Jacketed discharge lamp having oxidizable fail-safe switch

Details Jacketed discharge lamp having oxidizable fail-safe switch Jacketed discharge lamp having oxidizable fail-safe switch

1980-06-26

1982-11-30

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Electric switch inside evacuated or gas filled envelope

315 74, 313 25, H01J 744, H01J 1734, H01J 1978, H01J 2996

Patent

active

043617824

ABSTRACT:
A jacketed discharge lamp which would release ultraviolet radiation in the event of fracture of the outer envelope is provided with a disabling fuse link which oxidizes in the event of breakage. The link consists of an alkaline earth metal film, suitably a barium film which may be deposited on a ceramic substrate for connection into the circuit. The outer envelope is evacuated or may contain an inert gas.

REFERENCES:
patent: 4013919 (1977-03-01), Corbley
patent: 4090105 (1978-05-01), Koo
patent: 4195251 (1980-03-01), Bamberg
patent: 4205258 (1980-05-01), Ward
patent: 4208614 (1980-06-01), Strauss et al.
patent: 4233542 (1980-11-01), Oostvogels et al.

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