Patents by Inventor Hermann Netzsch

Hermann Netzsch 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 apparatus for testing arc stud welding guns
    Patent number: 4297560
    Abstract: Both process and apparatus are disclosed for testing arc stud welding guns. The process and apparatus are premised on generating two electric signals, the first of which occurs as a result of a switching action at the beginning of a welding operation. The second occurs when the welding stud impacts it's counter-electrode. The elapsed time between these signals is measured and used as a basis to determine the effectiveness of the arc stud welding gun. Process and apparatus are both disclosed for testing during actual and simulated arc welding.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: October 27, 1981
    Assignee: USM Corporation
    Inventor: Hermann Netzsch