Fluorescent lamp unit having plural separate tubes and particula

Details Fluorescent lamp unit having plural separate tubes and particula Fluorescent lamp unit having plural separate tubes and particula

1989-02-23

1989-08-29

Groody, James J.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

315 68, 315 71, 315 73, 315 96, 315 97, 315100, 315122, 315189, 313493, H01J 6172, H01J 6130

Patent

active

048620351

ABSTRACT:
A fluorescent lamp unit comprising a self-contained assembly intended for use in replacement for a conventional incandescent filament lamp comprises two U-shaped fluorescent tubes (54, 55), each provided with filaments (56, 57) at respective ends of the arc discharge path. Lead-in wires (60, 68, 69, 76) are arranged to connect the separate arc discharge paths of the two fluorescent tubes in series, and remaining lead-in wires (61, 70, 67, 73) of the fluorescent tubes are connected to components of a starter circuit housed within the mounting (20, 22) of the lamp unit. The starter circuit preferably comprises a separate glow bottle switch (62, 71) for each fluorescent tube, and a single capacitor (65).

REFERENCES:
patent: 4208618 (1980-06-01), Heine
patent: 4383200 (1983-05-01), Van Zon et al.
patent: 4513225 (1985-04-01), Lemners et al.

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