Patents by Inventor Xavier Kornmann

Xavier Kornmann 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).

  • Patent number: 10250021
    Abstract: A high-voltage DC cable joint including a multi-wall layered construction having individual concentrically arranged layers. The joint includes, from inside to outside, an inner conductive rubber layer, a field grading rubber layer made from a predetermined tailored formulation, an insulating rubber layer and an outer conductive rubber layer. The field grading rubber layer separates and interconnects the conductive rubber layers, and wherein the rubber layers are cross-linked by a by-product-free manufacturing method. The cable joint is preferably made from platinum cured rubbers by moulding process steps. In a preferred embodiment the cable joint is made by injection moulding.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: April 2, 2019
    Assignee: NKT HV Cables GmbH
    Inventors: Patrick Meier, Spiros Tzavalas, Thomas Christen, Alexey Sokolov, Jan Van-Loon, Xavier Kornmann
  • Publication number: 20180006439
    Abstract: A high-voltage DC cable joint including a multi-wall layered construction having individual concentrically arranged layers. The joint includes, from inside to outside, an inner conductive rubber layer, a field grading rubber layer made from a predetermined tailored formulation, an insulating rubber layer and an outer conductive rubber layer. The field grading rubber layer separates and interconnects the conductive rubber layers, and wherein the rubber layers are cross-linked by a by-product-free manufacturing method. The cable joint is preferably made from platinum cured rubbers by moulding process steps. In a preferred embodiment the cable joint is made by injection moulding.
    Type: Application
    Filed: November 17, 2015
    Publication date: January 4, 2018
    Inventors: Patrick MEIER, Spiros TZAVALAS, Thomas CHRISTEN, Alexey SOKOLOV, Jan VAN-LOON, Xavier KORNMANN
  • Patent number: 9764353
    Abstract: A method of producing a layer of a UV-cured silicone rubber composition on a substrate surface, including applying a primer composition to the substrate surface and hardening the primer composition followed by applying a UV-curable silicone rubber composition, and UV-curing the curable silicone rubber composition. At least one UV-sensitive crosslinking catalyst selected from compounds which initiate and promote curing of UV-curable silicone rubber compositions, is added to the silicone primer composition in any desired sequence before, during or after hardening of the silicone primer composition.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: September 19, 2017
    Assignee: ABB Research Ltd.
    Inventors: Jan Van Loon, Marco Schneider, Patrick Meier, Xavier Kornmann
  • Patent number: 9238313
    Abstract: A mold for molding a UV cured article in an inner volume thereof, the mold including a mold wall surrounding the inner volume, the mold including a UV-transparent polymer and UV radiation deflecting particles immersed in or adhered to a surface of the mold wall. Also provided is an apparatus including the mold and a process for molding a UV cured article.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: January 19, 2016
    Assignee: ABB RESEARCH LTD
    Inventors: Marco Schneider, Patrick Meier, Xavier Kornmann
  • Publication number: 20150357804
    Abstract: A tubular electrical insulation device for a cable is arranged for receiving a plurality of electrical conductors segments by insertion. The insulation device is flexible and includes an inner circumferential electrically conductive layer for establishing an electric contact to the electrical conductors once inserted into the tubular electrical insulation device. A high voltage power cable arrangement includes a plurality of elongated electrical conductor segments arranged to be placed alongside one another and in electrical contact to one another to form an inner electrical conductor of a high voltage power cable, and an elongated tubular electrical insulation device arranged to house and surround the inner electrical conductor. A method for providing a flexible insulated high voltage power cable includes the step of assembling a plurality of elongated electrical conductor segments and an electrical insulation device on site to form the cable.
    Type: Application
    Filed: February 7, 2014
    Publication date: December 10, 2015
    Applicant: ABB TECHNOLOGY LTD
    Inventors: Nikolaus ZANT, Jens ROCKS, Chau-Hon HO, Alexandre OUDALOV, Robin GREMAUD, Xavier KORNMANN, Patrik KAUFMANN, Lorenz HERRMANN, Emmanuel LOGAKIS, Marco SCHNEIDER
  • Patent number: 8717732
    Abstract: A high voltage surge arrester, including a varistor element arranged so as to be connected to a high voltage source and to carry a high voltage when being positioned in its operative position, and an electric insulator that encloses and is in contact with the varistor element and forms an outer surface of the apparatus, wherein the electric insulator includes a silicone-based rubber. The silicone based rubber includes particles chosen from the group consisting of Al2O3, BN and ZnO, to such an extent that the thermal conductivity of the silicone-based rubber is equal to or above 0.8 W/mK.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: May 6, 2014
    Assignee: ABB Research Ltd.
