Patents by Inventor Bernhard Kotulla

Bernhard Kotulla 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).

  • Anchoring of tension members
    Patent number: 4501516
    Abstract: By using a packer which is pushed as far over an anchor as the intended length of the moulding, the cavity in a borehole in the region of the bond can be completely filled with a reactive resin. Overhead work is possible even with slowly reacting resins. By using a catalyst on the packer, the reactive resin injected into the borehole behind the packer can be made to harden very rapidly.
    Type: Grant
    Filed: November 4, 1983
    Date of Patent: February 26, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernhard Kotulla, Martin Weiser, Jurgen Faltin, Lothar Preis, Rudolf Schmidt, Eberhard Born
  • Anchoring of tension members
    Patent number: 4443132
    Abstract: By using a packer which is pushed as far over an anchor as the intended length of the moulding, the cavity in a borehole in the region of the bond can be completely filled with a reactive resin. Overhead work is possible even with slowly reacting resins. By using a catalyst on the packer, the reactive resin injected into the borehole behind the packer can be made to harden very rapidly.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: April 17, 1984
    Assignees: Bayer Aktiengesellschaft, Strabag Bau-AG
    Inventors: Bernhard Kotulla, Martin Weiser, Jurgen Faltin, Lothar Preis, Rudolf Schmidt, Eberhard Born
  • Reinforcement of armored earth work constructions
    Patent number: 4273476
    Abstract: The outer skin of armored earthwork constructions is attached to bands and the traction is transmitted to the ground by friction. The bands are made of a corrosion resistant, high strength weave or netting of reinforced organic, glass or carbon fibres or fibre mixtures and are preferably impregnated with liquid reaction resins such as epoxide, polyurethane or isocyanate resins. It is advantageous to impregnate the bands and then to harden them only after they have been laid.
    Type: Grant
    Filed: November 15, 1978
    Date of Patent: June 16, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernhard Kotulla, Hans Haas, Martin Weiser, Rolf Forster, Lothar Preis, Rudolf Schmidt