Patents by Inventor Hermann Quenzel

Hermann Quenzel 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).

  • Bolt connections between tubular rods and junctions in three-dimensional frameworks
    Patent number: 4193706
    Abstract: A bolt connection between tubular rods and junctions in three-dimensional frameworks wherein the tubular rods are of constant diameter along their entire length and it continues the same beyond the hook-up parts at the tubular rod ends as far as those ends of the hook-up parts which are assembled each with one drive sleeve, and the smallest outside diameter of the drive sleeves being equal to or exceeding that of the tubular rods and of the hook-up parts.
    Type: Grant
    Filed: August 10, 1978
    Date of Patent: March 18, 1980
    Assignee: Mero-Raumstruktur GmbH & Co. Wurzburg
    Inventors: Helmut Eberlein, Hermann Quenzel, Otto Kornberger