the exterior of the casing, the chamber being provided with a second downstream filtering device, the first chamber for receiving gases and the second chamber for receiving gases being separated fluidically one from the other by an impermeable wall.Type: ApplicationFiled: October 18, 2016Publication date: June 15, 2017Applicant: Schneider Electric Industries SASInventors: Marc RIVAL, Eric DOMEJEAN, Jean-Paul GONNET, Nicolas CHABOUD
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Publication number: 20170162968Abstract: An electrical connector including a conduction portion having two terminals intended to be each connected electrically to a connection terminal of an electrical apparatus, the connector further including a dissipation portion of the same material as the conduction portion and having a cellular structure defining a plurality of cells.Type: ApplicationFiled: October 18, 2016Publication date: June 8, 2017Applicant: SCHNEIDER ELECTRIC INDUSTRIES SASInventors: Matthieu BLANCHET, Patricia Spezzatti, Christophe Kilindjian, Eric Domejean
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Patent number: 9515478Abstract: A protection system configured to protect plural DC voltage sources configured to be connected in parallel between first and second input terminals of a voltage inverter. The voltage inverter can convert a DC input voltage into an AC output voltage. Each DC voltage source is connected by a first electrical conductor to the first input terminal and by a second electrical conductor to the second input terminal. The protection system includes: for each DC voltage source, a first cut-off member and first detector of a defect of isolation of the first conductor with respect to an electrical ground, the first detector and associated first cut-off member connected in series between the corresponding DC voltage source and the first input terminal of the inverter; and a mechanism triggering, in event of detection of the isolation defect, the associated first cut-off member to open the electrical link corresponding to the first conductor.Type: GrantFiled: October 17, 2013Date of Patent: December 6, 2016Assignee: SCHNEIDER ELECTRIC INDUSTRIES SASInventors: Jiri Stepanek, Simon Tian, Eric Domejean, Yvan Cadoux
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Publication number: 20150288167Abstract: A protection system configured to protect plural DC voltage sources configured to be connected in parallel between first and second input terminals of a voltage inverter. The voltage inverter can convert a DC input voltage into an AC output voltage. Each DC voltage source is connected by a first electrical conductor to the first input terminal and by a second electrical conductor to the second input terminal. The protection system includes: for each DC voltage source, a first cut-off member and first detector of a defect of isolation of the first conductor with respect to an electrical ground, the first detector and associated first cut-off member connected in series between the corresponding DC voltage source and the first input terminal of the inverter; and a mechanism triggering, in event of detection of the isolation defect, the associated first cut-off member to open the electrical link corresponding to the first conductor.Type: ApplicationFiled: October 17, 2013Publication date: October 8, 2015Applicant: SCHNEIDER ELECTRIC INDUSTRIES SASInventors: Jiri Stepanek, Simon Tian, Eric Domejean, Yvan Cadoux
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Patent number: 8742278Abstract: A switchgear device, for breaking a bidirectional direct current in an electric line, having at least two connection terminals, and an even number of pairs of separable contacts, arc chutes associated with pairs of separable contacts, and tripping mechanisms associated with pairs of separable contacts and connected to one another by a mechanical link, each arc chute having an arc extinguishing chamber and permanent magnets for creating a polarity enabling an electric arc to be removed to an arc extinguishing chamber when current is flowing in the electric line in a predefined direction, the predefined direction being different for one half of the arc chutes.Type: GrantFiled: November 12, 2009Date of Patent: June 3, 2014Assignee: Schneider Electric Industries SASInventors: Eric Domejean, Serge Paggi