Patents by Inventor Alfred Wiehl

Alfred Wiehl 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).

  • Door
    Patent number: 4457108
    Abstract: A door includes an elongated bearing rail and at least one door section which is operatively connected to the rail for sliding movement in a direction along the elongation of the rail. The door section is so mounted relative to the rail as to perform transversal movement about an axis extending substantially in parallel to said rail. During the transversal movement of the door section frictional rotation between the bearing rail and the connecting means is precluded.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: July 3, 1984
    Assignee: IFE Gesellschaft m.b.H.
    Inventors: Konrad Kuschel, Alfred Wiehl