Method of manufacturing a glow discharge starter

Details Method of manufacturing a glow discharge starter Method of manufacturing a glow discharge starter

1989-06-19

1990-07-03

Rowan, Kurt

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 55, H01J 938

Patent

active

049387278

ABSTRACT:
This invention relates to a glow discharge starter having an hermetically sealed envelope containing an ionizable medium, a bimetallic electrode including a bimetallic element having a curved portion and a free end, and a counter electrode located within the envelope. A getter holder is secured to the counter electrode and positioned adjacent the curved portion of the bimetallic element such that a first discharge gap is formed therebetween. A second discharge gap is formed between the free end of the bimetallic element and the counter electrode. The spacing of the first discharge gap is defined as being less than the spacing of the second discharge gap. A predetermined total amount of getter material is contained within the envelope including a portion thereof contained within the getter holder. Preferably, the portion of getter material contained within the getter holder is within the range of from about 25 percent to about 75 percent of the total amount of getter material. The present invention results in a glow discharge starter which has stable electrical characteristics suitable for use with higher lamp voltages and higher ambient temperatures.

REFERENCES:
patent: 2247872 (1941-07-01), Chirelstein
patent: 2321910 (1943-06-01), Hays, Jr.
patent: 3658401 (1972-04-01), Files
patent: 3728004 (1973-04-01), Waymouth

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