Patents by Inventor Mark James Mitchell

Mark James Mitchell 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).

  • Device, system and method for detecting leakage current for traction power system
    Patent number: 12145636
    Abstract: A method, device, and system for detecting a current leak in a traction power rail. Magnetic or electrical properties of the rail are measured. The measurements are performed using a rail instrument that senses the properties around the rail at various times while the instrument is being moved down the rail, such as using a cart or train. The rail instrument may be a flux concentrator or open Rogowski coil. The locations of the rail, about which the readings are taken by the rail instrument, may be determined and correlated with the measurements themselves. The method may comprise measuring the magnetic field of the rail along a length of the rail, and identifying a leak based on differences between the magnetic field measurements. The system may comprise a cart comprising the rail instrument and a location instrument.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: November 19, 2024
    Assignee: Hatch Ltd.
    Inventors: Patrick Henry McGinn, Mark James Mitchell, Matthew Douglas Brown, Matthew Gorczyca, Michael Morgan Campbell
  • DEVICE, SYSTEM AND METHOD FOR DETECTING LEAKAGE CURRENT FOR TRACTION POWER SYSTEM
    Publication number: 20230084963
    Abstract: A method, device, and system for detecting a current leak in a traction power rail. Magnetic or electrical properties of the rail are measured. The measurements are performed using a rail instrument that senses the properties around the rail at various times while the instrument is being moved down the rail, such as using a cart or train. The rail instrument may be a flux concentrator or open Rogowski coil. The locations of the rail, about which the readings are taken by the rail instrument, may be determined and correlated with the measurements themselves. The method may comprise measuring the magnetic field of the rail along a length of the rail, and identifying a leak based on differences between the magnetic field measurements. The system may comprise a cart comprising the rail instrument and a location instrument.
    Type: Application
    Filed: April 9, 2021
    Publication date: March 16, 2023
    Inventors: Matthew Gorczyca, Mark James Mitchell, Patrick Henry McGinn, Michael Morgan Campbell, Matthew Douglas Brown