Patents by Inventor Gerhard Lengauer

Gerhard Lengauer 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).

  • Method and device for hardening profiles
    Patent number: 9080222
    Abstract: The invention relates to a method for producing hardened profiles, in particular hardened open profiles, wherein the component is at least partly heated to above the austenitizing temperature of the base material and after heating the component is cooled at a rate above the critical hardening rate, the energy necessary for the heating being introduced at least partly by induction, wherein free edges are provided in the component to adjust a temperature or hardness gradient over the cross section of the component, the size, type and extension of the edges being set for a desired degree of hardness and/or hardness gradient.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: July 14, 2015
    Assignee: VOESTALPINE KREMS GMBH
    Inventors: Gerhard Lengauer, Andreas Schieder, Alfred Habacht, Wolfgang Buhl, Franz Weitz, Andreas Kreuzhuber, Bernhard Lagler, Werner Brandstätter
  • Process for producing shaped components from high-strength and ultra high-strength steels
    Patent number: 8590353
    Abstract: This invention pertains to a process for producing shaped components from high-strength and ultra high-strength steels with tensile strengths >780 MPa, wherein a steel sheet-metal strip is fed to a roll-forming installation and in the roll-forming installation is passed through roll stands and deformed by means of deformation rollers acting on the steel sheet, and wherein to avoid hydrogen embrittlement in plastically deformed regions of the deformed steel sheet-metal strip compressive stresses are introduced by stamping and/or upset-forging and/or overbending and bending-back or by machining the strip edges.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: November 26, 2013
    Assignee: voestalpine Krems GmbH
    Inventors: Gerhard Lengauer, Robert Wurzer, Christoph Bauernberger, Franz Weitz, Christoph Dockner, Kenichi Watanabe, Yasuhiro Hayashida, Masayoshi Okumura, Hiroki Nakayama
  • METHOD AND DEVICE FOR HARDENING PROFILES
    Publication number: 20110011499
    Abstract: The invention relates to a method for producing hardened profiles, in particular hardened open profiles, wherein the component is at least partly heated to above the austenitizing temperature of the base material and after heating the component is cooled at a rate above the critical hardening rate, the energy necessary for the heating being introduced at least partly by induction, wherein free edges are provided in the component to adjust a temperature or hardness gradient over the cross section of the component, the size, type and extension of the edges being set for a desired degree of hardness and/or hardness gradient.
    Type: Application
    Filed: July 28, 2008
    Publication date: January 20, 2011
    Applicant: VOESTALPINE KREMS GMBH
    Inventors: Gerhard Lengauer, Andreas Schieder, Alfred Habacht, Wolfgang Buhl, Franz Weitz, Andreas Kreuzhuber, Bernhard Lagler, Werner Brandstätter
  • PROCESS FOR PRODUCING SHAPED COMPONENTS FROM HIGH-STRENGTH AND ULTRA HIGH-STRENGTH STEELS
    Publication number: 20110003113
    Abstract: This invention pertains to a process for producing shaped components from high-strength and ultra high-strength steels with tensile strengths >780 MPa, wherein a steel sheet-metal strip is fed to a roll-forming installation and in the roll-forming installation is passed through roll stands and deformed by means of deformation rollers acting on the steel sheet, and wherein to avoid hydrogen embrittlement in plastically deformed regions of the deformed steel sheet-metal strip compressive stresses are introduced by stamping and/or upset-forging and/or overbending and bending-back or by machining the strip edges.
    Type: Application
    Filed: December 4, 2008
    Publication date: January 6, 2011
    Applicants: VOESTALPINE KREMS GMBH, KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Gerhard Lengauer, Robert Wurzer, Christoph Bauernberger, Franz Weitz, Christoph Dockner, Kenichi Watanabe, Yasuhiro Hayashida, Masayoshi Okumura, Hiroki Nakayama