Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
Patent
1990-10-12
1991-10-15
Mis, David
Electric lamp and discharge devices: systems
With cathode or cathode heater supply circuit
Pulsating or a.c. supply to the cathode or heater circuit
315107, 200 1A, 200283, 355196, H05B 4100, H01H 128
Patent
active
050577468
ABSTRACT:
A three pole relay is shown which operates in response to the flow of normal operating current across fluorescent lamps to energize a coil which actuates a relay to open switches disposed in all of the filament lines associated with the lamp to shut off filament current while maintaining current flow across the lamps themselves.
REFERENCES:
patent: 3671701 (1972-06-01), Bellmann
Carlos Mark C.
Kleven Lawrence P.
Haug John A.
McAndrews James P.
Mis David
Sharp Melvin
Texas Instruments Incorporated
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