Tungsten-halogen electric lamp with permeable means closing an o

Details Tungsten-halogen electric lamp with permeable means closing an o Tungsten-halogen electric lamp with permeable means closing an o

1986-05-12

1987-08-18

DeMeo, Palmer C.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313579, 313318, H01J 554, H01K 146

Patent

active

046879633

ABSTRACT:
A tungsten-halogen electric lamp having permeable means closing an outer envelope. Such non-hermetic means may be relatively free-breathing or weather-tight. Tungsten-halogen lamps with permeable means may be manufactured more simply and economically than those currently available.

REFERENCES:
patent: 2406271 (1946-08-01), Van Horn
patent: 3175117 (1965-03-01), Kardos
patent: 3188227 (1965-06-01), Vodicka et al.
patent: 3243634 (1966-03-01), Mosby
patent: 3355612 (1967-11-01), Peek, Jr.
patent: 3591793 (1971-07-01), McKim
patent: 3959684 (1976-05-01), Anderson et al.
patent: 4074165 (1978-02-01), Moriyama

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