Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Multiple filament load devices
Patent
1984-05-07
1985-12-03
Dixon, Harold
Electric lamp and discharge devices: systems
Combined load device or load device temperature modifying...
Multiple filament load devices
313333, 313344, 315 64, H01J 744
Patent
active
045568227
ABSTRACT:
An improved mounting structure for a three-way incandescent lamp is disclosed. The improved mounting structure has a three-pillar stem in which the conductive leads rigidly dispose a minor and major filament within the three-way incandescent lamp. The improved mounting structure has a conductive support member in common with both the minor and the major filaments which achieves improved mounting stability of the minor and major filaments relative to prior three-way incandescent lamps. Also disclosed is a method for the improved mounting structure which simplifies the manufacturing process of the three-way incandescent lamp. Further disclosed in one embodiment is an improved mounting structure which achieves simultaneous burnout of minor and major filaments of the three-way incandescent lamp.
REFERENCES:
patent: 2862147 (1958-11-01), Conti
patent: 3131986 (1964-05-01), Edwards
patent: 3504218 (1970-03-01), Emidy
patent: 4400646 (1983-08-01), Lohrey
Cho Timothy C.
Lohrey Edwin J.
Dixon Harold
General Electric Company
Jacob Fred
McMahon John P.
Schlamp Philip L.
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