Patents by Inventor Karl Telger

Karl Telger 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: 11970757
    Abstract: A non-oriented electrical steel strip or sheet having the following composition, in percent by weight: 3.2 to 3.4 of Si, 0.85 to 1.1 of Al, 0.07 to 0.18 of Mn, 0.01 to 0.04 of P, 0.0003 to 0.0030 of S, 0.0005 to 0.0020 of N, 0.0010 to 0.0050 of C, 0.0015 to 0.0040 of Ti, 0.01 to 0.008 of Cr, up to 0.05 in total of Nb+Mo+V, balance Fe and unavoidable impurities up to a total amount of 1.0% and having a specific electrical resistance at 50° C. of 0.62 to 0.65??m. Also, a process for the production thereof and the use thereof in iron cores of rotating electric machines, in particular in electric motors, for example in electric vehicles or hybrid vehicles, and generators.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: April 30, 2024
    Assignees: ThyssenKrupp Steel Europe AG, ThyssenKrupp AG
    Inventors: Anton Vidovic, Karl Telger, Olaf Fischer, Nina Maria Winkler
  • Patent number: 11795530
    Abstract: The invention relates to a non-grain-oriented electrical steel strip or sheet, in particular for electrical applications, an electrical component produced from such an electrical steel strip or sheet, a process for producing an electrical steel strip or sheet and the use of such an electrical steel strip or sheet in components for electrical applications.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: October 24, 2023
    Assignees: ThyssenKrupp Steel Europe AG, thyssenkrupp AG
    Inventors: Sebastian Sieron, Philipp Szary, Olaf Fischer, Abdullah Kahveci, Karl Telger
  • Patent number: 11788168
    Abstract: The present disclosure provides a non-grain-oriented electrical steel strip which can be used in electric machines such as electric motors and generators. In examples, the non-grain oriented electrical steel strip can be used as a stator having good magnetic properties and as a rotor having good mechanical properties. A reference heat treatment performed subsequent to an initial final heat treatment makes it possible to obtain improved magnetic properties.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: October 17, 2023
    Assignee: ThyssenKrupp Steel Europe AG
    Inventors: Sebastian Sieron, Philipp Szary, Olaf Fischer, Abdullah Kahveci, Karl Telger
  • Publication number: 20230287544
    Abstract: The invention relates to a non-grain-oriented flat metal product, which inter alia has comparatively high weight proportions of Mn and Cr. The invention also relates to a method of production and to a use.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 14, 2023
    Inventors: Olaf FISCHER, Karl TELGER, Anton VIDOVIC, Nina Maria WINKLER, Julia DAAMEN, Aleksander Matos COSTA
  • Publication number: 20230193413
    Abstract: The present invention relates to a process for producing a non-oriented electrical steel strip, comprising at least the following process steps (A) provision of a hot-rolled, optionally separately heat-treated, non-oriented electrical steel strip, (B) cold rolling of the electrical steel strip from step (A) to a thickness of from 0.5 to 0.8 mm in order to obtain a first cold-rolled strip, (C) intermediate heat treatment of the first cold-rolled strip from step (B) at a temperature of from 700 to 1100° C. in order to obtain an intermediate-heat-treated, first cold-rolled strip, (D) cold rolling of the intermediate-heat-treated, first cold-rolled strip from step (C) to a thickness of from 0.24 to 0.36 mm in order to obtain a second cold-rolled strip and (E) final heat treatment of the second cold-rolled strip from step (D) at a temperature of from 900 to 1100° C. in order to obtain the non-oriented electrical steel strip, a non-oriented electrical steel strip obtained in such a way and the use thereof.
