Patents by Inventor Hans-Jurgen KNAUP

Hans-Jurgen KNAUP 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: 9248490
    Abstract: In a method of making a tubular structural part for a motor vehicle, a metal plate is contoured and preformed in at least one shaping step into a tubular body. Subsequently, the tubular body is end-formed into the structural part by internal high-pressure application while free contact regions snugly bear upon one another. The structural part is at least partially heated and quenched in a holding tool acted upon with a coolant.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: February 2, 2016
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Holger Diersmann, Hans-Jürgen Knaup, Rafael Garcia Gómez
  • Publication number: 20130020834
    Abstract: In a method of making a tubular structural part for a motor vehicle, a metal plate is contoured and preformed in at least one shaping step into a tubular body. Subsequently, the tubular body is end-formed into the structural part by internal high-pressure application while free contact regions snugly bear upon one another. The structural part is at least partially heated and quenched in a holding tool acted upon with a coolant.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 24, 2013
    Applicant: Benteler Automobiltechnik GmbH
    Inventors: Holger Diersmann, Hans-Jürgen Knaup, Rafael Garcia Gómez
  • Patent number: 8312629
    Abstract: In a method of making a tubular support bar for a dashboard support, a sheet metal blank is placed in a first forming tool and pressed in a first shaping step by a ram into a U-shaped cavity of a first bottom die to form a U-shaped member. While remaining in the first bottom die, the U-shaped member is provided with connecting elements in the form of weld nuts by a automated placement device. Subsequently, the U-shaped member is transferred to a second forming tool and undergoes a second shaping step between a top die and a second bottom die to form a slotted tube. The longitudinal edges of the slotted tube are then joined together to form the support bar.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: November 20, 2012
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Andreas Hitz, Hans-Jürgen Knaup
  • Patent number: 7748743
    Abstract: In a method of making a structural or chassis component for a motor vehicle, a blank is provided with at least one material supply in an outer region at a distance to the outer edge to serve as material reserve. The blank is placed in a press tool for shaping the blank into a structural or chassis component by displacing the material supply in a direction of the outer edge and pressing the outer region of the blank against a buttress of the press tool to thereby form the outer region in a recess of the press tool to produce bead.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: July 6, 2010
    Assignee: Benteler Automobiltechnik GmbH
    Inventor: Hans-Jürgen Knaup
  • Patent number: 7654124
    Abstract: In a method of making a sheet metal part for motor vehicles, a blank is placed with its opposite length sides between outer lower forming jaws of a die. The blank is then clamped by moving the outer lower forming jaws toward one another. Outer upper forming jaws are then moved to their closed position so that the length sides of the blank are secured in place between the lower and upper forming jaws. The lower and upper forming jaws and a press tool are then moved toward one another, and the blank is shaped to its final configuration to produce a sheet metal part.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: February 2, 2010
    Assignee: Benteler Automobiltechnik GmbH
    Inventor: Hans-Jürgen Knaup
  • Publication number: 20090266135
    Abstract: A method of producing a flat sheet metal blank which varies in thickness. The sheet metal blank is produced for manufacturing components for motor vehicles. The method comprises the steps of providing a flat sheet metal blank having a variable thickness and prefabricated as a starting workpiece, and reworking the prefabricated flat sheet metal blank such that the variable thickness of the prefabricated flat sheet metal blank is locally changed.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 29, 2009
    Applicant: BENTELER AUTOMOBILTECHNIK GMBH
    Inventor: Hans-Jurgen KNAUP
  • Patent number: 7533553
    Abstract: A method of hot-shaping and hardening a hot steel workpiece that is at or above its AC3 temperature.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: May 19, 2009
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Hans-Jürgen Knaup, Christian Hielscher
  • Patent number: 7513137
    Abstract: A shaped part is made by forming in a flat steel plate a thickness-reducing groove and hot-shaping and hardening the flat steel plate into a three-dimensional shape. Then the plate formed with the groove is cooled, and a piece is sheared off the cooled plate along a cut line in the groove.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: April 7, 2009
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Dirk Kröger, Hans-Jürgen Knaup
  • Publication number: 20090038156
    Abstract: In a method of making a tubular support bar for a dashboard support, a sheet metal blank is placed in a first forming tool and pressed in a first shaping step by a ram into a U-shaped cavity of a first bottom die to form a U-shaped member. While remaining in the first bottom die, the U-shaped member is provided with connecting elements in the form of weld nuts by a automated placement device. Subsequently, the U-shaped member is transferred to a second forming tool and undergoes a second shaping step between a top die and a second bottom die to form a slotted tube. The longitudinal edges of the slotted tube are then joined together to form the support bar.
    Type: Application
    Filed: July 7, 2008
    Publication date: February 12, 2009
    Applicant: Benteler Automobiltechnik GmbH
    Inventors: ANDREAS HITZ, Hans-Jurgen Knaup
  • Patent number: 7448247
    Abstract: In a deep drawing method, a sheet metal blank is positioned between two dies of a deep drawing machine and then shaped into a hollow article, whereby the dies, at least during a partial stroke phase, undergo a controlled non-rectilinear relative movement and one of the dies is shifted by a transverse displacement mechanism in a direction transversely to a stroke direction.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: November 11, 2008
    Assignee: Benteler Automobiltechnik GmbH
    Inventor: Hans-Jürgen Knaup
  • Publication number: 20080053184
    Abstract: In a method of making a sheet metal part for motor vehicles, a blank is placed with its opposite length sides between outer lower forming jaws of a die. The blank is then clamped by moving the outer lower forming jaws toward one another. Outer upper forming jaws are then moved to their closed position so that the length sides of the blank are secured in place between the lower and upper forming jaws. The lower and upper forming jaws and a press tool are then moved toward one another, and the blank is shaped to its final configuration to produce a sheet metal part.
