Patents Assigned to PHW Inc.
  • TRACK RECEIVER
    Publication number: 20030052233
    Abstract: A track receiver is located on-board a locomotive for receiving a first magnetic field produced in response to a cab signal carrier transmitted through a rail on which the locomotive is carried. The track receiver is oriented so that a second magnetic field produced during operation of a traction motor of the locomotive propagates substantially perpendicular to an axis of sensitivity of the track receiver, and is oriented so that the first magnetic field propagates parallel to the axis of sensitivity of the track receiver.
    Type: Application
    Filed: September 17, 2001
    Publication date: March 20, 2003
    Applicant: PHW Inc.
    Inventor: John S. Frick
  • Track receiver
    Patent number: 6527230
    Abstract: A track receiver is located on-board a locomotive for receiving a first magnetic field produced in response to a cab signal carrier transmitted through a rail on which the locomotive is carried. The track receiver is oriented so that a second magnetic field produced during operation of a traction motor of the locomotive propagates substantially perpendicular to an axis of sensitivity of the track receiver, and is oriented so that the first magnetic field propagates parallel to the axis of sensitivity of the track receiver.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: March 4, 2003
    Assignee: PHW Inc.
    Inventor: John S. Frick