Railway switches and signals – Train-position indication – Train annunciators or indicators
Patent
1998-05-26
2000-09-05
Le, Mark T.
Railway switches and signals
Train-position indication
Train annunciators or indicators
246477, 246488, 246292, 246167A, B61L 2500
Patent
active
061130370
ABSTRACT:
A railroad maintenance-of-way personnel warning system and method therefor provides advanced detection and warning of oncoming trains encroaching the construction area. Magnetometer sensors detect an oncoming train whereby a waning signal is transmitted to a receiver unit at the construction zone. Warning alarms including a flashing light and siren horn are thereby activated to indicate the imminent danger such whereupon the construction personnel may take precautionary and evasive action in sufficient time to avoid mishap.
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EVA Signal Corporation
Le Mark T.
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