Signal apparatus

Details Signal apparatus Signal apparatus

1984-08-16

1987-10-20

Swann, III, Glen R.

Communications: electrical

Selective

Having indication or alarm

318256, 318282, 340 50, 362 35, B60Q 100

Patent

active

047017430

ABSTRACT:
Signal apparatus including an assembly for producing a signal beam and another assembly for sweeping the beam in at least one zone of rotation. A control circuit connected to the sweeping assembly causes it to sweep the signal beam in periodically reversed motion at a substantially constant angular velocity across the zone of rotation between preselected endpoints thereof.

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