Patents by Inventor Otto Wyss

Otto Wyss 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).

  • Grating
    Patent number: 3943675
    Abstract: A grating assembly comprises a plurality of inverted T-shaped cross pieces 2 each having a plurality of slots 3 in the upper flange. The slots have convexly curved central walls 4. A plurality of transverse profile bars 1 have curved lower flange portions 1c that engage in the slot curvatures when assembled. The latter is implemented by bending the pieces 2 to open the slot mouths and facilitate the bar insertions.
    Type: Grant
    Filed: March 11, 1975
    Date of Patent: March 16, 1976
    Inventor: Otto Wyss