Circular fluorescent lamp with improved housing containing balla

Details Circular fluorescent lamp with improved housing containing balla Circular fluorescent lamp with improved housing containing balla

1981-03-26

1983-10-18

Dixon, Harold A.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

315 62, 315 71, 362216, 362260, H01J 744

Patent

active

044108346

ABSTRACT:
A circular fluorescent lamp unit comprises a circular tubular fluorescent mp; a housing secured inside the space formed by the circular fluorescent lamp, the housing containing the ballast and starting device; and a base for connection to a supply voltage, the base being connected to the housing concentrically with the circular fluorescent lamp. The improvement resides in that the housing is an elongate hollow body which extends diametrically across the space defined by the circular fluorescent lamp; the housing having one end for enclosing the ends of the circular fluorescent lamp and another end for taking support against the wall of the circular fluorescent lamp which is diametrically opposite to the ends of the circular fluorescent lamp. In a preferred embodiment, the housing comprises two interconnected form locking housing cup-shaped members.

REFERENCES:
patent: 2492764 (1949-12-01), Pistey
patent: 2623346 (1953-01-01), Stoller
patent: 2652483 (1953-09-01), Laidig et al.
patent: 2697777 (1954-12-01), Rosa
patent: 2769083 (1956-10-01), Archer
patent: 2817004 (1957-12-01), Baumgartner et al.
patent: 3059137 (1962-10-01), Reaves
patent: 4109303 (1978-08-01), Hetherington
patent: 4225905 (1980-09-01), Moriyama et al.
patent: 4282563 (1981-08-01), Ohta et al.

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