Patents by Inventor Felix Greuter
Felix Greuter 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: 11557428Abstract: A transformer is provided, which includes a tank having an enclosed volume with an insulating material, the tank including at least one channel extending through the tank, wherein the interior of the at least one channel is separated from the enclosed volume of the tank by a channel wall. A transformer core is provided outside of the enclosed volume, including at least one core leg extending through the tank via the at least one channel. At least one coil is located inside the enclosed volume, the coil being wound about the at least one channel, the tank has an inner wall or outer wall including a weakly-conductive layer, which includes fibers embedded in an impregnating material.Type: GrantFiled: August 12, 2019Date of Patent: January 17, 2023Assignee: Hitachi Energy Switzerland AGInventors: Lise Donzel, Rudi Velthuis, Thomas Gradinger, Felix Greuter
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Patent number: 11380464Abstract: A surge arrestor includes an active part extending along a longitudinal direction of the surge arrester, a first electrode having a first interlocking part, a second electrode resting against a second end of the active part, a flexible insulating housing, and a second interlocking part formed on an inner surface of the flexible insulating housing. The flexible insulating housing includes: a support member mechanically connecting and supporting the assembly of the first electrode, the active part and the second electrode, which has a plurality of supporting elements being arranged parallel to the longitudinal direction of the surge arrester and being arranged laterally at sides of the assembly of the first electrode, the active part and the second electrode, and an insulating expandable part with a plurality of sheds extending outwards, being moulded around the support member and being spaced apart from the assembly.Type: GrantFiled: January 18, 2018Date of Patent: July 5, 2022Assignee: Hitachi Energy Switzerland AGInventors: Chun Li, Ektor Sotiropoulos, Felix Greuter, JianSheng Chen, Jian He, Liang Song, Weidong Zhou
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Patent number: 11315711Abstract: A sintered magnet, the sintered magnet including a core portion, a shell portion arranged at an outer part of the sintered magnet, and a diffusion portion arranged at least partially between the core portion and the shell portion. The shell portion has a coercivity, which is at least 30 kA/m larger than the coercivity of the core portion. In the diffusion portion, the coercivity is not less than the coercivity of the core portion and not larger than the coercivity of the shell portion and the value of the coercivity gradually increases from the core portion towards the shell portion. The thickness of the core portion is not less than 1 mm and the total thickness of the shell portion and the diffusion portion is at least 5 mm.Type: GrantFiled: June 24, 2019Date of Patent: April 26, 2022Assignee: ABB Schweiz AGInventors: Elio Perigo, Darren Tremelling, Jacim Jacimovic, Nikolaus Zant, Reinhard Simon, Lorenz Herrmann, Felix Greuter
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Publication number: 20210316365Abstract: The present disclosure provides a method for producing a magnetic powder and the use of a waste magnetic material for producing isotropic or anisotropic magnets. The method comprises providing a waste magnetic material comprising a waste magnetic chemical composition, analyzing the waste magnetic material to obtain information about the waste magnetic chemical composition thereof, adjusting the waste magnetic chemical composition to a target magnetic chemical composition to obtain an adjusted waste magnetic material, and atomizing the adjusted waste magnetic material to obtain the magnetic powder.Type: ApplicationFiled: December 18, 2020Publication date: October 14, 2021Inventors: Reinhard Simon, Jacim Jacimovic, Lorenz Herrmann, Felix Greuter, Elio Perigo
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Patent number: 10910135Abstract: A surge arrester and a method for manufacturing the surge arrester are disclosed. The surge arrester includes a preassembled active part extending in a longitudinal direction, and a separately produced flexible housing defining a bore in the longitudinal direction and having an opening at an end surface of the flexible housing. The flexible housing is arranged surrounding the active part via the bore and in contact with the active part. The contact causes a deformation of the flexible housing in a circumferential direction, and the deformation generates a pressure applied on the active part along a radial direction.Type: GrantFiled: November 28, 2018Date of Patent: February 2, 2021Assignee: ABB POWER GRIDS SWITZERLAND AGInventors: Chun Li, Jian He, Deli Gao, Maoshan Niu, Ektor Sotiropoulos, Felix Greuter, Jiansheng Chen, Jens Rocks
