MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202617016949 A) filed by Bnsf Railway Company on February 16, 2026, for System For Testing Railroad Crossing Signals.
Inventor includes Applegate, Joshua, A..
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: A railroad crossing signal test system includes a power source, a timer device configured to provide periodic electrical pulses, and first and second relays. The first relay can be configured to alternately provide the periodic electrical pulses to a left and right light of the railroad crossing signal. The second relay can be configured to alternately change a polarity of a common connection between the left light and the right light of the railroad crossing signal. The test system also includes a first switch configured to test a bell of 'the railroad crossing signal, a second switch configured to enable flashing o f the left light according to the periodic electrical pulses, and a third switch configured to enable flashing of the right light according to the periodic electrical pulses. The system also includes test leads for electrically coupling the test system to test terminals of the railroad crossing signal
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