Patents by Inventor Marco Walterfang

Marco Walterfang 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 of manufacturing a tubular product and tubular product
    Patent number: 11230743
    Abstract: The present invention relates to a method for manufacturing a tubular product, characterized in that the tubular product is manufactured from steel comprising chromium in the range of 2.5 to 9.5 wt. % and silicon in an amount of more than 1.0 wt. %, and the method comprises the steps of austenitizing, quenching and tempering at a tempering temperature in the range of 300° C. to 550° C. Furthermore, the invention concerns a tubular product produced by this method.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: January 25, 2022
    Assignee: Benteler Steel/Tube GmbH
    Inventors: Michael Kaufmann, Marco Walterfang, Ralf Köster
  • METHOD OF MANUFACTURING A TUBULAR PRODUCT AND TUBULAR PRODUCT
    Publication number: 20200263266
    Abstract: The present invention relates to a method for manufacturing a tubular product, characterized in that the tubular product is manufactured from steel comprising chromium in the range of 2.5 to 9.5 wt. % and silicon in an amount of more than 1.0 wt. %, and the method comprises the steps of austenitizing, quenching and tempering at a tempering temperature in the range of 300° C. to 550° C. Furthermore, the invention concerns a tubular product produced by this method.
    Type: Application
    Filed: February 18, 2020
    Publication date: August 20, 2020
    Inventors: Michael Kaufmann, Marco Walterfang, Ralf Köster
  • MOTOR VEHICLE TRAILER, CHASSIS AXLE, IN PARTICULAR FOR A MOTOR VEHICLE TRAILER AND USE OF THE CHASSIS AXLE AND OF A MATERIAL
    Publication number: 20170297369
    Abstract: The present invention relates to a motor vehicle trailer with at least one rigid axle with at least one tubular element. The motor vehicle trailer is characterized in that the tubular element has a yield strength Rp0.2 of at least 600 MPa, a tensile strength Rm of at least 850 MPa, a breaking elongation A5 of at least 14% and the tubular element (10) consists of an air-hardening, mainly bainitic material. In addition, a chassis axle as well as the use of a material for a chassis axle is disclosed.
    Type: Application
    Filed: April 14, 2017
    Publication date: October 19, 2017
    Inventors: Marco Walterfang, Jozef Balun, Dirk Westhoff
  • MOTOR VEHICLE, CHASSIS COMPONENT, IN PARTICULAR FOR A CHASSIS COMPONENT AND USE OF THE CASSIS COMPONENT AND OF A MATERIAL
    Publication number: 20170298483
    Abstract: The present invention relates to a motor vehicle with at least one chassis component (1). The chassis component is characterized in that the chassis component (1) has a yield strength Rp0.2 of at least 600 MPa, a tensile strength Rm of at least 850 MPa and is utilized in a delivery condition air-hardened and in that the chassis component (1) consists of an air-hardening, mainly bainitic material. Furthermore a chassis component and a material for a chassis component are described.
    Type: Application
    Filed: April 14, 2017
    Publication date: October 19, 2017
    Inventors: Marco Walterfang, Jozef Balun, Thomas Fortmeier, Leonhard Rose