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Publication number: 20200402690Abstract: A surge arrestor includes an active part extending along a longitudinal direction of the surge arrester, a first electrode having a first interlocking part, a second electrode resting against a second end of the active part, a flexible insulating housing, and a second interlocking part formed on an inner surface of the flexible insulating housing. The flexible insulating housing includes: a support member mechanically connecting and supporting the assembly of the first electrode, the active part and the second electrode, which has a plurality of supporting elements being arranged parallel to the longitudinal direction of the surge arrester and being arranged laterally at sides of the assembly of the first electrode, the active part and the second electrode, and an insulating expandable part with a plurality of sheds extending outwards, being moulded around the support member and being spaced apart from the assembly.Type: ApplicationFiled: January 18, 2018Publication date: December 24, 2020Inventors: Chun Li, Ektor Sotiropoulos, Felix Greuter, JianSheng Chen, Jian He, Liang Song, Weidong Zhou
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Publication number: 20190371517Abstract: A transformer is provided, which includes a tank having an enclosed volume with an insulating material, the tank including at least one channel extending through the tank, wherein the interior of the at least one channel is separated from the enclosed volume of the tank by a channel wall. A transformer core is provided outside of the enclosed volume, including at least one core leg extending through the tank via the at least one channel. At least one coil is located inside the enclosed volume, the coil being wound about the at least one channel, the tank has an inner wall or outer wall including a weakly-conductive layer, which includes fibers embedded in an impregnating material.Type: ApplicationFiled: August 12, 2019Publication date: December 5, 2019Inventors: Lise Donzel, Rudi Velthuis, Thomas Gradinger, Felix Greuter
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Publication number: 20190311827Abstract: A sintered magnet, the sintered magnet including a core portion, a shell portion arranged at an outer part of the sintered magnet, and a diffusion portion arranged at least partially between the core portion and the shell portion. The shell portion has a coercivity, which is at least 30 kA/m larger than the coercivity of the core portion. In the diffusion portion, the coercivity is not less than the coercivity of the core portion and not larger than the coercivity of the shell portion and the value of the coercivity gradually increases from the core portion towards the shell portion. The thickness of the core portion is not less than 1 mm and the total thickness of the shell portion and the diffusion portion is at least 5 mm.Type: ApplicationFiled: June 24, 2019Publication date: October 10, 2019Inventors: Elio Perigo, Darren Tremelling, Jacim Jacimovic, Nikolaus Zant, Reinhand Simon, Lorenz Herrmann, Felix Greuter
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Publication number: 20190189310Abstract: A surge arrester (100) and a method for manufacturing the surge arrester (100), the surge arrester (100) comprises a preassembled active part (110) extending in a longitudinal direction (Y), and a separately produced flexible housing (120) defining a bore (121) in the longitudinal direction (Y) and having an opening at an end surface (126) of the flexible housing (120), the flexible housing (120) is arranged surrounding the active part (110) via the bore (121) and in contact with the active part (110), the contact causes a deformation of the flexible housing (120) in a circumferential direction (C), and the deformation generates a pressure applied on the active part (110) along a radial direction (R).Type: ApplicationFiled: November 28, 2018Publication date: June 20, 2019Inventors: Chun Li, Jian He, Deli Gao, Maoshan Niu, Ektor Sotiropoulos, Felix Greuter, Jiansheng Chen, Jens Rocks
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Patent number: 10269479Abstract: This application concerns a magnet having a magnet body as well as a method for manufacturing such a magnet. The magnet body has a first region with first magnetic properties and a second region with second magnetic properties that are different to the first properties. Owing to the manufacturing process of the magnet body, the relative location of the first region and the second region within the magnet body is freely predeterminable.Type: GrantFiled: February 13, 2017Date of Patent: April 23, 2019Assignee: ABB Schweiz AGInventors: Reinhard Simon, Jacim Jacimovic, Darren Tremelling, Felix Greuter, Erik Johansson, Tomaz Tomse
