Patents by Inventor Müller Christian

Müller Christian 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).

  • Process and device for producing hot-formed wheel naves
    Patent number: 10092944
    Abstract: A method for producing a wheel disk of a vehicle wheel may involve producing the wheel disk produced from a steel blank by hot forming. The blank may be at least partially hardened, preferably press-hardened, during or after the hot forming. The blank may be hot formed using at least one punch and at least one die, and at least one opening may be introduced into the blank using hot trimming means. At least one opening may be introduced during the hot trimming using at least one trimming bolt and an application bolt, wherein the application bolt may have at least one region having a cross-sectional shape that is variable in a longitudinal direction of the application bolt. Using the application bolt, the at least one opening may be calibrated via the variable cross sectional shape.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: October 9, 2018
    Assignees: THYSSENKRUPP STEEL EUROPE AG, THYSSENKRUPP AG
    Inventors: Arndt Marx, Müller Christian, David Pieronek, Axel Grüneklee, Markus Zörnack
  • PROCESS AND DEVICE FOR PRODUCING HOT-FORMED WHEEL NAVES
    Publication number: 20160318091
    Abstract: A method for producing a wheel disk of a vehicle wheel may involve producing the wheel disk produced from a steel blank by hot forming. The blank may be at least partially hardened, preferably press-hardened, during or after the hot forming. The blank may be hot formed using at least one punch and at least one die, and at least one opening may be introduced into the blank using hot trimming means. At least one opening may be introduced during the hot trimming using at least one trimming bolt and an application bolt, wherein the application bolt may have at least one region having a cross-sectional shape that is variable in a longitudinal direction of the application bolt. Using the application bolt, the at least one opening may be calibrated via the variable cross sectional shape.
    Type: Application
    Filed: December 15, 2014
    Publication date: November 3, 2016
    Applicants: ThyssenKrupp Steel Europe AG, ThyssenKrupp AG
    Inventors: Arndt Marx, Müller Christian, David Pieronek, Axel Grüneklee, Markus Zörnack