Patents by Inventor Walter BERNOLD

Walter BERNOLD 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: 10919107
    Abstract: A method for producing a rack for a steering gear may involve providing a toothed segment and a shaft segment aligned on a longitudinal axis and connecting the segments by axial joining faces by friction welding at a welding joint. For friction welding, the joining faces may be brought into frictional contact by an initial friction force, the segments may be rotated relative to one another, the joining faces may be mutually compressed by way of a contact pressure force until a predefined joining path has been reached by way of a welding force 10 to 20 times the initial friction force, thermal input friction may be performed by an input force 5 to 12 times the initial friction force, and the segments may be moved toward one another in an axial direction by the predefined joining path. The segments may be held in position without friction.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: February 16, 2021
    Assignees: thyssenkrupp Presta AG, thyssenkrupp AG
    Inventors: Ralf Eckstein, Helmut Braun, Walter Bernold, Detlev Lindner
  • Publication number: 20190247951
    Abstract: A method for producing a rack for a steering gear may involve providing a toothed segment and a shaft segment aligned on a longitudinal axis and connecting the segments by axial joining faces by friction welding at a welding joint. For friction welding, the joining faces may be brought into frictional contact by an initial friction force, the segments may be rotated relative to one another, the joining faces may be mutually compressed by way of a contact pressure force until a predefined joining path has been reached by way of a welding force 10 to 20 times the initial friction force, thermal input friction may be performed by an input force 5 to 12 times the initial friction force, and the segments may be moved toward one another in an axial direction by the predefined joining path. The segments may be held in position without friction.
    Type: Application
    Filed: July 4, 2017
    Publication date: August 15, 2019
    Applicants: THYSSENKRUPP PRESTA AG, thyssenkrupp AG
    Inventors: Ralf ECKSTEIN, Helmut BRAUN, Walter BERNOLD, Detlev LINDNER