Communications: electrical – Selective – Having indication or alarm
Patent
1981-06-25
1983-06-21
Crosland, Donnie Lee
Communications: electrical
Selective
Having indication or alarm
340 81R, 340114B, 340332, 116 18, 315200A, B60Q 126, H05B 3900
Patent
active
043896324
ABSTRACT:
A flasher unit for buoys, beacons and the like for flashing an incandescent lamp in a required sequence of short and long flashes having short or long eclipses between flashes. A counter is provided having a number of counts equal to the number of flash-eclipse pairs required. A timing pulse generator is selectively controlled to produce timing pulses during each count that are temporally spaced in accordance with the flash-eclipse time durations during each count. Certain ones of the timing pulses serve to clock the counter. Lamp control pulses are generated during each count for energizing the lamp for the preselected time duration. A sync pulse is generated at the beginning of every flash and a second pulse during the first flash in a sequence. These pulses are externally available and are communicated to other flasher units for synchronization. The unit will also synchronize to incoming sync pulses. A photocell circuit inhibits flashing during daylight periods.
REFERENCES:
patent: 3855586 (1974-12-01), Jacobs
LandOfFree
Flasher unit with synchronization and daylight control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flasher unit with synchronization and daylight control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flasher unit with synchronization and daylight control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2112549