US PATENT SUBCLASS 313 / 258-- .~.~.~.~.~ Spacer between envelope and support or electrode

US PATENT SUBCLASS 313 / 258
.~.~.~.~.~ Spacer between envelope and support or electrode

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}
252	DF	.~.~.~ Support structure supported by the envelope {7}
257	DF	.~.~.~.~ With spacer between electrode or electrode supports {4}
258		.~.~.~.~.~ Spacer between envelope and support or electrode

DEFINITION

Classification: 313/258

(under subclass 257) Discharge devices having a spacer member interposed between the envelope of the discharge device and an electrode or an electrode support.

(1) Note. The spacer member which engages the envelope may

be the same spacer member which it interposed between the different electrodes or electrode supports, or it may be a spacer member in addition to the inter-electrode or inter-electrode support spacer.

SEE OR SEARCH THIS CLASS, SUBCLASS:

288, for devices under the class definition which have an envelope and an electrode within the envelope supported by a wire, rod or tube which is supported by the envelope, a spacer member being interposed between the envelope and the electrode or electrode support.