Directional reference for trailing locomotives and railroad cars
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United States of America Statutory Invention Reg
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-
Jun 5, 2001
Grant Date -
N/A
app pub date -
Apr 5, 1999
filing date -
Apr 5, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A universal directional reference for trailing locomotives and railroad cars employs a two wire mating connector for each end of the car or locomotive, each wire having a male contact at one end and a female contact at the opposite end and in a sense opposite to the other wire. A positive polarity established on one conductor having its male contact at the leading end of the controlling locomotive causes the same polarity to appear on the female contact at the rear end of said locomotive which is connected to the male contact of the next car or locomotive thereby sustaining the pattern throughout the train. Reverse orientation of any trailing unit automatically swaps the internal polarity of its trainline wires to compensate for the otherwise reverse direction of travel.
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