Patents Assigned to Societe Anonyme dite: UNELEC
  • Switch with device to interlock the switch control if the contacts stick
    Patent number: 4165453
    Abstract: A switch in which if the contacts of the switch are lightly stuck together the switch control can still separate them, but if the contacts are firmly stuck together then the switch control cannot be moved to the "off" position which would give a dangerously erroneous indication of the state of the circuit switched. A two arm locking lever is pivotally mounted and has a first stop constituted by a spring into which one of the arms penetrates, and a second stop constituted by a pivot axis of the device.
    Type: Grant
    Filed: July 28, 1977
    Date of Patent: August 21, 1979
    Assignee: Societe Anonyme dite: UNELEC
    Inventor: Jean Hennemann
  • Circuit-breaker operating mechanism
    Patent number: 4129762
    Abstract: The mechanism enables normal separation of the contacts when the handle is moved, even if the contacts are lightly welded together. This prevents the handle from moving if they are solidly welded together. A toggle joint is included between the drive member for the moving contacts and the automatic trip mechanism. The shaft of the toggle is engaged in an opening in an articulated arm.
    Type: Grant
    Filed: July 19, 1977
    Date of Patent: December 12, 1978
    Assignee: Societe Anonyme dite: UNELEC
    Inventor: Michel Bruchet