Patents by Inventor Stefan Grottke

Stefan Grottke 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: 11505266
    Abstract: The invention relates to a crossmember for motor vehicle construction, having at least two modules that can be arranged one above the other, wherein each module has an inner side wall and an outer side wall, which are connected to one another at their upper ends by an upper wall and at their lower ends by a lower wall, wherein the upper wall of the lower module has, over the longitudinal extent thereof, a raised portion or depression, which engages in a complementary depression or raised portion of the lower wall of the upper module.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: November 22, 2022
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Rodscha Drabon, Siegmund Czerr, Hendrik Reineke, Stefan Grottke
  • Patent number: 11124245
    Abstract: The present invention relates to a sill of a vehicle body (1), comprising a lower sill part (5) and an upper sill part (6) placed on and attached to the lower sill part (5). The sill is characterized in that the upper sill part (6) is part of a vehicle superstructure (3), in that in one side of a first sill part (5, 6), which faces the further sill part (6, 5), a recess (7) and, on one side of the further sill part (6, 5), which faces the first sill part (5, 6), a protrusion (61) is provided, wherein the shape of the recess (7) corresponds to the shape of the protrusion (61) and the protrusion (61) interlocks form-fittingly in the recess (7). In addition, the invention relates to a vehicle body (1) with two sills (4) and a method of manufacturing such a vehicle body.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: September 21, 2021
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Stefan Grottke, Stefan Schmitz, Rodscha Drabon
  • Patent number: 11040740
    Abstract: The present invention relates to a sill of a vehicle body (3). The sill is characterized in that the sill (10) comprises at least a first sill profile (11) and a second sill profile (12), in that the sill profiles (11, 12) extend in the longitudinal direction of the sill (10) and each comprise a connecting surface (111, 121) which faces the further sill profile (11, 12), in that the connecting surfaces (111, 121) at least partially run vertically, in that the at least two sill profiles (11, 12) over at least one area of the connecting surfaces (111, 121) of the sill profiles (11, 12) are adhesively connected to one another, and in that at least on one of the sill profiles (11, 12), adjacent to the connecting surface (111, 121), at least one snap-in protrusion (14) is formed onto it which interlocks with at least one snap-in receiving section (15) of another one of the sill profiles (11, 12).
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: June 22, 2021
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Stefan Grottke, Stefan Schmitz, Jochem Grewe
  • Publication number: 20200140018
    Abstract: The present invention relates to a sill of a vehicle body (3). The sill is characterized in that the sill (10) comprises at least a first sill profile (11) and a second sill profile (12), in that the sill profiles (11, 12) extend in the longitudinal direction of the sill (10) and each comprise a connecting surface (111, 121) which faces the further sill profile (11, 12), in that the connecting surfaces (111, 121) at least partially run vertically, in that the at least two sill profiles (11, 12) over at least one area of the connecting surfaces (111, 121) of the sill profiles (11, 12) are adhesively connected to one another, and in that at least on one of the sill profiles (11, 12), adjacent to the connecting surface (111, 121), at least one snap-in protrusion (14) is formed onto it which interlocks with at least one snap-in receiving section (15) of another one of the sill profiles (11, 12).
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Inventors: Stefan Grottke, Stefan Schmitz, Jochem Grewe
  • Publication number: 20200140021
    Abstract: The present invention relates to a sill of a vehicle body (1), comprising a lower sill part (5) and an upper sill part (6) placed on and attached to the lower sill part (5). The sill is characterized in that the upper sill part (6) is part of a vehicle superstructure (3), in that in one side of a first sill part (5, 6), which faces the further sill part (6, 5), a recess (7) and, on one side of the further sill part (6, 5), which faces the first sill part (5, 6), a protrusion (61) is provided, wherein the shape of the recess (7) corresponds to the shape of the protrusion (61) and the protrusion (61) interlocks form-fittingly in the recess (7). In addition, the invention relates to a vehicle body (1) with two sills (4) and a method of manufacturing such a vehicle body.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Inventors: Stefan Grottke, Stefan Schmitz, Rodscha Drabon
  • Publication number: 20200130761
    Abstract: The invention relates to a crossmember for motor vehicle construction, having at least two modules that can be arranged one above the other, wherein each module has an inner side wall and an outer side wall, which are connected to one another at their upper ends by an upper wall and at their lower ends by a lower wall, wherein the upper wall of the lower module has, over the longitudinal extent thereof, a raised portion or depression, which engages in a complementary depression or raised portion of the lower wall of the upper module.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 30, 2020
    Applicant: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Rodscha DRABON, Siegmund CZERR, Hendrik REINEKE, Stefan GROTTKE
  • Patent number: 9045173
    Abstract: A front-end structure of a motor vehicle includes a transverse member and two crash boxes. In addition a transverse reinforcement member is arranged according to the invention, wherein the transverse reinforcement member is supported via coupling beams on a subframe.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: June 2, 2015
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Franz Ulrich Brockhoff, Stefan Grottke, Stefan Schmitz
  • Publication number: 20140216839
    Abstract: A front-end structure of a motor vehicle includes a transverse member and two crash boxes. In addition a transverse reinforcement member is arranged according to the invention, wherein the transverse reinforcement member is supported via coupling beams on a subframe.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 7, 2014
    Applicant: Benteler Automobiletechnik GmbH
    Inventors: Franz Ulrich Brockhoff, Stefan Grottke, Stefan Schmitz
  • Patent number: 8733823
    Abstract: A bumper system for a motor vehicle includes a bumper cross member which is arranged transversely to a travel direction and has two attachment zones for connection to two side rails arranged in parallel relationship to the travel direction. The bumper cross member has a center portion extending between the attachment zones and two end zones to close off the bumper cross member to vehicle sides. A deformation element is arranged behind each of the end zones and constructed to support in the event of a head-on collision with slight overlap the end zone which undergoes a buckling as a result of the head-on collision. At least one belt element at least partly surrounds a circumference of the deformation element and is secured to at least one of the side rails.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 27, 2014
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Franz Ulrich Brockhoff, Stefan Grottke, Stefan Schmitz, Holger Diersmann
  • Publication number: 20130234456
    Abstract: A bumper system for a motor vehicle includes a bumper cross member which is arranged transversely to a travel direction and has two attachment zones for connection to two side rails arranged in parallel relationship to the travel direction. The bumper cross member has a center portion extending between the attachment zones and two end zones to close off the bumper cross member to vehicle sides. A deformation element is arranged behind each of the end zones and constructed to support in the event of a head-on collision with slight overlap the end zone which undergoes a buckling as a result of the head-on collision. At least one belt element at least partly surrounds a circumference of the deformation element and is secured to at least one of the side rails.
    Type: Application
    Filed: August 31, 2012
    Publication date: September 12, 2013
    Applicant: Benteler Automobiltechnik GmbH
    Inventors: Franz Ulrich Brockhoff, Stefan Grottke, Stefan Schmitz, Holger Diersmann
  • Publication number: 20130187396
    Abstract: In a method for producing a motor vehicle bending cross member bending a double-U-profile is initially formed from a metal plank. The double-U-profile has two U-shaped longitudinal sections which are connected by a web. The outer legs of the double-U-profile are longer than the inner legs which are connected by the web.
    Type: Application
    Filed: July 24, 2012
    Publication date: July 25, 2013
    Applicant: Benteler Automobiltechnik GmbH
    Inventors: Franz Ulrich Brockhoff, Stefan Grottke, Stefan Schmitz, Holger Diersmann