Patents by Inventor David MATTINSON

David MATTINSON 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).

  • Publication number: 20200047724
    Abstract: Disclosed herein is an apparatus for changing a traction motor and a wheel assembly out of a locomotive. The apparatus is suitable for use in the field. The apparatus comprises: (i) a frame that is dimensioned to fit under the locomotive and within a railroad track; (ii) a wheel-assembly-support system that is configured to support the wheel assembly such that the wheel assembly is clear of the track; (iii) a traction-motor-positioning system that is operable to position the traction motor with respect to the locomotive; and (iv) a drive assembly that is configured to drive the fame, the wheel-assembly-support system, and the traction-motor-positioning system under the locomotive in a reversible manner. The wheel-assembly-support system, the traction-motor-positioning system, and/or the drive assembly is/are operable by way of a remote control. Methods of changing a traction motor and/or wheel assembly out of a locomotive on a track are also provided.
    Type: Application
    Filed: July 23, 2019
    Publication date: February 13, 2020
    Inventors: David MATTINSON, Charles WALSH