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Patent number: 9882373Abstract: A system for transient over voltage protection of a three-phase transformer. Two surge arresters are series connected across each winding of the transformer and the center point connection of the two surge arresters is electrically connected to a middle location of the winding. Three additional surge arresters are electrically connected from each phase to ground in the case of either a delta or Y connected transformer; and/or connected from a neutral point to ground in the case of a Y connected transformer. The system allows for all of the surge arresters to be packaged as an integrated surge arrester system to minimize induced transient over voltages and high stresses on the transformer winding due to internal resonances.Type: GrantFiled: November 21, 2014Date of Patent: January 30, 2018Assignee: ABB Schweiz AGInventors: Elisabeth Lindell, Lars Liljestrand, Felix Greuter
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Patent number: 9824800Abstract: A multi-terminal surge arrester which includes an active part extending along a longitudinal direction of the surge arrester, a first electrode resting against a first end of the active part, and a second electrode resting against a second end of the active part, which second end opposes the first end in the longitudinal direction of the surge arrester. The surge arrester further includes an insulating fixing device mechanically connecting and fixing the first electrode and the second electrode, and an insulating housing arranged around the active part. The active part includes at least two metal-oxide based varistor elements and a further electrode arranged between the at least two varistor elements, which further electrode provides an externally accessible electrical connection. Therein, the surge arrester is adapted for being insulated by surrounding air.Type: GrantFiled: November 19, 2015Date of Patent: November 21, 2017Assignee: ABB Schweiz AGInventors: Bernhard Doser, Peter Dubach, Felix Greuter, Elisabeth Lindell, Lars Liljestrand
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Patent number: 9672964Abstract: The present invention relates to a varistor material for a surge arrester with target switching field strength ranging from 250 to 400 V/mm comprising ZnO forming a ZnO phase and Bi expressed as Bi2O3 forming an intergranular bismuth oxide phase, said varistor material further comprising a spinel phase, characterized in that the amount of a pyrochlore phase comprised in the varistor material is such, that the ratio of the pyrochlore phase to the spinel phase is less than 0.15:1.Type: GrantFiled: September 30, 2010Date of Patent: June 6, 2017Assignee: ABB SCHWEIZ AGInventors: Felix Greuter, Michael Hagemeister, Oliver Beck, Ragnar Osterlund, Reto Kessler
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Publication number: 20170154713Abstract: This application concerns a magnet having a magnet body as well as a method for manufacturing such a magnet. The magnet body has a first region with first magnetic properties and a second region with second magnetic properties that are different to the first properties. Owing to the manufacturing process of the magnet body, the relative location of the first region and the second region within the magnet body is freely predeterminable.Type: ApplicationFiled: February 13, 2017Publication date: June 1, 2017Inventors: Reinhard Simon, Jacim Jacimovic, Darren Tremelling, Felix Greuter, Erik Johansson, Tomaz Tomse
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Patent number: 9396848Abstract: Exemplary embodiments are directed to a device with overvoltage protection that includes a varistor which can be connected by a first connection via a first line to high-voltage potential in a circuit arrangement, while a second connection is connected to ground via a second line. Furthermore, an additional impedance is provided, which can be connected between the second connection and ground or the first connection and the high voltage, or is mounted fixed in this position. The corresponding line can be interrupted by a switching arrangement. In order to test the withstand voltage of the circuit arrangement, at least one of the first and second line is interrupted and an additional impedance is inserted. A test voltage is applied to the circuit arrangement. After the overvoltage test, the interruption in at least one of the first and second lines is removed again.Type: GrantFiled: December 15, 2011Date of Patent: July 19, 2016Assignee: ABB Research LtdInventors: Dieter Fuechsle, Daniel Neeser, Bernhard Doser, Daniel Müller, Marlene Ljuslinder, Felix Greuter