    Type: Application
    Filed: October 15, 2018
    Publication date: June 22, 2023
    Applicants: ThyssenKrupp Steel Europe AG, thyssenkrupp AG
    Inventors: Olaf FISCHER, Karl Telger, Anton VIDOVIC, Nina Maria WINKLER
  • Patent number: 11623431
    Abstract: A composite material, especially for use in a stator stack and/or rotor stack is disclosed. The composite material includes a first and a second electrical steel strip layer and a polymeric layer arranged in between, wherein the polymeric layer consists of a crosslinked acrylate-based copolymer of high molecular weight and has a layer thickness in the range from 3 to 20 ?m.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: April 11, 2023
    Assignees: ThyssenKrupp Steel Europe AG, thyssenkrupp AG
    Inventors: Tobias Lewe, Marco Tietz, Stephan Drewes, Philipp Grunden, Karl Telger, Johann Müller, Abdullah Kahveci
  • Publication number: 20210395866
    Abstract: A non-oriented electrical steel strip or sheet having the following composition, in percent by weight: 3.2 to 3.4 of Si, 0.85 to 1.1 of Al, 0.07 to 0.18 of Mn, 0.01 to 0.04 of P, 0.0003 to 0.0030 of S, 0.0005 to 0.0020 of N, 0.0010 to 0.0050 of C, 0.0015 to 0.0040 of Ti, 0.01 to 0.008 of Cr, up to 0.05 in total of Nb+Mo+V, balance Fe and unavoidable impurities up to a total amount of 1.0% and having a specific electrical resistance at 50° C. of 0.62 to 0.65 ??m. Also, a process for the production thereof and the use thereof in iron cores of rotating electric machines, in particular in electric motors, for example in electric vehicles or hybrid vehicles, and generators.
    Type: Application
    Filed: November 7, 2019
    Publication date: December 23, 2021
    Inventors: Anton Vidovic, Karl Telger, Olaf Fischer, Nina Maria Winkler
  • Patent number: 11041222
    Abstract: The invention relates to a non-oriented electrical steel strip or sheet, in particular for electrical engineering applications, an electrical engineering component produced from such an electrical steel strip or sheet, a process for producing an electrical steel strip or sheet and the use of such an electrical steel strip or sheet in components for electrical engineering applications.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: June 22, 2021
    Assignee: thyssenkrupp AG
    Inventors: Olaf Fischer, Sebastian Sieron, Silke Strauss, Karl Telger, Marco Tietz, Anton Vidovic
  • Publication number: 20210079493
    Abstract: The invention relates to a non-grain-oriented electrical steel strip or sheet, in particular for electrical applications, an electrical component produced from such an electrical steel strip or sheet, a process for producing an electrical steel strip or sheet and the use of such an electrical strip or sheet in components for electrical applications.
    Type: Application
    Filed: January 23, 2019
    Publication date: March 18, 2021
    Applicants: ThyssenKrupp Steel Europe AG, thyssenkrupp AG
    Inventors: Sebastian SIERON, Philipp SZARY, Olaf FISCHER, Abdullah KAHVECI, Karl TELGER
  • Publication number: 20210062307
    Abstract: The invention relates to a non-grain-oriented electrical steel strip or sheet, in particular for electrical applications, an electrical component produced from such an electrical steel strip or sheet, a process for producing an electrical steel strip or sheet and the use of such an electrical steel strip or sheet in components for electrical applications.
    Type: Application
    Filed: January 23, 2019
    Publication date: March 4, 2021
    Applicants: ThyssenKrupp Steel Europe AG, thyssenkrupp AG
    Inventors: Sebastian SIERON, Philipp SZARY, Olaf FISCHER, Abdullah KAHVECI, Karl TELGER
  • Publication number: 20200063229
    Abstract: The invention relates to a non-oriented electrical steel strip or sheet, in particular for electrical engineering applications, an electrical engineering component produced from such an electrical steel strip or sheet, a process for producing an electrical steel strip or sheet and the use of such an electrical steel strip or sheet in components for electrical engineering applications.
    Type: Application
    Filed: May 11, 2018
    Publication date: February 27, 2020
    Applicants: ThyssenKrupp Steel Europe AG, thyssenkrupp AG
    Inventors: Olaf FISCHER, Sebastian SIERON, Silke STRAUSS, Karl TELGER, Marco TIETZ, Anton VIDOVIC
  • Publication number: 20200001572
    Abstract: A composite material, especially for use in a stator stack and/or rotor stack is disclosed. The composite material includes a first and a second electrical steel strip layer and a polymeric layer arranged in between, wherein the polymeric layer consists of a crosslinked acrylate-based copolymer of high molecular weight and has a layer thickness in the range from 3 to 20 ?m.
