Patents by Inventor Patrick J. Venneman

Patrick J. Venneman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Crossing predictor with authorized track speed input
    Patent number: 8297558
    Abstract: A method and apparatus for controlling a grade crossing warning system employs a track occupancy circuit or other device to detect the presence of a train in the approach to a grade crossing and an indirect indication of a maximum authorized speed of the train in order to determine an amount of time to delay activation of the grade crossing warning system after the train has been detected. The indirect indication is preferably encoded onto a signal associated with the track occupancy circuit, preferably using a frequency shift technique. The indirect indication may be supplied by a wayside signal device.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: October 30, 2012
    Assignee: Safetran Systems Corporation
    Inventors: Randy M. O'Dell, Patrick J. Venneman
  • CROSSING PREDICTOR WITH AUTHORIZED TRACK SPEED INPUT
    Publication number: 20110226909
    Abstract: A method and apparatus for controlling a grade crossing warning system employs a track occupancy circuit or other device to detect the presence of a train in the approach to a grade crossing and an indirect indication of a maximum authorized speed of the train in order to determine an amount of time to delay activation of the grade crossing warning system after the train has been detected. The indirect indication is preferably encoded onto a signal associated with the track occupancy circuit, preferably using a frequency shift technique. The indirect indication may be supplied by a wayside signal device.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 22, 2011
    Applicant: SAFETRAN SYSTEMS CORPORATION
    Inventors: RANDY M. O'DELL, PATRICK J. VENNEMAN