Patents by Inventor Stéphane Claeys
Stéphane Claeys 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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Patent number: 11119125Abstract: Closed loop current transducer includes a fluxgate sensing unit, a compensation coil wound around the fluxgate sensing unit, and a transducer housing mounted around the compensation coil, the fluxgate sensing unit comprising a fluxgate housing, a ring-shaped fluxgate magnetic field detector mounted in the fluxgate housing, and a magnetic shield mounted in the fluxgate housing, the magnetic shield surrounding the fluxgate magnetic field detector. The fluxgate housing includes first and second central parts, each central part comprising a radially inner side wall, a radially outer side wall and a base wall joining the inner side wall to the outer side wall, a sensor housing portion being formed on one side of the base wall and receiving the fluxgate magnetic field detector therein.Type: GrantFiled: December 5, 2018Date of Patent: September 14, 2021Assignee: LEM International SAInventor: Stéphane Claeys
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Publication number: 20200379017Abstract: Closed loop current transducer includes a fluxgate sensing unit, a compensation coil wound around the fluxgate sensing unit, and a transducer housing mounted around the compensation coil, the fluxgate sensing unit comprising a fluxgate housing, a ring-shaped fluxgate magnetic field detector mounted in the fluxgate housing, and a magnetic shield mounted in the fluxgate housing, the magnetic shield surrounding the fluxgate magnetic field detector. The fluxgate housing includes first and second central parts, each central part comprising a radially inner side wall, a radially outer side wall and a base wall joining the inner side wall to the outer side wall, a sensor housing portion being formed on one side of the base wall and receiving the fluxgate magnetic field detector therein.Type: ApplicationFiled: December 5, 2018Publication date: December 3, 2020Applicant: LEM International SAInventor: Stéphane Claeys
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Patent number: 9846179Abstract: Electrical current transducer to measure the current flowing in a primary conductor, the transducer including an outer casing, a magnetic core comprising a magnetic circuit gap, a magnetic field detector comprising a sensing portion positioned in the magnetic circuit gap, an insulating core housing, a secondary coil formed from a wire wound around a coil support portion of the insulating core housing, and an electrostatic shield. The electrostatic shield is positioned between secondary coil and a radially inner wall portion of the outer casing, the radially inner wall portion defining a passage configured to receive said primary conductor therethrough. The electrostatic shield comprises a skirt portion formed by a plurality of flexible strips extending axially from an edge of the shield, the flexible strips configured to elastically bias against a base wall portion of the outer casing.Type: GrantFiled: November 3, 2015Date of Patent: December 19, 2017Assignee: LEM Intellectual Property SAInventor: Stéphane Claeys
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Patent number: 9841441Abstract: Electrical current transducer including a magnetic core comprising a magnetic circuit gap, a magnetic field detector comprising a sensing portion positioned in the magnetic circuit gap, an insulating support body comprising a coil support portion and a coil terminal connection portion, and a secondary coil formed from a wire wound around the coil support portion. The coil support portion has a generally U-shaped cross-sectional profile comprising a base wall, a radially inner wall extending from the base wall and a radially outer wall extending from the base wall, the radially inner and outer walls having a height configured such that open end edges thereof extend slightly beyond an axial thickness of the magnetic core including any manufacturing tolerances such that the open end edges are folded inwards around corners of the magnetic core by the coil wound around the magnetic core housing.Type: GrantFiled: November 3, 2015Date of Patent: December 12, 2017Assignee: LEM Intellectual Property SAInventor: Stéphane Claeys
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Patent number: 9494619Abstract: A closed-loop current transducer comprising a magnetic circuit, a magnetic field detector, and a compensation coil assembly configured to generate a magnetic field opposing a magnetic field created by an electrical current to be measured flowing in one or more primary conductors extending through a central opening of the magnetic circuit. The magnetic circuit comprises a first branch, a second branch, and first and second end branches, interconnecting the first and second branches such that the branches surround a central passage through which the one or more primary conductors may extend, the second branch forming a receptacle that defines a cavity extending in an axial direction A for receiving a sensing portion of the magnetic field detector, the second branch comprising two second branch portions separated by an interface resulting from the bringing together of opposed ends of a single piece magnetic circuit.Type: GrantFiled: October 24, 2012Date of Patent: November 15, 2016Assignee: LEM Intellectual Property SAInventors: Wolfram Teppan, Stéphane Claeys
