Norfolk Southern Corporation

Bruce Edward Backus

Charles W Yopp

Donald Dietrich Graab

Described herein is a system for testing one or more multiple-unit (MU) conductors on a locomotive using a first and second test unit together with a portable display unit having a wireless transceiver for communicating with the test units. The portable display may include a panel of LED indicators corresponding to the MU conductors to be tested and a user interface in the form of a display screen. The system may be used for running both test procedures and monitoring procedures. The wireless portable display unit allows a single technician to run the procedures and review information from both test units without using long and heavy MU jumper cables.

Testing system for multiple-unit locomotives

A system and method for maintaining a supply of compressed air on a locomotive. In one embodiment of the invention a compressed air system for a railroad locomotive comprises: a first air compressor; a second air compressor; a layover heater for maintaining the temperature of engine coolant; and a control system, wherein the first air compressor, the second air compressor, the layover heater, and the control package can be powered by at least one of the following power sources: an onboard electrical power source; or an offboard power source, wherein the layover heater can utilize heat generated by the first air compressor and the second air compressor to maintain the temperature of engine coolant, and wherein the control system operating the compressed air system utilizes a first logic when the power source is the onboard electrical power source and a second logic when the power source is the off board power source.

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Kennesaw, GA, United States of America

Bruce Edward Backus