Patents by Inventor Stefan Gosmann

Stefan Gosmann 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: 8756969
    Abstract: In a method of making a hardened sheet metal part, a blank is cut to form a region defined by at least one cutting edge having a cutting depth which is smaller than a material thickness of the blank. The blank is subjected to a hot forming step and at least in one area is allowed to harden. After the hot forming step, the region is pushed along the cutting edge.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: June 24, 2014
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Stefan Gosmann, Josef Köster, Oliver Lütkemeier
  • Patent number: 8631675
    Abstract: A method for hot-forming and hardening a sheet-metal component with flanges in a cooled forming tool and an apparatus for carrying out the method are disclosed. A heated sheet-metal blank is inserted in a forming tool having a hollow form, with the sheet-metal blank projecting over the hollow form in marginal regions. The sheet-metal component formed from the sheet-metal blank is hardening of in the hollow form. A first flange having an X-bending axis is formed in a first marginal region with an auxiliary tool, and a second flange having a Y-bending axis is formed in a second marginal region with the auxiliary tool. The auxiliary tool has a plurality of dies, and the X- and Y-bending axes are not collinear and may be orthogonal to each other. Bending axes with a substantially perpendicular mutual orientation can be produced simultaneously in a single forming step.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: January 21, 2014
    Assignee: Benteler Automobiltechnik GmbH
    Inventor: Stefan Gosmann
  • Publication number: 20110296892
    Abstract: A method for hot-forming and hardening a sheet-metal component with flanges in a cooled forming tool and an apparatus for carrying out the method are disclosed. A heated sheet-metal blank is inserted in a forming tool having a hollow form, with the sheet-metal blank projecting over the hollow form in marginal regions. The sheet-metal component formed from the sheet-metal blank is hardening of in the hollow form. A first flange having an X-bending axis is formed in a first marginal region with an auxiliary tool, and a second flange having a Y-bending axis is formed in a second marginal region with the auxiliary tool. The auxiliary tool has a plurality of dies, and the X- and Y-bending axes are not collinear and may be orthogonal to each other. Bending axes with a substantially perpendicular mutual orientation can be produced simultaneously in a single forming step.
    Type: Application
    Filed: December 6, 2010
    Publication date: December 8, 2011
    Applicant: Benteler Automobiltechnik GmbH
    Inventor: STEFAN GOSMANN
  • Publication number: 20100288402
    Abstract: A method and apparatus for making sheet metal components includes heating a sheet of hardenable steel to its austenitizing temperature and hot forming the same in a hot forming tool to define a formed workpiece. The formed workpiece is held in the hot forming tool for a first holding time. The formed workpiece is then removed from the hot forming tool and immediately placed in a cooled, form holding tool and is held therein in a closed condition for a second holding time. The form holding tool may be constructed from a material that has greater heat conductivity than that of the hot forming tool.
    Type: Application
    Filed: April 29, 2010
    Publication date: November 18, 2010
    Inventor: Stefan Gosmann
  • Publication number: 20090101249
    Abstract: In a method of making a hardened sheet metal part, a blank is cut to form a region defined by at least one cutting edge having a cutting depth which is smaller than a material thickness of the blank. The blank is subjected to a hot forming step and at least in one area is allowed to harden. After the hot forming step, the region is pushed along the cutting edge.
    Type: Application
    Filed: October 21, 2008
    Publication date: April 23, 2009
    Applicant: Benteler Automobiltechnik GmbH
    Inventors: STEFAN GOSMANN, Josef Koster, Oliver Lutkemeier
  • Patent number: 7041181
    Abstract: A hardenable steel workpiece having two regions is first hardened so that both regions are of generally the same low ductility. Then only one of the regions is hot coated so as to increase the ductility of the one region while not heating and changing the ductility of the other region. The workpiece can be hardened by hot working or tempering. The hot coating can be done by dipping the one region in molten zinc.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: May 9, 2006
    Assignee: Benteler Automobil Technik GmbH
    Inventor: Stefan Gosmann
  • Publication number: 20040134570
    Abstract: A hardenable steel workpiece having two regions is first hardened so that both regions are of generally the same low ductility. Then only one of the regions is hot coated so as to increase the ductility of the one region while not heating and changing the ductility of the other region. The workpiece can be hardened by hot working or tempering. The hot coating can be done by dipping the one region in molten zinc.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 15, 2004
    Applicant: Benteler Automobiltechnik GmbH
    Inventor: Stefan Gosmann
  • Publication number: 20030163920
    Abstract: In a method of making a structural member for the automobile industry, a blank of boron steel is pre-formed at ambient temperature into an intermediary part of a configuration which substantially corresponds to an end shape of a finished structural member. The intermediary part is then coated with aluminum or an aluminum alloy and exposed to a temperature above the upper transformation line in the TTT curve. Subsequently, the intermediary part is formed in a mold into the finished structural member while being hardened at the same time.
    Type: Application
    Filed: January 28, 2003
    Publication date: September 4, 2003
    Applicant: BENTELER AUTOMOBILTECHNIK GMBH & CO. KG
    Inventors: Ludger Gehringhoff, Patrick Reinhold, Thomas Troster, Stefan Gosmann
  • Publication number: 20030046814
    Abstract: In a method of making a sheet metal article with varying thickness for fabricating a structural part for a motor vehicle, a blank of sheet metal is machined at least on one side along predetermined zones with a geometrically defined cutting tool to provide indentations of reduced thickness. Subsequently, the machined blank is subjected to a cold forming process or hot forming process.
    Type: Application
    Filed: August 2, 2002
    Publication date: March 13, 2003
    Applicant: BENTELER AUTOMOBILTECHNIK GMBH & CO. KG
    Inventors: Hans-Jurgen Knaup, Stefan Gosmann
  • Publication number: 20030025353
    Abstract: The invention refers to a side impact support for incorporation into the door of a motor vehicle, wherein the side impact support has a longitudinal profile with end portion towards the door column, and which is configured asymmetrical with respect to the its center transverse plane MQ and which has a reinforcement in the portion adjacent and corresponding to the sitting position of a passenger, and wherein the cross section of the first portion is increased as compared to a second portion which is adjacent, and wherein the cross section of the profile along most of the length is preferably configured hat shaped.
    Type: Application
    Filed: August 2, 2002
    Publication date: February 6, 2003
    Applicant: BENTELER AUTOMOBIL TECHNIK GMBH & CO. KG
    Inventor: Stefan Gosmann