Patents by Inventor Hans-Gerd KORTMANN

Hans-Gerd KORTMANN 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 welding a weld stud to a workpiece and of checking the strength of the welded joint
    Patent number: 10471548
    Abstract: A method of welding a weld stud to a workpiece and of checking the strength of the welded joint includes the steps of providing a tool, a workpiece, and a weld stud, the weld stud including a shank and a polygonal shaped head; welding the weld stud onto the workpiece; applying the tool to the polygonal shaped head section of the stud; applying a predetermined test torque to the weld stud with the tool; and checking the welded joint for satisfactory acceptance of the test torque.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: November 12, 2019
    Assignee: NEWFREY LLC
    Inventors: Frank Drexler, Joachim Schneider, Hans-Gerd Kortmann
  • METHOD OF WELDING A WELD STUD TO A WORKPIECE AND OF CHECKING THE STRENGTH OF THE WELDED JOINT
    Publication number: 20140158672
    Abstract: A method of welding a weld stud to a workpiece and of checking the strength of the welded joint includes the steps of providing a tool, a workpiece, and a weld stud, the weld stud including a shank and a polygonal shaped head; welding the weld stud onto the workpiece; applying the tool to the polygonal shaped head section of the stud; applying a predetermined test torque to the weld stud with the tool; and checking the welded joint for satisfactory acceptance of the test torque.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 12, 2014
    Inventors: Frank DREXLER, Joachim SCHNEIDER, Hans-Gerd KORTMANN