Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Filament – electric heater – or resistance in shunt with the...
Patent
1974-06-24
1976-06-22
Chatmon, Jr., Saxfield
Electric lamp and discharge devices: systems
Combined load device or load device temperature modifying...
Filament, electric heater, or resistance in shunt with the...
315 60, 315 73, 315100, 200 67D, 337 85, 337 88, H01J 744, H01J 1346, H01J 1734, H01J 1978
Patent
active
039653870
ABSTRACT:
An improved thermal switch permitting large temperature excursions beyond the design closure temperature without stressing the switch material beyond its elastic limits. It combines a bimetal portion with a spring portion through which movement is transmitted, the former providing sufficient deformation for closure at design temperature, and the latter accommodating excess deformation beyond closure caused by high temperature. It is particularly useful in metal halide lamps having gas filled outer envelopes and requiring shorting of an auxiliary starting electrode to the adjacent main electrode during operation.
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Stuart Karl D.
Sulcs Juris
Wright, III P. Kennard
Chatmon, Jr. Saxfield
General Electric Company
Kempton Lawrence R.
Legree Ernest W.
Neuhauser Frank L.
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