Electric lamp and discharge devices: systems – Discharge device load
Patent
1977-04-29
1981-04-07
Smith, Alfred E.
Electric lamp and discharge devices: systems
Discharge device load
313174, H01J 1104, F04B 3702
Patent
active
042609348
ABSTRACT:
The invention relates to an electric device provided with a switch which is constructed as a discharge tube which comprises at least two main electrodes and a reversible hydrogen getter.
According to the invention the discharge tube contains a rare gas so that the current flow in the conducting state of the switch is mainly ensured by that rare gas. The non-conducting stage of the switch can be obtained by heating the getter. Namely, the hydrogen pressure in the discharge tube then becomes so high that the discharge in the tube is extinguished. Heating of the getter is preferably effected by the heat developed by the current between the main electrodes. This results in a self extinguishing breakdown element.
REFERENCES:
patent: 3758803 (1973-09-01), Cook et al.
patent: 3953755 (1976-04-01), Kuus et al.
De Vaan Robertus L. C.
Jacobs Cornelis A. J.
Kuus Gijsbert
Smulders Herman A. G. S.
Smith Alfred E.
Smith Robert S.
U.S. Philips Corporation
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