Patents by Inventor Josef Brendel

Josef Brendel 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 and apparatus for tightening or loosening screw-type connections
    Patent number: 4709182
    Abstract: A method and apparatus for tightening or loosening screw-type connections, in which the screw bolt is stimulated to oscillate longitudinally, the natural frequency of the bolt is measured and the excitation frequency is made to follow the changing natural frequency during the bolting process with a minimum, necessary excitation energy, so that the screw bolt attains a permanent state of resonance.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: November 24, 1987
    Assignee: VEB Chemieanlagenbaukombinat Leipzig/Grimma
    Inventors: Hanno Wenske, Arnold Gallien, Martin Kauschinger, Klaus Unger, Josef Brendel, Lutz Lampe