Patents by Inventor Igor Ritberg

Igor Ritberg 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: 20210035705
    Abstract: Various embodiments include a sprayable formulation for an insulation system of an electrical machine, the formulation comprising a sprayable resin mixture including: a monomeric and/or oligomeric, at least diepoxidic carbon-based first resin component; and a monomeric and/or oligomeric second resin component based on alkyl-/arylpolysiloxane with at least one glycidyl ester and/or glycidyl ether functionalities; and a curing agent and based on at least one of: anhydride, (poly)amine, and amino- and/or alkoxy-functional alkyl-/arylpolysiloxane.
    Type: Application
    Filed: February 7, 2019
    Publication date: February 4, 2021
    Applicant: Siemens Aktiengesellschaft
    Inventors: Jürgen Huber, Steffen Lang, Niels Müller, Igor Ritberg, Matthias Übler
  • Publication number: 20200403475
    Abstract: Various embodiments include a sprayable formulation for production of a multilayer insulation for an electrical machine, especially a rotating electrical machine in the high-voltage or mid-voltage sector, for example a generator, transformer, which is subjected to higher rated voltages at operating voltages, i.e., for example, over and above 1 kV or more. The invention also relates to an electrical machine comprising such an insulation; the invention finally relates to a method of producing the multilayer insulation. This comprises spraying of various formulations with or without intermediate, especially metallic, interfaces and is automatable.
    Type: Application
    Filed: February 7, 2019
    Publication date: December 24, 2020
    Applicant: Siemens Aktiengesellschaft
    Inventors: Jürgen Huber, Steffen Lang, Niels Müller, Igor Ritberg, Matthias Übler
  • Patent number: 9984796
    Abstract: An insulating system having improved partial discharge resistance includes an insulating tape around a conductor. The tape is a mica tape joined to a carrier. The tape is impregnated with a synthetic resin, and is interspersed with a nanoparticulate filler, present bimodally, in the form of two fractions of the filler differing in particle size and fraction size. An adhesion promoter may be in the resin.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: May 29, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Peter Gröppel, Dieter Heinl, Christian Meichsner, Igor Ritberg
  • Patent number: 9589699
    Abstract: Disclosed are insulating electric conductors against partial discharge and a method for producing an insulation system having improved partial discharge resistance and such an insulation system. There is an erosion-inhibiting effect of adhesion promoters, such as organic silicon compounds, added to resin when admixing nano particulate fillers. Good results may be attributable to a type of particle wetting of the nano particles as a result of particle wetting with organosilanes. The admixture of adhesion promoters with the resin before the addition of the nano particulate filler provides considerable advantages.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: March 7, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Peter Gröppel, Dieter Heinl, Christian Meichsner, Igor Ritberg
  • Publication number: 20150101845
    Abstract: An insulating system having improved partial discharge resistance includes an insulating tape around a conductor. The tape is a mica tape joined to a carrier. The tape is impregnated with a synthetic resin, and is interspersed with a nanoparticulate filler, present bimodally, in the form of two fractions of the filler differing in particle size and fraction size. An adhesion promoter may be in the resin.
    Type: Application
    Filed: September 3, 2012
    Publication date: April 16, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Peter Gröppel, Dieter Heinl, Christian Meichsner, Igor Ritberg
  • Publication number: 20140326481
    Abstract: Disclosed are insulating electric conductors against partial discharge and a method for producing an insulation system having improved partial discharge resistance and such an insulation system. There is an erosion-inhibiting effect of adhesion promoters, such as organic silicon compounds, added to resin when admixing nano particulate fillers. Good results may be attributable to a type of particle wetting of the nano particles as a result of particle wetting with organosilanes. The admixture of adhesion promoters with the resin before the addition of the nano particulate filler provides considerable advantages.
    Type: Application
    Filed: September 3, 2012
    Publication date: November 6, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Peter Gröppel, Dieter Heinl, Christian Meichsner, Igor Ritberg
  • Publication number: 20140138008
    Abstract: A method for producing tape for an electrical insulation system, including the following steps: providing a porous insulation paper; providing a resin that has nano-scale particles suspended therein; saturating the insulation paper with the resin such that the resin and particles become dispersed in the insulation paper; and finishing the tape.
    Type: Application
    Filed: July 18, 2012
    Publication date: May 22, 2014
    Applicants: VOITH PATENT GMBH, SIEMENS AKTIENGESELLSCHAFT
    Inventors: Peter Gröppel, Thomas Hildinger, Igor Ritberg
  • Publication number: 20130131218
    Abstract: A mica-based insulation based on impregnating resin for rotating electrical machines is provided. The mica-based impregnating resin includes an epoxy resin/anhydride mixture and a nanoparticulate filler, wherein the nanoparticulate filler is a nanoparticulate silicon dioxide and/or aluminum oxide modified by a silanizing reagent. Further, a method of producing the mica-based impregnating resin is provided.
    Type: Application
    Filed: June 30, 2011
    Publication date: May 23, 2013
    Inventors: Peter Gröppel, Christian Meichsner, Igor Ritberg