Patents Assigned to Observatorie Cantonal
  • Display means
    Patent number: 4860471
    Abstract: The present invention concerns a display means.This display means comprises a thin, light pivoting flap (5) with two principal surfaces (6, 6') and a rotating stepping motor (13). The motor drives the shutter by means of an elastic device (16) which times motor acceleration. A predetermined number of motor steps corresponds to one complete rotation of the flap.The display means is used to form large display units for train stations, airports, etc.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: August 29, 1989
    Assignee: Observatorie Cantonal
    Inventor: Jacques Bonanomi