Device for cooling the pinch seal of an electric lamp, and an el

Details Device for cooling the pinch seal of an electric lamp, and an el Device for cooling the pinch seal of an electric lamp, and an el

1985-10-28

1987-07-07

Moore, David K.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313 25, 313 43, 313623, 313315, 362373, H01J 724, H01J 134, H01K 158

Patent

active

046789596

ABSTRACT:
The pinch seal (12) of an electric lamp (11) is kept during operation at a lower temperature by a metal envelope (10), space between this metal envelope (10) and faces of the pinch seal (12) being filled with a heat-conducting mass comprising metal fibers. A considerable temperature decrease is obtained when the spaces between the oppositely arranged major surfaces (13) of the pinch seal (12) and the metal envelope (10) are filled with metal fibers.

REFERENCES:
patent: 687883 (1901-12-01), Hewitt
patent: 3333132 (1967-07-01), Edris et al.
patent: 3602761 (1971-08-01), Kimball et al.
patent: 3983385 (1976-09-01), Troue

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