Method and apparatus for preventing reverse flow in air or gas c

Details Method and apparatus for preventing reverse flow in air or gas c Method and apparatus for preventing reverse flow in air or gas c

1992-12-31

1995-11-28

O'Shea, Sandra L.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313 35, 313 36, 362345, H01J 724, F21V 720

Patent

active

054711096

ABSTRACT:
A method and apparatus for preventing contaminated reverse flows in air or gas impingement cooled lamps. In an electrodeless lamp, a stream of clean air or gas is provided as a replacement for contaminated air.

REFERENCES:
patent: 3792230 (1974-02-01), Ray
patent: 3966308 (1976-06-01), Nilson
patent: 4402850 (1977-08-01), Ury et al.
patent: 4630182 (1986-12-01), Moroi et al.
patent: 4659757 (1987-09-01), Ury et al.
patent: 4990789 (1991-02-01), Uesaki
patent: 5021924 (1991-06-01), Kieda et al.

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