Patents by Inventor Neil Popplewell

Neil Popplewell 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).

  • Speed proving method and apparatus
    Patent number: 11285980
    Abstract: The present invention relates to methods of improving the reliability and accuracy of level crossing warning systems. The invention is comprised of an axle counter based system that detects the presence and calculates the speed of a train approaching a level crossing and adjusts the activation time for any warning system using a pre-defined period.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: March 29, 2022
    Assignee: RAIL CONTROL SYSTEMS AUSTRALIA PTY LTD
    Inventor: Neil Popplewell
  • SPEED PROVING METHOD AND APPARATUS
    Publication number: 20190300029
    Abstract: The present invention relates to methods of improving the reliability and accuracy of level crossing warning systems. The invention is comprised of an axle counter based system that detects the presence and calculates the speed of a train approaching a level crossing and adjusts the activation time for any warning system using a pre-defined period.
    Type: Application
    Filed: November 21, 2017
    Publication date: October 3, 2019
    Inventor: Neil Popplewell