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).

  • Publication number: 20210316365
    Abstract: 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: Application
    Filed: December 18, 2020
    Publication date: October 14, 2021
    Inventors: Reinhard Simon, Jacim Jacimovic, Lorenz Herrmann, Felix Greuter, Elio Perigo
  • Patent number: 10910135
    Abstract: 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: Grant
    Filed: November 28, 2018
    Date of Patent: February 2, 2021
    Assignee: ABB POWER GRIDS SWITZERLAND AG
    Inventors: Chun Li, Jian He, Deli Gao, Maoshan Niu, Ektor Sotiropoulos, Felix Greuter, Jiansheng Chen, Jens Rocks
  • Publication number: 20200402690
    Abstract: 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: Application
    Filed: January 18, 2018
    Publication date: December 24, 2020
    Inventors: Chun Li, Ektor Sotiropoulos, Felix Greuter, JianSheng Chen, Jian He, Liang Song, Weidong Zhou
  • Publication number: 20190371517
    Abstract: 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: Application
    Filed: August 12, 2019
    Publication date: December 5, 2019
    Inventors: Lise Donzel, Rudi Velthuis, Thomas Gradinger, Felix Greuter
  • Publication number: 20190311827
    Abstract: 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: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Inventors: Elio Perigo, Darren Tremelling, Jacim Jacimovic, Nikolaus Zant, Reinhand Simon, Lorenz Herrmann, Felix Greuter
  • Publication number: 20190189310
    Abstract: 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: Application
    Filed: November 28, 2018
    Publication date: June 20, 2019
    Inventors: Chun Li, Jian He, Deli Gao, Maoshan Niu, Ektor Sotiropoulos, Felix Greuter, Jiansheng Chen, Jens Rocks
  • Patent number: 10269479
    Abstract: 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: Grant
    Filed: February 13, 2017
    Date of Patent: April 23, 2019
    Assignee: ABB Schweiz AG
    Inventors: Reinhard Simon, Jacim Jacimovic, Darren Tremelling, Felix Greuter, Erik Johansson, Tomaz Tomse
  • Patent number: 9882373
    Abstract: 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: Grant
    Filed: November 21, 2014
    Date of Patent: January 30, 2018
    Assignee: ABB Schweiz AG
    Inventors: Elisabeth Lindell, Lars Liljestrand, Felix Greuter
  • Patent number: 9824800
    Abstract: 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: Grant
    Filed: November 19, 2015
    Date of Patent: November 21, 2017
    Assignee: ABB Schweiz AG
    Inventors: Bernhard Doser, Peter Dubach, Felix Greuter, Elisabeth Lindell, Lars Liljestrand
  • Patent number: 9672964
    Abstract: 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: Grant
    Filed: September 30, 2010
    Date of Patent: June 6, 2017
    Assignee: ABB SCHWEIZ AG
    Inventors: Felix Greuter, Michael Hagemeister, Oliver Beck, Ragnar Osterlund, Reto Kessler
  • Publication number: 20170154713
    Abstract: 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: Application
    Filed: February 13, 2017
    Publication date: June 1, 2017
    Inventors: Reinhard Simon, Jacim Jacimovic, Darren Tremelling, Felix Greuter, Erik Johansson, Tomaz Tomse
  • Patent number: 9396848
    Abstract: 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: Grant
    Filed: December 15, 2011
    Date of Patent: July 19, 2016
    Assignee: ABB Research Ltd
    Inventors: Dieter Fuechsle, Daniel Neeser, Bernhard Doser, Daniel Müller, Marlene Ljuslinder, Felix Greuter
  • Publication number: 20160148728
    Abstract: 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: Application
    Filed: November 19, 2015
    Publication date: May 26, 2016
    Inventors: Bernhard Doser, Peter Dubach, Felix Greuter, Elisabeth Lindell, Lars Liljestrand
  • Publication number: 20160149396
    Abstract: 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: Application
    Filed: November 21, 2014
    Publication date: May 26, 2016
    Inventors: Elisabeth Lindell, Lars Liljestrand, Felix Greuter
  • Publication number: 20140374382
    Abstract: 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: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Inventors: Rudolf Gati, Arthouros Iordanidis, Felix Greuter, Markus Abplanalp
  • Patent number: 8545977
    Abstract: 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: Grant
    Filed: April 8, 2010
    Date of Patent: October 1, 2013
    Assignee: ABB Research Ltd.
    Inventors: Stephen Clifford, Faustine Soyeux, Andrej Krivda, Vincent Tilliette, Nikolaus Zant, Bandeep Singh, Felix Greuter, Leopold Ritzer
  • Publication number: 20130203897
    Abstract: 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: Application
    Filed: August 3, 2012
    Publication date: August 8, 2013
    Applicant: ABB RESEARCH LTD
    Inventors: Xavier KORNMANN, Lars E. Schmidt, Andrej Krivda, Felix Greuter, Martin Carlen
  • Publication number: 20130021709
    Abstract: A conductor arrangement is provided for reducing very fast transients in high voltage applications. The conductor arrangement includes a conductor element having a main conducting orientation, and a conductive annular shell element coaxial to the conductor element, thus forming an annular cavity around the conductor element. The annular shell element in the main conducting orientation includes a first end portion and a second end portion. The first end portion is conductively connected to the conductor element. The second end portion includes an annular collar which is substantially coaxial to the conductor element, thus together with the conductor element forming a coaxial capacitor which has a solid material filling. The capacitor includes a surge arrester which may serve as an energy conversion portion.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 24, 2013
    Applicant: ABB TECHNOLOGY AG
    Inventors: Jasmin Smajic, Walter Holaus, Martin Seeger, Felix Greuter, Arthouros Iordanidis, Uwe Riechert
  • Publication number: 20120293964
    Abstract: Exemplary embodiments are directed to a power electronic device with an electronic device including a substrate, a metal layer formed on the substrate and a field grading means located along an edge of the metal layer. The field grading means has a non-linear electrical resistivity.
    Type: Application
    Filed: June 18, 2012
    Publication date: November 22, 2012
    Applicant: ABB TECHNOLOGY AG
    Inventors: Felix GREUTER, Jürgen SCHUDERER, Lise DONZEL
  • Publication number: 20120153976
    Abstract: 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: Application
    Filed: December 15, 2011
    Publication date: June 21, 2012
    Applicant: ABB RESEARCH LTD
    Inventors: Dieter Fuechsle, Daniel Neeser, Bernhard Doser, Daniel Müller, Marlene Ljuslinder, Felix Greuter