(under subclass 153) Subject matter in which at least a portion of the means for generating the magnetic field is an electrode of the lamp or discharge device.
(1) Note. Examples of the devices in this subclass are devices in which a pole face of the magnet also acts as a discharge electrode and devices in which an electrode is formed into a coil so that the current therethrough will produce a magnetic field.
SEE OR SEARCH THIS CLASS, SUBCLASS:
342, for the structure of noninductive filaments.
SEE OR SEARCH CLASS
315, Electric Lamp and Discharge Devices: Systems, 40, for lamps and discharge devices which have an electrode formed as an inductive impedance. Included in subclass 40 are "magnetrons" having plural anodes, the anodes and the connection therebetween forming "cavity resonators" (e.g., inductive impedances). Similar magnetrons will be found in subclass 42 of Class 315, where the plural anodes are connected by inductive impedances.
