Patents Assigned to Bailey Esacontrol S.p.A.
  • Device for the protection of track relays from electrical disturbances
    Patent number: 5094413
    Abstract: A device for protecting track relays from electrical disturbances originating from a train's traction current. The device has: a control signal generator; a signal inverter, to invert periodically the polarity of the signal emitted; and a receiver for the control signal. A distinguishing circuit is provided downstream from the receiver for assessing the frequencies forming the receive signal and switching the track relay to the "line clear" position only after recognition of the frequencies forming the periodically inverted control signal.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: March 10, 1992
    Assignee: Bailey Esacontrol S.p.A.
    Inventor: Paolo Ripamonti