Electric lamp and discharge devices – With temperature modifier – Double wall – jacket or casing for envelope
Patent
1988-12-21
1990-07-31
Wieder, Kenneth
Electric lamp and discharge devices
With temperature modifier
Double wall, jacket or casing for envelope
313623, 313634, 313 26, H01J 6134
Patent
active
049452886
ABSTRACT:
A double jacket arc lamp is disclosed. A double jacket arc lamp may be formed with an electric lamp capsule having an inner light transmissive envelope with electrical lead extending from the inner envelope through a first seal, and a second light transmissive envelope sealed to the inner envelope at a second seal to substantially surround the electric lamp capsule and form an enclosed volume between a portion of the exterior of the inner envelope and the interior of the outer envelope, and leaving the leads unenclosed by the outer envelope. The lamp leads then pass through only one seal, and have no portions exposed in the intermediate insulating volume. The inner capsule is then aligned once, while still being for the most part protected by a double envelope.
REFERENCES:
patent: 3194625 (1965-07-01), Danko
patent: 4490642 (1984-12-01), Dobrusskin et al.
Kendrick George B.
Martin Michael L.
Morris Merle E.
Neff Louis D.
GTE Products Corporation
Meyer William E.
Wieder Kenneth
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