    Type: Application
    Filed: March 3, 2017
    Publication date: January 2, 2020
    Inventors: Tobias Lewe, Marco Tietz, Stephan Drewes, Philipp Grunden, Karl Telger, Johann Müller, Abdullah Kahveci
  • Patent number: 9637805
    Abstract: A non-grain-oriented electrical steel strip or sheet consisting of a steel which contains, in addition to iron and unavoidable impurities, (in wt. %) Si: 1.0-4.5%, Al: up to 2.0%, Mn: up to 1.0%, C: up to 0.01%, N: up to 0.01%, S: up to 0.012%, Ti: 0.1-0.5% P: 0.1-0.3%, wherein 1.0?% Ti/% P?2.0 applies for the % Ti/% P ratio. The NGO sheet or strip can be manufactured by cold rolling a hot strip of a steel having the previously mentioned composition into a cold strip and subjecting this cold strip to a final annealing process. Different variants of this final annealing process may be used to accentuate the properties of the strip or sheet. The non-grain-oriented electrical steel strip or sheet and components manufactured from such a sheet or strip for electrotechnical applications are characterized by increased strength and good magnetic properties.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: May 2, 2017
    Assignee: ThyssenKrupp Steel Europe AG
    Inventors: Dorothee Dorner, Olaf Fischer, Karl Telger
  • Publication number: 20160203897
    Abstract: Non-grain-oriented electrical steel strips or electrical steel sheets for electrotechnical applications may be produced from a steel that, in addition to iron and unavoidable impurities, contains the following in percent by weight: 2.0-4.5% Si, 0.03-0.3% Zr, up to 2.0% Al, up to 1.0% Mn, up to 0.01% C, up to 0.01% N, up to 0.001% S, up to 0.015% P. Moreover, in some examples, a microstructure of the electrical steel strip or sheet may contain ternary Fe—Si—Zr precipitates. The ternary Fe—Si—Zr precipitates in the microstructure increase the strength of non-grain-oriented electrical steel strips or sheets produced from steel by precipitation or particle hardening without having a significant influence on electromagnetic properties. In addition, example methods for producing such electrical steel strips and electrical steel sheets are disclosed.
    Type: Application
    Filed: July 22, 2014
    Publication date: July 14, 2016
    Applicant: THYSSENKRUPP STEEL EUROPE AG
    Inventors: Dorothée DORNER, Olaf FISCHER, Karl TELGER
  • Publication number: 20140083573
    Abstract: A non-grain-oriented electrical steel strip or sheet consisting of a steel which contains, in addition to iron and unavoidable impurities, (in wt. %) Si: 1.0-4.5-%, Al: up to 2.0-%, Mn: up to 1.0-%, C: up to 0.01-%, N: up to 0.01-%, S: up to 0.012-%, Ti: 0.1-0.5-% P: 0.1-0.3-%, wherein 1.0?% Ti/% P?2.0 applies for the % Ti/% P ratio. The NGO sheet or strip can be manufactured by cold rolling a hot strip of a steel having the previously mentioned composition into a cold strip and subjecting this cold strip to a final annealing process. Different variants of this final annealing process may be used to accentuate the properties of the strip or sheet. The non-grain-oriented electrical steel strip or sheet and components manufactured from such a sheet or strip for electrotechnical applications are characterised by increased strength and good magnetic properties.
    Type: Application
    Filed: December 18, 2012
    Publication date: March 27, 2014
    Inventors: Dorothee Dorner, Olaf Fischer, Karl Telger
  • Patent number: 6582528
    Abstract: Method for producing non-grain-oriented electric sheet comprising: introducing steel input stock as a heated and prerolled slab into finishing rolls at a temperature of ≦1100° C. wherein the reheating temperature (TBR) corresponds to a reheating target temperature (TZBR) determined by the formula: TZBR(° C.)=1195° C.+12.716*(GSi+GAl) wherein TZBR(° C.)=target temperature of the reheated slab GSi=Si content in weight % GAl=Al content in weight % hot rolling to a thickness<3.5 mm at a final rolling temperature (TET)≧770° C. coiling at a temperature (THT) wherein THT(° C.)=154−1.8&agr;t+0.577 TET+111d/d0 wherein d0=reference thickness of the strip=3 mm d=actual thickness of the strip in mm t=time in seconds between the end of hot rolling and coiling &agr;=0.7/sec. to 1.3/sec. cooling factor pickling and cold rolling to a thickness of 0.2-1 mm.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: June 24, 2003
    Assignee: ThyssenKrupp Electrical Steel EBG GmbH
    Inventors: Thomas Böhm, Jürgen Schneider, Karl Telger, Carl-Dieter Wuppermann, Rudolf Kawalla, Karl Ernst Friedrich