    Type: Application
    Filed: July 31, 2007
    Publication date: March 6, 2008
    Applicant: Benteler Automobiltechnik GmbH
    Inventor: HANS-JURGEN KNAUP
  • Publication number: 20070235113
    Abstract: A method of making a shaped and hardened steel part has the steps of sequentially heating a steel plate entirely above the AC3 temperature, cooling specific regions of the heated plate without hardening the specific regions, and then engaging the heated plate with the cooled regions in a cool deforming tool with the specific regions out of contact with the deforming tool. This cools the plate where it contacts the tool and deforms the plate with the tool at the specific regions and both cooling and hardening the plate by contact with the tool.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 11, 2007
    Inventor: Hans-Jurgen Knaup
  • Publication number: 20070187371
    Abstract: A structural component for a motor vehicle, such as a center pillar or bumper cross member, includes comprising a plurality of metal sheets joined together by welding spots. At least one of the metal sheets is provided with relief zones in an area between the welding spots, with the relief zones being formed by recesses in the metal sheet.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 16, 2007
    Applicant: Benteler Automobiltechnik GmbH
    Inventor: Hans-Jurgen Knaup
  • Publication number: 20070180697
    Abstract: In a method of making a structural or chassis component for a motor vehicle, a blank is provided with at least one material supply in an outer region at a distance to the outer edge to serve as material reserve. The blank is placed in a press tool for shaping the blank into a structural or chassis component by displacing the material supply in a direction of the outer edge and pressing the outer region of the blank against a buttress of the press tool to thereby form the outer region in a recess of the press tool to produce bead.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 9, 2007
    Applicant: Benteler Automobiltechnik GmbH
    Inventor: Hans-Jurgen Knaup
  • Publication number: 20070107203
    Abstract: A shaped part is made by forming in a flat steel plate a thickness-reducing groove and hot-shaping and hardening the flat steel plate into a three-dimensional shape. Then the plate formed with the groove is cooled, and a piece is sheared off the cooled plate along a cut line in the groove.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 17, 2007
    Inventors: Dirk Kroger, Hans-Jurgen Knaup
  • Publication number: 20070068214
    Abstract: In a deep drawing method, a sheet metal blank is positioned between two dies of a deep drawing machine and then shaped into a hollow article, whereby the dies, at least during a partial stroke phase, undergo a controlled non-rectilinear relative movement and one of the dies is shifted by a transverse displacement mechanism in a direction transversely to a stroke direction.
    Type: Application
    Filed: September 12, 2006
    Publication date: March 29, 2007
    Applicant: Benteler Automobiltechnik GmbH
    Inventor: Hans-Jurgen Knaup
  • Publication number: 20070062360
    Abstract: A power cutter for cutting a hardened steel workpiece has upper and lower press plates shiftable vertically relative to each other, a lower blade on the lower plate adapted to support the workpiece and having a lower cutting edge upwardly engaging the workpiece, and an upper blade on the upper plate having an upper cutting edge substantially parallel to and movable vertically past the lower cutting edge. An actuator connected to one of the plates vertically shifts the one plate toward and away from the other plate. An abutment on at least one of the plates bearing on the other of the plates and blocks vertical shifting of the plates toward each other in a position with the upper cutting edge slightly above the lower cutting edge.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 22, 2007
    Inventors: Christian Hielscher, Hans-Jurgen Knaup
  • Patent number: 7165434
    Abstract: The object of the invention is a hot-forming tool (1) having an upper die and a lower die (1a, 1b), the upper as well as the lower die (1a, 1b) each consisting of a base plate (2) having a forming cheek (3) fixed thereto and a core (4) which is also fixed to the base plate (2), and a duct system (5) for the guiding-through of a coolant being constructed between the core (4) and the backside of the forming cheek (3) facing the core (4). In this case, at least the forming cheeks (3) are constructed as cast parts. As a result of this manufacturing method relating to the forming cheeks (2) (3? translator), the manufacturing costs of the hot-forming tool (1) can be significantly lowered because a high-expenditure mechanical cutting machining of the forming cheeks is only still required in the area of the mounting surfaces (3a) as well as the mutually facing exterior sides (3b).
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: January 23, 2007
    Assignee: Benteler Maschinenbau GmbH
    Inventors: Martin Vinnen, Robert Stockter, Hans Jürgen Knaup
  • Publication number: 20060283530
    Abstract: A method of hot-shaping and hardening a hot steel workpiece that is at or above its AC3 temperature.
    Type: Application
    Filed: June 13, 2006
    Publication date: December 21, 2006
    Inventors: Hans-Jurgen Knaup, Christian Hielscher
  • Patent number: 7082808
    Abstract: A method of making a part with regions of different thickness from a plate workpiece having a pair of substantially parallel plate faces. The workpiece is fitted between a surface of a die and a substantially parallel surface of a punch. The die is formed at its surface with an opening. Then the die and the punch are relatively shifted parallel to the surfaces and faces and so as to compress the workpiece parallel to its faces to extrude the workpiece transversely into the opening in the die surface, thereby creating a region of greater thickness.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: August 1, 2006
    Assignee: Benteler Automobil Technik Gmbh
    Inventor: Hans-Jürgen Knaup