(under subclass 567) Subject matter wherein a structural detail of the envelope is significantly recited.
SEE OR SEARCH THIS CLASS, SUBCLASS:
25+, for means in the space between the envelope walls for modifying the temperature of the lamp or discharge device.
33, for an envelope provided with an internal temperature modifying baffle.
34, for an envelope provided with a condensing chamber or surface to cool the gas or vapor within the envelope.
44, for means to modify the temperature of the device (e.g., heat radiating means, etc..).
110+, for optical means (e.g., lens, etc..) to modify the ray energy passing through the envelope wall, see subclass 112 where the optical means is a polarizer, or filter, subclass 113 where the optical means is a reflector, subclass 116 where the envelope wall is light diffusing, and subclass 117 where the optical means is a light valve or light obscuring means.
168, for liquid electrode (e.g., mercury) discharge devices having a plurality of anodes, the envelope being provided with separate anode chambers. 317, for a lamp or discharge device envelope with an electrode or filament or where there is some significance in the use of the envelope in a lamp or discharge device.
515, for a lamp or discharge device with character display having a character shaped envelope.
547, for valve means for introducing a gas or vapor into or
withdrawing a gas or vapor from the envelope.
567, for a lamp of discharge device envelope with a gas or vapor.
577, for a lamp or discharge device having particular total or partial gas or vapor pressure having an envelope detail.
609+, for a discharge device having a baffle, partition or constricting means affecting discharge.
623+, for discharge device having lead-in wire, electrode support or electrode sealed to envelope including envelope end seals.
636, for envelope compositions.
SEE OR SEARCH CLASS
174, Electricity: Conductors and Insulators,
17+, for boxes and housings filled with a fluid and subclasses 50+ for boxes and housings with electrical features not restricted for use in a lamp or discharge device. 206, Special Receptacle or Package,
0.6+, for gas containers.
220, Receptacles,
2.1+, for an envelope of an electric lamp or similar device.
