Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Plural load device systems
Patent
1989-02-27
1990-03-27
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
With cathode or cathode heater supply circuit
Plural load device systems
315250, 315312, 315324, 315363, 315121, 315122, 315227R, 315228, H05B 3900, H05B 4114, H05B 4116, H05B 4124
Patent
active
049123718
ABSTRACT:
An improved non-lighting fluorescent lamp substitute to replace one lamp in a two-lamp series connected circuit so that the circuit is completed through the remaining lamp allowing it to light, whereas without the lamp substitute, the circuit is incomplete if one lamp is removed and then the other lamp is unable to light. In one form, the device is wired into a light fixture, while in another form, it looks like a conventional fluorescent lamp and fits into the sockets of the fixture. Either form cuts power consumption substantially in half with a corresponding reduction in light output. The improvement is a triac in the device that limits the magnitude of the effective arc current by phase angle control to the original design current of the lamp and ballast in order to achieve the normally expected life of the lamp and ballast. Electrical insulation is provided on the tips of the bi-pin terminals to reduce shock hazard to installers, and in one species, a twin-triac arrangement eliminates any possibility of shock to an installer.
REFERENCES:
patent: 2680236 (1954-06-01), Kuebler
patent: 2774917 (1956-12-01), Passmore
patent: 3727104 (1973-04-01), Neal et al.
patent: 3956665 (1976-05-01), Westphal
patent: 3993386 (1976-11-01), Rowe
patent: 4053811 (1977-10-01), Abernethy
patent: 4102558 (1978-07-01), Krachman
patent: 4211958 (1980-07-01), Bickford et al.
patent: 4255692 (1981-03-01), Burgess
patent: 4348614 (1982-09-01), Burgess
patent: 4475064 (1984-10-01), Burgess
patent: 4736138 (1988-04-01), Masaki
LaRoche Eugene R.
Shingleton Michael B.
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