.~> Electrode or electrode support includes material
DEFINITION
Classification: 313/564
HAVING VAPOR GENERATING MATERIAL:
(under the class definition) Subject matter which includes an envelope for an electric lamp or discharge device, at least an electrode and a substance capable of being vaporized within the envelope.
(1) Note. A vapor is the gasified state of a liquid or a solid material.
(2) Note. No electrical heating means is claimed to change the substance from a solid or a liquid to a vapor. See subclass 550 for heating means to heat vapor generating material. In this subclass the heat evolved in the operation of the tube changes the vaporizable substance to a vapor.
(3) Note. The subcombination of an envelope of a lamp or discharge device and a material capable of being vaporized is here in the absence of a class to take the subcombination.
SEE OR SEARCH THIS CLASS, SUBCLASS:
550, for a lamp or discharge device having electrical heating means to vaporize material.
554, for temperature or pressure control of a gas or vapor.
555, for a lamp or discharge device having a getter which is a vapor generating material. 571, for a lamp or discharge device envelope with a gas or vapor fill.
SEE OR SEARCH CLASS
361, Electricity: Electrical Systems and Devices,
2+, particularly 14 for arc blowout for main breaker contact by means of a fluid or gas and subclass 121 for high voltage dissipation by means of a fluid.
