Three And Multiple Throw Patents (Class 246/403)
  • Patent number: 9592842
    Abstract: A locomotive control system and method of use operable to provide operational control of a locomotive ensuing the detection that the locomotive will enter a railroad switch having the point blades incorrectly positioned. The locomotive control system further includes a point alignment detection sensor being operably coupled to a railroad switch and the point blades thereof. A plurality of track transceivers are mounted adjacent to the railroad switch and extend outward from the railroad switch along the railroad track. At least one engine transceiver is provided and is operably coupled to a locomotive. A controller is included and functions to provide logic and control of the locomotive control system. The method provides monitoring of the point blades of a railroad switch and detection of the movement of an approaching locomotive having entered the detection zone and is operable to prevent movement through the railroad switch if damage will occur thereto.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: March 14, 2017
    Inventor: John Mercer