    Inventors: Lennart Stenström, Linnea Petersson, Xavier Kornmann, Henrik Hillborg
  • Publication number: 20130288062
    Abstract: A method of producing a layer of a UV-cured silicone rubber composition on a substrate surface, including applying a primer composition to the substrate surface and hardening the primer composition followed by applying a UV-curable silicone rubber composition, and UV-curing the curable silicone rubber composition. At least one UV-sensitive crosslinking catalyst selected from compounds which initiate and promote curing of UV-curable silicone rubber compositions, is added to the silicone primer composition in any desired sequence before, during or after hardening of the silicone primer composition.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 31, 2013
    Inventors: Jan VAN LOON, Marco SCHNEIDER, Patrick MEIER, Xavier KORNMANN
  • 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
  • Patent number: 8399577
    Abstract: A curable epoxy resin composition including at least an epoxy resin component and a hardener component, and optionally further additives, wherein: (a) the epoxy resin component is an epoxy resin compound or a mixture of such compounds; (b) the hardener component includes (b1) an aliphatic and cycloaliphatic or aromatic polycarbonic acid anhydride; and (b2) a polyether-amine of the general formula (I), H2N—(CnH2n—O)m—CnH2n—NH2, wherein n is an integer from 2 to 8; and m is from about 3 to about 100; (c) the polycarbonic acid anhydride [component (b1)] is present in the curable epoxy resin composition in a concentration of 0.60 Mol to 0.93 Mol; and (d) the polyether-amine of the general formula (I) [component (b2)] is present in the curable epoxy resin composition in a concentration of about 0.02 Mol to about 0.1 Mol.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: March 19, 2013
    Assignee: ABB Research Ltd
    Inventors: Bandeep Singh, Stéphane Schaal, Xavier Kornmann, Prateek Puri
  • Publication number: 20120250207
    Abstract: A high voltage surge arrester, including a varistor element arranged so as to be connected to a high voltage source and to carry a high voltage when being positioned in its operative position, and an electric insulator that encloses and is in contact with the varistor element and forms an outer surface of the apparatus, wherein the electric insulator includes a silicone-based rubber. The silicone based rubber includes particles chosen from the group consisting of Al2O3, BN and ZnO, to such an extent that the thermal conductivity of the silicone-based rubber is equal to or above 0.8 W/mK.
    Type: Application
    Filed: June 4, 2012
    Publication date: October 4, 2012
    Inventors: Lennart Stenström, Linnea Petersson, Xavier Kornmann, Henrik Hillborg
  • Publication number: 20120202918
    Abstract: A curable epoxy resin composition including at least an epoxy resin component and a hardener component, and optionally further additives, wherein: (a) the epoxy resin component is an epoxy resin compound or a mixture of such compounds; (b) the hardener component includes (b1) an aliphatic and cycloaliphatic or aromatic polycarbonic acid anhydride; and (b2) a polyether-amine of the general formula (I), H2N—(CnH2n—O)m—CnH2n—NH2, wherein n is an integer from 2 to 8; and m is from about 3 to about 100; (c) the polycarbonic acid anhydride [component (b1)] is present in the curable epoxy resin composition in a concentration of 0.60 Mol to 0.93 Mol; and (d) the polyether-amine of the general formula (I) [component (b2)] is present in the curable epoxy resin composition in a concentration of about 0.02 Mol to about 0.1 Mol.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 9, 2012
    Applicant: ABB RESEARCH LTD
    Inventors: Bandeep SINGH, Stéphane Schaal, Xavier Kornmann, Prateek Puri
  • Publication number: 20120111605
    Abstract: Curable sol-gel composition useful for modifying the surface of a conventional electrical insulation system and providing said surface with an improved tracking and erosion resistance, wherein said sol-gel composition includes: (a) cyclo-aliphatic epoxy resin compound containing at least two 1,2-epoxy groups per molecule [component (a)]; (b) a glycidoxypropane-tri(C1-4)alkoxysilane [component (b)]; (c) a gamma-aminopropyl-tri(C1-4)alkoxysilane [component (c)]; (d) a mineral filler material [component (d)]; and (e) a hydrophobic compound [component (e)] or a mixture of such hydrophobic compounds being selected from fluorinated or chlorinated hydrocarbons or organopolysiloxanes.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 10, 2012
    Applicant: ABB RESEARCH LTD.
