Patents by Inventor Jörg Mertens

Jörg Mertens 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: 11220721
    Abstract: A flat steel product and a method of making a flat steel product having a hole expansion of at least 60%, a yield strength of at least 660 MPa, a tensile strength of at least 760 MPa, and an elongation at break of at least 10%. The flat steel product is made from a complex-phase steel, which includes (in wt %) C: 0.01-0.1%, Si: 0.1-0.45%, Mn: 1-2.5%, Al: 0.005-0.05%, Cr: 0.5-1%, Mo: 0.05-0.15%, Nb: 0.01-0.1%, Ti: 0.05-0.2%, N: 0.001-0.009%, P: <0.02%, S: <0.005%, Cu: ?0.1 %, Mg: ?0.0005 %, O: <0.01 %, optionally one or more of Ni, B, V, Ca, Zr, Ta, W, REM, and Co, where Ni: ?1%, B: ?0.005%, V: ?0.3%, Ca: 0.0005-0.005%, Zr, Ta, W: in total ?2%, REM: 0.0005-0.05%, and Co: <1%, and iron and unavoidable impurities as the remainder, where % Ti>(48/14)% N+(48/32)% S and % Nb<(93/12)% C+(45/14)% N+(45/32)% S. The structure of the flat steel product includes (in area %) ?80% bainite, <15% ferrite, <15% martensite, <5% cementite, and <5 vol % retained austenite.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: January 11, 2022
    Assignees: THYSSENKRUPP STEEL EUROPE AG, THYSSENKRUPP AG
    Inventors: Thorsten Rösler, Liuyi Zhang, Jörg Mertens
  • Publication number: 20190338384
    Abstract: A flat steel product and a method of making a flat steel product having a hole expansion of at least 60%, a yield strength of at least 660 MPa, a tensile strength of at least 760 MPa, and an elongation at break of at least 10%. The flat steel product is made from a complex-phase steel, which includes (in wt %) C: 0.01-0.1%, Si: 0.1-0.45%, Mn: 1-2.5%, Al: 0.005-0.05%, Cr: 0.5-1%, Mo: 0.05-0.15%, Nb: 0.01-0.1%, Ti: 0.05-0.2%, N: 0.001-0.009%, P: <0.02%, S: <0.005%, Cu: ?0.1 % , Mg: ?0.0005 % , O: <0.01 % , optionally one or more of Ni, B, V, Ca, Zr, Ta, W, REM, and Co, where Ni: ?1%, B: ?0.005%, V: ?0.3%, Ca: 0.0005-0.005%, Zr, Ta, W: in total ?2%, REM: 0.0005-0.05%, and Co: <1%, and iron and unavoidable impurities as the remainder, where % Ti>(48/14)% N+(48/32)% S and % Nb<(93/12)% C+(45/14)% N+(45/32)% S. The structure of the flat steel product includes (in area %) >80% bainite, <15% ferrite, <15% martensite, cementite, and <5 vol % retained austenite.
    Type: Application
    Filed: January 16, 2018
    Publication date: November 7, 2019
    Inventors: Thorsten Rösler, Liuyi Zhang, Jörg Mertens
  • Publication number: 20140041767
    Abstract: A hot-rolled flat steel product having a tensile strength of at least 1100 MPa, good elongation properties, and good deformation properties. The flat steel product is produced from a complex phase steel, which contains, in addition to iron and inevitable impurities (in % by weight), C: 0.13-0.2%, Mn: 1.8-2.5%, Si: 0.70-1.3%, Al: 0.01 to 0.1%, P: up to 0.1%, S: up to 0.01%, Cr: 0.25-0.70%, optionally Mo, the total of the Cr and Mo contents being 0.25-0.7%, Ti: 0.08-0.2%, B: 0.0005-0.005%, and a structure which consists of at the most 10% by volume of residual austenite, 10-60% by volume of martensite, at the most 30% by volume of ferrite and at least 10% by volume of bainite. Also, a method for producing such a flat steel product.
    Type: Application
    Filed: December 29, 2011
    Publication date: February 13, 2014
    Applicant: THYSSENKRUPP STEEL EUROPE AG
    Inventors: Brigitte Hammer, Jörg Mertens, Günter Stich
  • Patent number: 6186286
    Abstract: A braking device for wheels of vehicles such as trailers includes a caliper in which brake linings are guided. Between these linings, at least one brake disk is displaceably held on driving toothing of a wheel hub. A pneumatically operable mechanical adjusting device interacts with the brake linings. The braking device includes at least one brake disk in a caliper which is fixed. On one end, the caliper is connected by a fastening element with an axle element of the vehicle. On the caliper, an enclosing housing for bearing the adjusting device is held. By way of a bearing plate, the adjusting device is also supported on the caliper. Pressure pistons of the device are guided by a one-part yoke in a jointly axially adjustable manner and can be acted upon by pressure with respect to the brake linings and the brake disks.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: February 13, 2001
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Harald Häussler, Helmut Pietsch, Roland Martin, Carsten-Jörg Mertens, Artur Grunwald, Thomas Klaas, Michael Pehle, Reinhold Pittius
  • Patent number: 5666860
    Abstract: A gas pedal arrangement for a motor vehicle has a pedal plate which is swivellably held on a pedal holding device in the form of a housing. This pedal plate is connected with an adjusting device. The pedal holding device consists of an oblong housing which includes two half shells and in which components of the adjusting device are held on bearing points molded on the inside. On the outside of the half shells, transversely extending catch hook strips are provided, and on an underside of the half shells directed toward the vehicle body, molded-on common centering domes are provided for the fastening and fixing of the position of the housing. A gas pull is connected with a deflecting lever in a suspended manner, the gas pull being guided in the base of the pedal plate on a swivellable deflecting pulley which has a circular-arc-shaped segment.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: September 16, 1997
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Hans-Uwe Baumann, Carsten-Joerg Mertens
  • Patent number: 5497677
    Abstract: An accelerator pedal device for a motor vehicle is provided with a pedal plate which is swivellably disposed on a pedal holding device in the form of a housing, and an adjusting device is connected with the pedal plate. The pedal holding device consists of an oblong housing comprising two half shells in which components of the adjusting device are held on bearing points molded on to the interior side. On the exterior side of the half shells, transversely extending catch hook strips are arranged, and, on a lower surface of the half shells facing the vehicle body, molded-on common centering domes are provided for the fastening and fixing of the position.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: March 12, 1996
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Hans U. Baumann, Carsten-Joerg Mertens