Emergency power station for traffic control signals

Details Emergency power station for traffic control signals Emergency power station for traffic control signals

1998-04-15

2000-07-25

Pope, Daryl

Communications: electrical

Systems

With specific power supply

3406931, 3406932, 3406935, 340907, G08B 100

Patent

active

060941308

ABSTRACT:
An emergency power station for traffic signal controllers having a general utility power supply, the emergency power station having a small footprint cabinet containing a fuel supply in a lowermost compartment, an engine and an electrical generator in a middle compartment, and a power station controller box in an uppermost compartment, the power station controller box having a power circuit connected to the utility power supply, the electrical power generator and the traffic signal controller, the power circuit including an activatable power switch selectively connecting the utility power supply or the power generator to the traffic signal controller, the power station controller box also including a control circuit with a power line monitor and a programmable timer system for sensing a power loss in the utility power supply, and, after a predetermined delay, activating the engine and switching the switch connecting the traffic signal controller to the power generator.

REFERENCES:
patent: 5239253 (1993-08-01), Shimizu et al.
patent: 5561330 (1996-10-01), Crook

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