Electric lamp and discharge devices – With gas or vapor – Incandescent filament lamp
Patent
1988-02-22
1989-06-13
DeMeo, Palmer C.
Electric lamp and discharge devices
With gas or vapor
Incandescent filament lamp
313279, 445 27, 445 32, H01K 124, H01K 150, H01K 306, H01K 312
Patent
active
048395595
ABSTRACT:
An electric incandescent lamp for selective radiant energy distribution is disclosed which employs a reflective film for improved efficiency of the lamp operation. Said lamp further employs a tungsten filament extending the length of its elongated lamp envelope with particular support means for said incandescent filament also being disclosed to precisely position the filament along the principal lamp axis. Various structural configurations for said particular support means are also disclosed so that such filament position is maintained regardless of the lamp spatial orientation.
REFERENCES:
patent: 2945978 (1960-07-01), Hodge
patent: 3117363 (1964-01-01), Brady et al.
patent: 3538374 (1970-11-01), Kane
patent: 3675070 (1972-07-01), Prytkov
patent: 3940650 (1976-02-01), Janssen
patent: 4509928 (1985-04-01), Morris et al.
patent: 4588923 (1986-05-01), Hoegler et al.
Ahlgren Frederic F.
Bergman Rolf S.
Davenport John M.
Hansler Richard L.
Hantman Robert G.
Corwin Stanley C.
DeMeo Palmer C.
General Electric Company
Jacob Fred
McMahon John P.
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