    Inventors: Spiros TZAVALAS, Bandeep SINGH, Xavier KORNMANN
  • Patent number: 7981955
    Abstract: Electrical insulation system, which optionally contains a filler material and/or further additives, wherein said electrical insulation system comprises poly(dicyclopentadiene) as the main component, and method of making said electrical insulation system.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: July 19, 2011
    Assignee: ABB Research Ltd
    Inventors: Kurt Kaltenegger, Xavier Kornmann, Jens Rocks, Reto Weder
  • Patent number: 7872091
    Abstract: An electrical insulation system and method are disclosed which are based on poly(butylene terephthalate), wherein the poly(butylene terephthalate) contains a polymerized cyclic low molecular weight oligomeric poly(butylene terephthalate) resin. At least one filler material or a mixture of filler materials can be included. At least one hydrophobic compound or a mixture of hydrophobic compounds can also be included.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: January 18, 2011
    Assignee: ABB Research Ltd
    Inventors: Kurt Kaltenegger, Xavier Kornmann, Jens Rocks, Reto Weder
  • Patent number: 7851525
    Abstract: A high temperature vulcanized silicone rubber is disclosed and includes a high temperature vulcanized silicone rubber as a silicone base and melamine cyanurate as a filler and at least one inorganic filler which is different from melamine cyanurate, and optionally further additives. A total filler content can be within a range of 40 parts (by weight) to 230 parts (by weight) per 100 parts (by weight) of silicone base; wherein (i) the melamine cyanurate is present within a range of 2 parts (by weight) to 40 parts (by weight) per 100 parts (by weight) of silicone base; and (ii) the at least one inorganic filler is an electrical insulator.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: December 14, 2010
    Assignee: ABB Research Ltd
    Inventors: Lars E. Schmidt, Alessandro Mattozzi, Andrej Krivda, Henrik Hillborg, Pitor Saj, Xavier Kornmann
  • Publication number: 20100105815
    Abstract: A high temperature vulcanized silicone rubber is disclosed and includes a high temperature vulcanized silicone rubber as a silicone base and melamine cyanurate as a filler and at least one inorganic filler which is different from melamine cyanurate, and optionally further additives. A total filler content can be within a range of 40 parts (by weight) to 230 parts (by weight) per 100 parts (by weight) of silicone base; wherein (i) the melamine cyanurate is present within a range of 2 parts (by weight) to 40 parts (by weight) per 100 parts (by weight) of silicone base; and (ii) the at least one inorganic filler is an electrical insulator.
    Type: Application
    Filed: January 4, 2010
    Publication date: April 29, 2010
    Applicant: ABB Research Ltd
    Inventors: Lars E. Schmidt, Alessandro Mattozzi, Andrej Krivda, Henrik Hillborg, Pitor Saj, Xavier Kornmann
  • Publication number: 20080233299
    Abstract: Electrical insulation system, which optionally contains a filler material and/or further additives, wherein said electrical insulation system comprises poly(dicyclopentadiene) as the main component, and method of making said electrical insulation system.
    Type: Application
    Filed: May 2, 2008
    Publication date: September 25, 2008
    Applicant: ABB RESEARCH LTD
    Inventors: Kurt KALTENEGGER, Xavier Kornmann, Jens Rocks, Reto Weder
  • Publication number: 20080202793
    Abstract: An electrical insulation system and method are disclosed which are based on poly(butylene terephthalate), wherein the poly(butylene terephthalate) contains a polymerized cyclic low molecular weight oligomeric poly(butylene terephthalate) resin. At least one filler material or a mixture of filler materials can be included. At least one hydrophobic compound or a mixture of hydrophobic compounds can also be included.
    Type: Application
    Filed: April 14, 2008
    Publication date: August 28, 2008
    Applicant: ABB RESEARCH LTD
    Inventors: Kurt Kaltenegger, Xavier Kornmann, Jens Rocks, Reto Weder
  • Publication number: 20080152898
    Abstract: The disclosure relates to a tape with nonlinear field control properties containing ZnO microvaristor particles. The doped ZnO particles are produced by crushing a sintered ZnO block, by desagglomeration or crushing of calcinated granulated particles, or by crushing of a calcined or sintered tape (tape casting). Embodiments, among other things, relate to: hollow ZnO microvaristor particles produced by granulation technique, having reduced average density and having diameters in a range well below 90 ?m; and compounding the Zno filler in binders that are used to impregnate tapes. Compared to nonlinear field control tapes with conventional embedded nonlinear filler particles, a stronger and more reliable nonlinear resistivity is achieved and the ZnO filler is simpler to produce and to compound in the binder. The resulting tapes are flexible, preferably self-adhesive and have a strong nonlinear electrical resistivity. The tapes are useful to protect high field-stress regions in electrical components.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 26, 2008
    Applicant: ABB Research Ltd.
    Inventors: Lise Donzel, Xavier Kornmann, Felix Greuter
  • Publication number: 20080051549
    Abstract: An epoxy resin formulation is disclosed. Such a formulation is suitable for the use as coil insulation material, wherein the formulation includes (a) a purified grade of at least one diglycidyl ether of a bisphenol compound or at least one cycloaliphatic diglycidyl ether compound or a mixture of such compounds, wherein the compounds have an epoxy equivalent weight not exceeding 10% of the minimum epoxy equivalent weight calculated for each compound; and (b) the formation optionally includes up to 50% by weight of a diglycidyl ether of a bisphenol compound or of a cycloaliphatic diglycidyl ether compound or a novolac epoxy or a mixture of such compounds, wherein the compounds have an epoxy equivalent weight exceeding 10% of the minimum epoxy equivalent weight calculated for each compound; and (c) a polymerization catalyst.
    Type: Application
    Filed: July 19, 2007
    Publication date: February 28, 2008
    Applicant: ABB Research LTD
    Inventors: Cherif Ghoul, Xavier Kornmann, Saija Paakkonen, Hans-Ake Eriksson, Osmo Koponen, Stefano Chieregato