Patents by Inventor Hans Krähenbühl

Hans Krähenbühl 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).

  • Patent number: 6233878
    Abstract: In a sliding wall (10) comprising a plural number of individually slidable wall elements (13), with each of the wall elements (13) at its upper edge near the ceiling being delimited by a horizontally aligned support profile (12), and being laterally slidable along a common track (11) arranged above the support profile (12) by means of at least one running gear (14, 30) attached to the support profile; with each wall element (13) comprising its own drive (17) with an electrically operated drive motor (27), said drive (17) being attached to the wall element (13) and interacting with the track (11) by way of drive means (24, 25), a compact construction and at the same time flexible application are achieved in that the drive motor (27) is arranged within the support profile (12).
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: May 22, 2001
    Assignee: Kaba Gilgen AG
    Inventors: Hans Krähenbühl, Jürg Nyffenegger, Heinz Ulrich