US PATENT SUBCLASS 313 / 298
.~.~.~ Plural interelectrode discharge

Current as of: June, 1999
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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

293  DF  DISCHARGING DEVICES WITH APERTURED ELECTRODE (E.G., GRID) INTERPOSED BETWEEN TWO ELECTRODES {6}
296  DF  .~ Plural interposed apertured electrodes {2}
297  DF  .~.~ Serially arranged {3}
298.~.~.~ Plural interelectrode discharge

DEFINITION

Classification: 313/298

(under subclass 297) Discharge devices which are provided with either a plurality of separate cathode or a plurality of separate nonemissive electrodes (e.g., anodes) in addition to the interposed apertured or grid-like electrodes, so that the discharge device has at least two separate inter-electrode spaces, at least two apertured or grid-like electrodes being interposed in one of the inter-electrode spaces in superimposed relation with respect to each other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5+, for plural unit discharge devices which have at least two cathodes and an anode for each of the cathodes, at least one of the discharge devices having a plurality of serially arranged apertured or grid-like electrodes interposed in the inter-electrode space.

301, for other discharge devices which are provided with a plurality of inter-electrode spaces, at least two of the inter-electrode spaces having an apertured or grid-like electrode disposed therein, or at least one of the inter-electrode spaces having a plurality of apertured or grid-like electrodes in nonsuperimposed relation.