Patents by Inventor Gunter Robiller, deceased

Gunter Robiller, deceased 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).

  • Measuring method for determining the elongation after rupture of a tensile testpiece
    Patent number: 5193398
    Abstract: The invention relates to a measuring method to determine elongation after fracture on a tensile testpiece in a computer controlled tensile test. To meet the requirements of the tensile test to DIN EN 10002/1, the measuring grid known from DIN EN 10002/1 is applied to the tensile testpiece. The measuring grid is scanned with a line sensing camera. In the tensile test the elongation of the testpiece is determined when the tensile force has exceeded its maximum and drops to zero. That place for which the computer with the CCD camera detects the greatest distance between adjacent grid lines is utilized to calculate the elongation after fracture to DIN EN 10002/1.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: March 16, 1993
    Assignee: Thyssen Stahl Aktiengesellschaft
    Inventors: Jurgen Harder, Gunter Robiller, deceased, Hans-Martin Sonne