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Publication number: 20160154027Abstract: Electrical current transducer including a magnetic core comprising a magnetic circuit gap, a magnetic field detector comprising a sensing portion positioned in the magnetic circuit gap, an insulating support body comprising a coil support portion and a coil terminal connection portion, and a secondary coil formed from a wire wound around the coil support portion. The coil support portion has a generally U-shaped cross-sectional profile comprising a base wall, a radially inner wall extending from the base wall and a radially outer wall extending from the base wall, the radially inner and outer walls having a height configured such that open end edges thereof extend slightly beyond an axial thickness of the magnetic core including any manufacturing tolerances such that the open end edges are folded inwards around corners of the magnetic core by the coil wound around the magnetic core housing.Type: ApplicationFiled: November 3, 2015Publication date: June 2, 2016Applicant: LEM Intellectual Property SAInventor: Stéphane CLAEYS
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Publication number: 20160154026Abstract: Electrical current transducer to measure the current flowing in a primary conductor, the transducer including an outer casing, a magnetic core comprising a magnetic circuit gap, a magnetic field detector comprising a sensing portion positioned in the magnetic circuit gap, an insulating core housing, a secondary coil formed from a wire wound around a coil support portion of the insulating core housing, and an electrostatic shield. The electrostatic shield is positioned between secondary coil and a radially inner wall portion of the outer casing, the radially inner wall portion defining a passage configured to receive said primary conductor therethrough. The electrostatic shield comprises a skirt portion formed by a plurality of flexible strips extending axially from an edge of the shield, the flexible strips configured to elastically bias against a base wall portion of the outer casing.Type: ApplicationFiled: November 3, 2015Publication date: June 2, 2016Applicant: LEM Intellectual Property SAInventor: Stéphane CLAEYS
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Publication number: 20140300350Abstract: A closed-loop current transducer comprising a magnetic circuit, a magnetic field detector, and a compensation coil assembly configured to generate a magnetic field opposing a magnetic field created by an electrical current to be measured flowing in one or more primary conductors extending through a central opening of the magnetic circuit. The magnetic circuit comprises a first branch, a second branch, and first and second end branches, interconnecting the first and second branches such that the branches surround a central passage through which the one or more primary conductors may extend, the second branch forming a receptacle that defines a cavity extending in an axial direction A for receiving a sensing portion of the magnetic field detector, the second branch comprising two second branch portions separated by an interface resulting from the bringing together of opposed ends of a single piece magnetic circuit.Type: ApplicationFiled: October 24, 2012Publication date: October 9, 2014Inventors: Wolfram Teppan, Stéphane Claeys
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Patent number: D815595Type: GrantFiled: June 17, 2015Date of Patent: April 17, 2018Assignee: LEM INTELLECTUAL PROPERTY SAInventor: Stéphane Claeys
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Patent number: D828298Type: GrantFiled: November 21, 2017Date of Patent: September 11, 2018Assignee: LEM INTELLECTUAL PROPERTY SAInventor: Stephane Claeys
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Patent number: D833391Type: GrantFiled: November 21, 2017Date of Patent: November 13, 2018Assignee: LEM INTELLECTUAL PROPERTY SAInventor: Stephane Claeys
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Patent number: D847742Type: GrantFiled: September 1, 2017Date of Patent: May 7, 2019Inventor: Stéphane Claeys
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Patent number: D847743Type: GrantFiled: September 29, 2017Date of Patent: May 7, 2019Inventor: Stéphane Claeys
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Patent number: D867288Type: GrantFiled: January 5, 2018Date of Patent: November 19, 2019Inventor: Stéphane Claeys