Patents by Inventor Rudolf Bergermann

Rudolf Bergermann 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).

  • Patent number: 4673309
    Abstract: A method and an apparatus are described for anchoring cables, bundles of parallel or standard wire, or the like, of preferably high-tensile steel wire. At least one end of the cable or the like is introduced into a fixed anchoring socket and sealed with a pourable material. In order for the anchoring apparatus to have improved properties under static stress, and in particular under great dynamic stress, without requiring additional structural safety features, while enabling lower-cost manufacture, it is provided that the bundle be twisted and the bundle or cable opened for some distance from the associated end in such a manner that the wires or strands extend uniformly all the way through the conical inner region of the anchoring socket. Further, a metallic casting material is poured into the anchoring socket between the opened wires or strands, and a direct metal-to-metal joint is established between the metallic casting material and the wires or strands of the cable or bundle.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: June 16, 1987
    Inventors: Jorg Schlaich, Rudolf Bergermann