Patents by Inventor Johann Albenberger

Johann Albenberger 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).

  • Backrest
    Patent number: 4316631
    Abstract: A curved backing insert is held in a backrest frame and adjustable to conform to the spine of a person leaning against the backrest. The backing insert comprises at least one elastic bow having a first end supported by said frame, a second end vertically spaced from said first end, and an intermediate vertex portion including a vertex. First stressing means are adjustable to move said second end so as to change the height and curvature of said bow. Second stressing means are adjustable to adjust said vertex relative to said first and second ends.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: February 23, 1982
    Assignee: Steyr-Daimler-Puch Aktiengesellschaft
    Inventors: Wolfgang Lenz, Johann Albenberger, Karl Knell