US PATENT SUBCLASS 313 / 283
.~ Electrode supported by envelope

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}
283.~ Electrode supported by envelope {2}
284  DF  .~.~> Electrode supporting member supported by envelope {1}
291  DF  .~.~> Electrode formed by coating on envelope

DEFINITION

Classification: 313/283

(under subclass 238) Devices which have an envelope, the electrode being supported by the envelope.

(1) Note. The electrode need not be supported directly upon the envelope, but may be supported upon support rods or other support members which are supported by the enclosing envelope.

SEE OR SEARCH THIS CLASS, SUBCLASS:

239+, for devices under subclass 238 which have an envelope and a shield enclosed by the envelope, the shield being supported by the envelope.

244+, for this subject matter where the device is a discharge device and a plurality of electrodes are supported by the

envelope.

269, for this subject matter where the device includes a vibration damping means for damping vibrations of the electrode or electrode support. 270, for this subject matter where the electrode is an indirectly heated cathode.

271, for this subject matter where the electrode is a filament.

281, where the envelope has a conductive wall portion with an aperture in it, the electrode support being mounted in or around the aperture.

282, where the envelope is provided with a conductive wall portion, this electrode being supported by the conductive wall portion.