H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/11, 315/28,
H01J 61/32 (2006.01) H01J 61/34 (2006.01)
Patent
CA 1141417
48, 242 ABSTRACT OF THE DISCLOSURE A fluorescent lamp having a triple-U-bent tubu- lar envelope is combined with circuit means, a translucent protective cover and a threaded base member to provide an efficient screw-in type lamp unit of high brightness and long life that is compact enough to be used as a direct replacement for incandescent type lamps in fixtures de- signed for residential and commercial lighting. Various structural arrangements for including the ballast and starter components of the energizing circuit as integral parts of the compact lamp unit, despite the stringent space limitations, and also venting the cover and base structures to provide convection cooling of the compacted electrical components are also disclosed. Additional cost-saving advantages are afforded by making the triple- U-bent fluorescent lamp a plug-in type component that can be readily removed from the lamp unit and replaced with a new fluorescent lamp, thus permitting the lamp unit to be retained as a permanent part of the lighting fixture and be periodically relamped at minimal expense as required to maintain the optimum amount of illumination from the electrical energy which is consumed.
364169
Morton Edward W.
Skwirut Henry
Young Robert G.
Mcconnell And Fox
Westinghouse Electric Corporation
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