System for filling and venting of run-in gas into vacuum tubes

Details System for filling and venting of run-in gas into vacuum tubes System for filling and venting of run-in gas into vacuum tubes

2011-01-18

2011-01-18

Santiago, Mariceli (Department: 2879)

Electric lamp or space discharge component or device manufacturi

Process

Including evacuating, degasifying or getter or fluent...

C445S038000, C445S070000, C445S073000, C445S006000, C141S004000, C141S007000, C141S065000, C141S066000

Reexamination Certificate

active

07871303

ABSTRACT:
Heavier noble gases such as xenon and argon can reduce the run-in period for vacuum tubes and in particular flame detector tubes. The tubes can be filled with a run-in gas and then run-in. The run-in gas can then be exchanged for an end gas, such as neon, and the tube sealed. A final conditioning step of running in the tube with the end gas can further smooth the tube's anode and cathode to thereby improve performance and operating life.

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