Car-displayed Crossing Signals Patents (Class 246/208)
  • Patent number: 7398140
    Abstract: Provided is an operator warning system for use in connection with a locomotive having a horn system with a horn activation actuator and a horn device for producing a noise. The operator warning system includes an onboard computer system with a database having grade crossing data and locomotive data thereon. The onboard computer system is in communication with the horn system. The operator warning system also includes a warning device for providing an audio, visual and/or tactile indicator to an operator of the locomotive based upon the grade crossing data, locomotive data and/or actuation condition of the horn activation actuator. A method for improving locomotive operator vigilance is also provided.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: July 8, 2008
    Assignee: Wabtec Holding Corporation
    Inventors: Jeffrey D. Kernwein, Frank Wilson, Kevin J. Angel, Scott A. Sollars
  • Patent number: 5542737
    Abstract: A forwardly-opening scoop is positioned at the upper rear of a snowplow or the like, and a downwardly directed duct portion communicates with it to direct air downwardly along the vertical rear wall of the truck. The device has multiple air outlets, to distribute the air to different areas, to maximize the cleaning effect. Preferably, the device extends down to cover the full height of the rear wall, and includes an air outlet at the bottom edge so that tail/brake lights are also washed by air. A reflective checkerboard preferably is displayed on the device.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: August 6, 1996
    Inventor: William R. Madden