US PATENT SUBCLASS 313 / 250
.~.~.~.~ With spacer between electrodes or electrode supports


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

238  DF  WITH SUPPORT AND/OR SPACING STRUCTURE FOR ELECTRODE AND/OR SHIELD {9}
243  DF  .~ For plural electrodes of discharge device {3}
244  DF  .~.~ Envelope supports or forms electrode {5}
249  DF  .~.~.~ Elongated envelope with electrodes spaced along length {2}
250.~.~.~.~ With spacer between electrodes or electrode supports


DEFINITION

Classification: 313/250

(under subclass 249) Devices provided with electrode spacing means interposed between different electrodes or different electrode supports.

(1) Note. For the definition of "spacer", see (2) Note to the definition of subclass 238.

SEE OR SEARCH THIS CLASS, SUBCLASS:

257+, for other discharge devices having a plurality of electrodes supported upon supporting rods, wires or tubes which are supported by the envelope of the device, the device being provided with spacing means for the electrodes or electrode supports.

285, for devices within the class definition which are provided with an envelope and which have an electrode supported by means of a plurality of support wires, rods, or tubes which are supported by the envelope, a spacer member being provided between the different electrode support wires, rods or tubes.

288, for devices within the class definition which are provided with an envelope and which have an electrode supported by means of a supporting wire, rod, or tube which is supported by the envelope, a spacer member being provided between the electrode or the electrode support and the envelope wall.