Method and apparatus for simultaneously actuating navigational l

Details Method and apparatus for simultaneously actuating navigational l Method and apparatus for simultaneously actuating navigational l

1984-07-30

1986-10-28

Myracle, Jerry W.

Communications: electrical

Watercraft alarm or indicating systems

Navigation guides

G08G 300

Patent

active

046201904

ABSTRACT:
A method and apparatus for causing a plurality of navigational lanterns, each equipped with an independent light sensing device and connected to a common synchronizing terminal, to actuate simultaneously at dusk, and deactuate simultaneously at dawn. The light sensing device senses the three levels of day, twilight and night. When a sensing device senses day, the connected lantern is disabled from flashing and is disabled from sending a synchronizing signal to other lanterns to flash. When a sensing device senses twilight, the connected lantern is enabled to receive the synchronizing signal, but is disabled from sending a synchronizing signal. When the sensing device senses night, the connecting lantern is enabled and a synchronizing signal to flash is sent to all of the lanterns.

REFERENCES:
patent: 3781853 (1973-12-01), Jacobs
patent: 3855586 (1974-12-01), Jacobs

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