Electric lamp and discharge devices: systems – Plural load device systems – Plural discharge device loads
Patent
1976-04-15
1978-08-15
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Plural load device systems
Plural discharge device loads
315 95, 315189, 315312, H05B 4116, H05B 4146, H01G 102
Patent
active
041075811
ABSTRACT:
A non-light emitting insert for a fluorescent lighting fixture is used in place of a fluorescent lamp to complete a plural lamp ballast circuit so that the ballast is effective to illuminate properly any remaining fluorescent lamp coupled therein. The insert appears externally as a conventional fluorescent lamp including end electrical terminations that fit in the sockets of a fluorescent lighting fixture, and to an extent the insert duplicates the electrical effect of a lamp in a two lamp ballast circuit. Using the insert a reduction in the light output and a substantially corresponding reduction in consumed electrical power are achieved for a plural lamp fluorescent lighting fixture arrangement while at the same time the components of the ballast circuit are operated at reasonably normal electrical and temperature levels. Moreover, an electrically conductive rod extending between the ends of the tubular portion of the insert may be employed both to support the insert at least partially relieving the tubular portion of that function and to effect the substantial completion of the ballast circuit.
REFERENCES:
patent: 774812 (1904-11-01), Wurts
patent: 3956665 (1976-05-01), Westphal
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