Patents by Inventor Oliver LUETKEMEYER

Oliver LUETKEMEYER 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: 20240123486
    Abstract: A method of making a motor vehicle component by hot-forming, hot-cutting, and press-hardening a plate made of a hardenable steel sheet alloy, heating to a temperature greater than Ac1, inserting in a combined forming and cutting tool, fixing the inserted plate in the forming and cutting tool using a stamp which is arranged in the inner region of the tool, at least partially circumferential edge cutting before beginning the forming operation or during a time period of up to 50% of the forming progression and/or at least 20% of the press stroke prior to the bottom dead center position, and hot-forming in a press stroke with the edge cut and optional press-hardening.
    Type: Application
    Filed: August 9, 2023
    Publication date: April 18, 2024
    Inventors: Oliver LUETKEMEYER, Josef KOESTER
  • Patent number: 11548050
    Abstract: A hot forming tool includes a top tool and a bottom tool, both of which can be moved towards each other. When the hot forming tool is closed, a mold cavity is formed between the top tool and the bottom tool, with the top tool and/or the bottom tool being divided into at least two segments. The hot forming tool has one segment designed as a heating segment. The heating segment includes a compensating element on a side thereof opposite the mold cavity, to compensate for a thermal expansion of the heating segment in the press stroke direction.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: January 10, 2023
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Oliver Luetkemeyer, Matthias Wiemers, Robert Stockter
  • Patent number: 10322443
    Abstract: The present invention relates to a press-forming tool having a top die and a bottom die, which can be moved toward one another, forming a forming cavity between the top die and the bottom die when the press-forming tool is closed, wherein a die clamping plate is arranged on a press ram and/or on a press table, wherein a top die or bottom die, which can be moved relative to the die clamping plate, is supported on said plate while incorporating at least one resilient adjusting element.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: June 18, 2019
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Georg Frost, Oliver Luetkemeyer, Josef Koester
  • Publication number: 20190176203
    Abstract: A hot forming tool includes a top tool and a bottom tool, both of which can be moved towards each other. When the hot forming tool is closed, a mold cavity is formed between the top tool and the bottom tool, with the top tool and/or the bottom tool being divided into at least two segments. The hot forming tool has one segment designed as a heating segment. The heating segment includes a compensating element on a side thereof opposite the mold cavity, to compensate for a thermal expansion of the heating segment in the press stroke direction.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 13, 2019
    Applicant: BENTELER Automobiltechnik GmbH
    Inventors: Oliver LUETKEMEYER, Matthias WIEMERS, Robert STOCKTER
  • Patent number: 10245632
    Abstract: A hot forming tool includes a top tool and a bottom tool, both of which can be moved towards each other. When the hot forming tool is closed, a mold cavity is formed between the top tool and the bottom tool, with the top tool and/or the bottom tool being divided into at least two segments. The hot forming tool has one segment designed as a heating segment. The heating segment includes a compensating element on a side thereof opposite the mold cavity, to compensate for a thermal expansion of the heating segment in the press stroke direction.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: April 2, 2019
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Oliver Luetkemeyer, Matthias Wiemers, Robert Stockter
  • Publication number: 20160228934
    Abstract: A two-blow heating and forming tool for the simultaneous production of two hot-formed and press-hardened motor vehicle components is provided. The tool includes a heating device and a forming device, with at least two contact heating tools and at least two hot-forming and press-hardening tools being arranged next to one another in parallel in a press such that, during a closing movement, two blanks are heated and two heated blanks are hot-formed and press-hardened to form two motor vehicle components. A method for producing hot-formed and press-hardened motor vehicle components using a two-blow heating and forming tool is also provided, the method including producing two mirror-inverted motor vehicle components simultaneously in one press cycle.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 11, 2016
    Applicant: BENTELER Automobiltechnik GmbH
    Inventors: Georg FROST, Max NIESSE, Oliver LUETKEMEYER, Jan LACKMANN, Stefan KONRAD, Ulrich HUSCHEN, Josef KOESTER
  • Publication number: 20160175910
    Abstract: The present invention relates to a hot forming tool (1) comprising a top tool (2) and a bottom tool (3), both of which can be moved towards each other; and, when the hot forming tool (1) is closed, a mold cavity (19) is formed between the top tool (2)and the bottom tool (3), wherein the top tool (2) and/or the bottom tool (3) is/are divided into at least two segments (4, 5, 6, 7, 8, 9), said hot forming tool being characterized in that one segment is designed as a heating segment (6, 9); and said heating segment (6, 9)comprises a compensating element (16) on a side opposite the mold cavity (19), so that a thermal expansion of the heating segment (6, 9) in the press stroke direction (18) is compensate for.
    Type: Application
    Filed: December 22, 2015
    Publication date: June 23, 2016
    Applicant: BENTELER Automobiltechnik GmbH
    Inventors: Oliver Luetkemeyer, Matthias Wiemers
  • Publication number: 20160059296
    Abstract: The present invention relates to a press-forming tool having a top die and a bottom die, which can be moved toward one another, forming a forming cavity between the top die and the bottom die when the press-forming tool is closed, wherein a die clamping plate is arranged on a press ram and/or on a press table, wherein a top die or bottom die, which can be moved relative to the die clamping plate, is supported on said plate while incorporating at least one resilient adjusting element.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 3, 2016
    Inventors: Georg FROST, Oliver LUETKEMEYER, Josef KOESTER