US PATENT SUBCLASS 313 / 248
.~.~.~ Conductive envelope supports plural electrodes

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}
248.~.~.~ Conductive envelope supports plural electrodes

DEFINITION

Classification: 313/248

(under subclass 244) Discharge devices which have at least part of the envelope formed of electrically conductive material, a plurality of electrodes or supports for a plurality of electrodes being supported by the conductive portion of the envelope wall.

SEE OR SEARCH THIS CLASS, SUBCLASS:

239+, where the discharge device is enclosed within an envelope which has a conductive wall portion, and the wall portion is disclosed or claimed as being a shield. See note 2 to the definition of subclass 239.

246+, where the conductive wall portion is claimed or disclosed as being an electrode, and supporting and/or spacing structure for a plurality of electrodes is claimed.

281, for devices under the class definition having the conductive envelope portion provided with an aperture and an electrode mounted in or around the aperture.

282, for devices under subclass 238 where the device is provided with an envelope, the electrode support being either formed of or attached to a conductive wall portion of the envelope.

SEE OR SEARCH CLASS 220, Receptacles,

2.3, for envelopes, per se, with conductive wall portions.