Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Delayed application of the discharge potential
Reexamination Certificate
2005-06-14
2005-06-14
Vu, David (Department: 2828)
Electric lamp and discharge devices: systems
With cathode or cathode heater supply circuit
Delayed application of the discharge potential
C315S105000, C315S106000
Reexamination Certificate
active
06906468
ABSTRACT:
The invention relates to a novel ballast device for pre-heating, starting and operating at least one UV emitter, constructed in the form of a gas discharge lamp with two heating coils lying opposite each other in relation to a gas discharge path, whereby four electrical connections are provided in total for each of such gas discharge paths, namely two for each heating coil. According to the invention, switching means are provided for a parallel switching of both of said connectors of a heating coil, dependent upon operating conditions. A capacitive loading of the ballast device is thus avoided by means of the otherwise open connector line for the heating coil and the current feed to the coils is evenly distributed.
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Fischer Joachim
Riepe Dirk
Rudkowski Jan Boris
Becker Robert W
Robert W Becker & Associates
Vu David
Wedeco AG Water Technology
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