Communications: electrical – Digital comparator systems
Patent
1975-12-05
1976-12-21
Caldwell, John W.
Communications: electrical
Digital comparator systems
340 84, 339166R, 330119R, 200307, 317117, 240 73QD, 46 25, E01F 900
Patent
active
039991601
ABSTRACT:
Traffic signal apparatus in which individual signal units are of modular construction and include complementary structure for direct mechanical and electrical interconnection with like signal units, or with a mounting member for supporting an array of interconnected signal units. Each individual signal unit is prewired, and all necessary wiring interconnections for an interconnected array of individual signal units are accomplished by electrical connectors which mate as the individual signal units are mechanically interconnected with each other. Each signal unit includes a lamp socket assembly which is readily connectable to the prewiring, so that any desired signal circuit can be selected for each signal unit. The lamp socket assemblies are adjustable to permit proper orientation of lamp filaments. The disclosed interconnectable individual signal units are intended for plug-in assembly to form desired traffic signal arrays which require no wiring, apart from electrical interconnection with a conventional source of traffic control signals.
REFERENCES:
patent: 2401171 (1946-05-01), Leppert
patent: 2784388 (1957-03-01), King et al.
patent: 3484984 (1969-12-01), Fischer
patent: 3594689 (1971-07-01), Hopt et al.
patent: 3696548 (1972-10-01), Teller
patent: 3706070 (1972-12-01), Eikenberry
Caldwell John W.
Crosland Donnie L.
LandOfFree
Modular traffic signal apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modular traffic signal apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modular traffic signal apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1841971