(under the class definition) Subject matter provided with two or more principal electrodes and an auxiliary starting electrode, the starting electrode being connected in the discharge circuit and placed with respect to one of the principal electrodes so that the discharge is initiated between the principal electrode, and the starting electrode, the discharge then being transferred to the other principal electrode, the starting electrode then being either deenergized or removed from the discharge space so that the discharge is maintained only between the principal electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1, for consumable electrode discharge devices having three or more electrodes wherein the discharge is initiated between two of the electrodes, and is maintained between these electrodes until at least one of the electrodes consumed and/or fails to maintain the discharge, the discharge then being shifted to another electrode or to other electrodes.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices,
591, 603 for miscellaneous discharge devices which are provided with an envelope containing an atmosphere of gas or
vapor and which have an auxiliary staring electrode, and subclass 306 for miscellaneous discharge devices which are provided with three or more electrodes one of which may be an auxiliary starting electrode. 315, Electric Lamp and Discharge Devices: Systems,
335, and indented subclass, and the subclasses specified in the notes to the definitions of those subclasses, for miscellaneous systems for supplying electric current and/or potentials to electric space discharge devices of the gas or vapor ionization type, the discharge device being provided with an auxiliary starting electrode.
