Patents by Inventor Willi Baur

Willi Baur 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).

  • Tubular structure
    Patent number: 4010580
    Abstract: The invention relates to a structure, such as a cooling tower, comprising a waisted tubular envelope consisting of a membrane made of a material which is capable of supporting tension in all directions in its plane. The membrane is pre-tensioned and carried with its tubular axis upright from a support which provides the vertical component of the pre-tensioning.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: March 8, 1977
    Inventors: Gunter Mayr, Fritz Leonhardt, Wolfhart Andra, Willi Baur, Wilhelm Zellner, Jorg Schlaich