(under subclass 581) Subject matter wherein there is a plurality of the same type of anode or cathode and an electrode of the opposite type, conduction of the gas or vapor when ionzed between the electrode of the opposite type and one of the plurality of the same type electrodes can be shifted to another electrode of the plurality of the same type electrodes and the same electrode of the opposite type whereby the tube can function as counter, indicator or a switching tube.
(1) Note. The envelope may or may not be transmissive to the light caused by the ionization of the gas or vapor in the operation of the tube.
SEE OR SEARCH CLASS
315, Electric Lamp and Discharge Devices: Systems,
84.61, for pulse storing systems of the gaseous discharge tube type having plural cathode or anodes and subclass 169.2 for a plural power supply to a plural cathode and/or anode load device having diverse type energizing or bias supplies to different electrodes including shifting, of register, counter or display.
377, Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems,
103, for counting or dividing chains using gas filled tubes.
