US PATENT SUBCLASS 313 / 590
.~.~ With shield to prevent discharge between electrodes


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

567  DF  WITH GAS OR VAPOR {24}
581  DF  .~ Three or more electrode discharge device {9}
590.~.~ With shield to prevent discharge between electrodes


DEFINITION

Classification: 313/590

With shield to prevent discharge between electrodes:

(under subclass 581) Subject matter which includes a physical barrier within the envelope to prevent the passage of an electrical discharge from one electrode to another electrode.

(1) Note. Classified here are barriers to prevent a discharge between two anodes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

609+, for baffles, partition or constricting means to control the discharge path within the discharge device.

613+, for electron shields to prevent a discharge to the electrode.