Patents Assigned to Uniswitch AG.
  • Disc tumbler cylinder lock
    Patent number: 4644768
    Abstract: A disc tumbler cylinder lock wherein the cylinder has transverse slots for frame-like tumblers having enlarged portions normally extending into the case for the cylinder under the action of springs to thus prevent rotation of the cylinder except on insertion of a proper key which retracts the tumblers into the cylinder. The enlarged portions are wedges which form part of U-shaped or Z-shaped sections of the frames.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: February 24, 1987
    Assignee: Uniswitch AG.
    Inventors: Claude Nowak, Peter Landis