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Publication number: 20160148728Abstract: A multi-terminal surge arrester which includes an active part extending along a longitudinal direction of the surge arrester, a first electrode resting against a first end of the active part, and a second electrode resting against a second end of the active part, which second end opposes the first end in the longitudinal direction of the surge arrester. The surge arrester further includes an insulating fixing device mechanically connecting and fixing the first electrode and the second electrode, and an insulating housing arranged around the active part. The active part includes at least two metal-oxide based varistor elements and a further electrode arranged between the at least two varistor elements, which further electrode provides an externally accessible electrical connection. Therein, the surge arrester is adapted for being insulated by surrounding air.Type: ApplicationFiled: November 19, 2015Publication date: May 26, 2016Inventors: Bernhard Doser, Peter Dubach, Felix Greuter, Elisabeth Lindell, Lars Liljestrand
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Publication number: 20160149396Abstract: A system for transient over voltage protection of a three-phase transformer. Two surge arresters are series connected across each winding of the transformer and the center point connection of the two surge arresters is electrically connected to a middle location of the winding. Three additional surge arresters are electrically connected from each phase to ground in the case of either a delta or Y connected transformer; and/or connected from a neutral point to ground in the case of a Y connected transformer. The system allows for all of the surge arresters to be packaged as an integrated surge arrester system to minimize induced transient over voltages and high stresses on the transformer winding due to internal resonances.Type: ApplicationFiled: November 21, 2014Publication date: May 26, 2016Inventors: Elisabeth Lindell, Lars Liljestrand, Felix Greuter
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Publication number: 20140374382Abstract: A circuit breaker for breaking an AC current, including a pair of breaker contact members with a first breaker contact member and a second breaker contact member, wherein the pair of breaker contact members is separable, whereby an arc carrying an arcing current develops between the breaker contact members; an arcing contact member configured for letting an arc root of the arc jump from the second breaker contact member to the arcing contact member, whereby the arcing current is commuted from the second breaker contact member to the arcing contact member, the commuted arcing current having a first direction; and a current-rectifying element electrically connected to the arcing contact member and configured for passing the commuted arcing current having the first direction, and for blocking a current having a second direction opposite to the first direction.Type: ApplicationFiled: September 8, 2014Publication date: December 25, 2014Inventors: Rudolf Gati, Arthouros Iordanidis, Felix Greuter, Markus Abplanalp
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Patent number: 8545977Abstract: Polymer concrete electrical insulation including a hardened epoxy resin composition filled with an electrically non-conductive inorganic filler compositions. The polymer concrete electrical insulation system optionally may contain additives. The epoxy resin composition is based on a cycloaliphatic epoxy resin. The inorganic filler composition can be present within the range of about 76% by weight to about 86% by weight, calculated to the total weight of the polymer concrete electrical insulation system. The inorganic filler composition includes a uniform mixture of (i) an inorganic filler with an average grain size within the range of 1 micron (?m) to 100 micron (?m) [component c(i)], and (ii) an inorganic filler with an average grain size within the range of 0.1 mm (100 micron) to 2 mm [component c(ii)].Type: GrantFiled: April 8, 2010Date of Patent: October 1, 2013Assignee: ABB Research Ltd.Inventors: Stephen Clifford, Faustine Soyeux, Andrej Krivda, Vincent Tilliette, Nikolaus Zant, Bandeep Singh, Felix Greuter, Leopold Ritzer
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Publication number: 20130203897Abstract: Electrical insulation system with improved electrical breakdown strength, including a hardened polymer component having incorporated therein a filler material and a nano-scale sized filler material. The hardened polymer component is selected from epoxy resin compositions, polyesters, polyamides, polybutylene terephthalate, polyurethanes and polydicyclo-pentadiene. The filler material has an average particle size within the range of 1 ?m-500 ?m, and is present in a quantity within the range of 40%-65% by weight, calculated to the total weight of the insulation system. The nano-scale sized filler material is a pretreated nano-scale sized filler material, having been produced by a sol-gel process. The nano-scale sized filler material is present within the electrical insulation system in an amount of about 1%-20% by weight, calculated to the weight of the filler material present in the electrical insulation system.Type: ApplicationFiled: August 3, 2012Publication date: August 8, 2013Applicant: ABB RESEARCH LTDInventors: Xavier KORNMANN, Lars E. Schmidt, Andrej Krivda, Felix Greuter, Martin Carlen