Patents by Inventor Markfried Schauer

Markfried Schauer 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).

  • Flanged joint for two sheet material air channel sections of rectangular cross section
    Patent number: 4725083
    Abstract: A flanged joint for connecting sheet material air channel sections of essentially rectangular cross section to one another has flanges made of hollow sheet material shapes and steel angle pieces. Each of the hollow sheet material shapes is provided with projections and/or depressions in one or more of the walls which entirely or partially surround a leg of a respective steel angle piece. Each leg of a steel angle piece, in turn, is provided with projections and/or depressions which are disposed at the periphery of the leg and are adjusted to the positions of the projections and/or depressions in the hollow sheet material shapes. At least one of the projections then catches in at least one of the depressions upon pushing a leg of a steel angle piece into a hollow sheet material shape.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: February 16, 1988
    Assignee: Michael Komotzki
    Inventor: Markfried Schauer