Electric lamp and discharge devices – With gas or vapor – Incandescent filament lamp
Patent
1983-08-01
1985-08-13
Kellogg, Arthur
Electric lamp and discharge devices
With gas or vapor
Incandescent filament lamp
313573, 313580, 313255, 313635, H01J 502, H01K 132
Patent
active
045352690
ABSTRACT:
A general service incandescent lamp having a tungsten filament, an improved inner shaped bulb and a temperature resistant infrared reflective film on the outer surface of the inner bulb is disclosed. The inner bulb has an ellipsoidal shape which cooperates with the tungsten filament and infrared film to provide a highly efficient incandescent lamp.
REFERENCES:
patent: Re30832 (1981-12-01), La Giusa
patent: 1252372 (1918-01-01), Darrah
Bergman Rolf S.
Tschetter Charles D.
General Electric Company
Jacob Fred
Kellogg Arthur
McMahon J. P.
Schlamp Philip L.
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