Gas discharge tube having electrodes with chemically inert surface
AssigneeJensen Devices AB
InventorsMats Boman, Jan-Åke Nilsson, Kjell Öhman, Johan Schleimann-Jensen
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Abstract
A new gas discharge tube with end electrodes having chemically inert surfaces is disclosed. As the surfaces are resistant to the build-up of layers, such as oxide layers, a discharge tube according to the invention exhibits higher selectivity and better performance (e.g. higher heat-resistance and longer life-cycle time) than prior art devices, simultaneously as it offers an environmentally acceptable solution.
Claims19
Gas discharge tube comprising at least two electrodes and at least one hollow insulator fastened to at least one of the electrodes, wherein said at least two electrodes have a chemically inert surface, and wherein the chemically inert surface has been applied to the electrodes using a physical vapour deposition or a chemical vapour deposition of coating material.
Method for the manufacture of gas discharge tubes comprising at least two electrodes, and at least one hollow insulator fastened to the electrodes, wherein said at least two electrodes have a chemically inert surface, said method comprising the step of applying a coating material to form the chemically inert surface onto the electrodes using a physical vapour deposition or a chemical vapour deposition process.
Dependencies are inferred from the claim text.