Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Plural circuit elements
Patent
1981-11-04
1983-11-08
Smith, Alfred E.
Electric lamp and discharge devices: systems
Combined load device or load device temperature modifying...
Plural circuit elements
315 56, 315 57, H01J 744, H01J 1346, H01J 1734, H01J 1978, H01J 2316, H01J 2996, H01K 162
Patent
active
044144890
ABSTRACT:
A single-ended compact fluorescent lamp having an envelope that is partitioned or of multi-U-bent shape and defines a tortuous arc path is combined with a plug-in ballast module which is elongated in a lateral direction but has a low profile and a narrow width. The resulting decrease in the overall height dimension of the unit formed by the mated lamp and module, together with the narrow width of the module, permit the unit to fit within the harp component of a table lamp or similar lighting fixture and be used as a replacement for an incandescent lamp. The screw-in socket of the lamp fixture is provided with a threaded adapter plug which enables the lamp-ballast unit to be plugged into the adapter after it has been inserted between the spaced support rods of the harp component. Alternatively, the threaded plug is made a part of the module and constitutes an integral threaded base member which permits the lamp-ballast unit to be screwed directly into the fixture socket after the harp component has been temporarily removed.
REFERENCES:
patent: 3551736 (1970-12-01), Doehner
patent: 3815080 (1974-06-01), Summa
patent: 3953761 (1976-04-01), Giudice
patent: 4173730 (1979-11-01), Young et al.
patent: 4318160 (1982-03-01), Dooley et al.
North American Philips Electric Corp.
Smith Alfred E.
Wise Robert E.
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