IPC 7 English version H05B 7/00-H05B 43/02

IPC ⁷ English version

H05 - H05B 6/80

H05B00700-H05B04302

SECTION H – ELECTRICITY

H 05

ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

H 05 B

ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR (apparatus for special application, see the relevant places, e.g. A47J, B21J, B21K, C21, C22, C23, F21, F24, F27)

Heating by electric discharge (electron beam or ion beam tubes for localised treatment of objects H01J 37/30; plasma torches H05H 1/26)

Details

Electrodes

designed to melt in use [2]

non-consumable [2]

085

mainly consisting of carbon [2]

Self-baking electrodes [2]

Mountings, supports, terminals, or arrangements for feeding or guiding electrodes [2]

101

Mountings, supports, or terminals at head of electrode, i.e. at the end remote from the arc [2]

102

specially adapted for consumable electrodes [2]

103

Mountings, supports, or terminals with jaws (H05B 7/101 takes precedence) [2]

105

comprising more than two jaws equally spaced along circumference, e.g. ring holders [2]

107

specially adapted for self-baking electrodes [2]

109

Feeding arrangements (H05B 7/107 takes precedence; where the electrode movement is a part of a closed loop for automatic control of power H05B 7/148) [2]

Arrangements for conducting current to the electrode terminals (non-insulated conductors or conductive bodies in general H01B 5/00; insulated conductors or cables in general H01B 7/00) [2]

Arrangements for cooling, sealing, or protecting electrodes [2]

Arrangements or methods for connecting successive electrode sections [2]

144

Power supplies specially adapted for heating by electric discharge; Automatic control of power, e.g. by positioning of electrodes (circuit arrangements for supplying electric power in general H02J) [2]

148

Automatic control of power (electrode feeding arrangements H05B 7/109; automatic feeding or moving of electrodes for spot or seam welding or cutting B23K 9/12; disposition of electrodes in or on furnaces F27D 11/10; control of position in general G05D 3/00; regulating electric characteristics of arcs in general G05F 1/02; regulating electric power in general G05F 1/66) [2]

152

by electromechanical means for positioning of electrodes [2]

156

by hydraulic or pneumatic means for positioning of electrodes [2]

Heating by glow discharge

Heating by arc discharge

Direct heating by arc discharge, i.e. where at least one end of the arc directly acts on the material to be heated, including additional resistance heating by arc current flowing through the material to be heated [2]

Indirect heating by arc discharge [2]

11/

Heating by combined application of processes covered by two or more of groups H05B 3/00 to H05B 7/00 (H05B 7/20 takes precedence)

Lighting

31/

Electric arc lamps (regulating electric characteristics of arcs G05F 1/02; with non-consumable electrodes H01J 61/00)

31/

Details

31/

Housings

31/

Electrodes

31/

Carbon electrodes

31/

Cored carbon electrodes

31/

Beck-effect electrodes

31/

Metal electrodes

31/

Apparatus or processes specially adapted for manufacturing electrodes

31/

Mountings for electrodes; Electrode feeding devices

31/

Mechanical arrangements for feeding electrodes

31/

Electromagnetic arrangements for feeding electrodes

31/

Cooling arrangements

31/

Influencing the shape of arc discharge by gas blowing devices

31/

Influencing the shape of arc discharge by magnetic means

31/

Starting; Igniting

31/

Switching-off

31/

Indicating consumption of electrodes

31/

having two electrodes in line

31/

specially adapted for ac

31/

having two electrodes at an angle

31/

specially adapted for ac

31/

having two parallel electrodes

31/

specially adapted for ac

31/

having more than two electrodes

31/

specially adapted for ac

31/

electrodes energised from different phases of the supply

33/

Electroluminescent light sources (discharge lamps H01J 61/00 to H01J 65/00; semi-conductor devices with at least one particular jump barrier or surface barrier adapted for light emission H01L 33/00; compositions per se, see the relevant subclasses)

33/

Details

33/

Sealing arrangements

33/

Electrode terminals

33/

Circuit arrangements not adapted to a particular application

33/

Apparatus or processes specially adapted to the manufacture of electroluminescent light sources

33/

Light sources with substantially two-dimensional radiating surfaces

33/

characterised by the chemical or physical composition or the arrangement of the electroluminescent material

33/

characterised by the nature or concentration of the activator

33/

characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded

33/

characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers

33/

of metallic reflective layers (H05B 33/26 takes precedence)

33/

characterised by the composition or arrangement of the conductive material used as an electrode

33/

of translucent electrodes

35/

Electric light sources using a combination of different types of light generation

37/

Circuit arrangements for electric light sources in general

37/

Controlling

37/

Detecting lamp failure

37/

Circuits providing for substitution of the light source in case of its failure

39/

Circuit arrangements or apparatus for operating incandescent light sources and not adapted to a particular application

39/

Switching-on, e.g. with predetermined rate of increase of lighting current

39/

Controlling

39/

Switching arrangements, e.g. from series operation to parallel operation

39/

by shifting phase of trigger voltage applied to gas-filled controlling tubes

39/

in which the lamp is fed by pulses

39/

Circuits providing for substitution of the light source in case of its failure

41/

Circuit arrangements or apparatus for igniting or operating discharge lamps

41/

Details

41/

Starting switches

41/

thermal only

41/

heated by glow discharge

41/

magnetic only

41/

combined thermal and magnetic

41/

Circuit arrangements

41/

in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac (H05B 41/26 takes precedence)

41/

having a starting switch

41/

for lamps having an auxiliary starting electrode

41/

having no starting switch

41/

for lamps having an auxiliary starting electrode

41/

for lamps not having an auxiliary starting electrode

41/

231

for high-pressure lamps

41/

232

for low-pressure lamps

41/

233

using resonance circuitry

41/

234

to eliminate stroboscopic effects, e.g. feeding two lamps with different phases

41/

in which the lamp is fed by high-frequency ac (H05B 41/26 takes precedence)

41/

in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc

41/

using static converters

41/

282

with semiconductor devices (H05B 41/288, H05B 41/295 take precedence) [7]

41/

285

Arrangements for protecting lamps or circuits against abnormal operating conditions [7]

41/

288

with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps [7]

41/

(transferred to H05B 41/282 to H05B 41/295)

41/

292

Arrangements for protecting lamps or circuits against abnormal operating conditions [7]

41/

295

with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps [7]

41/

298

Arrangements for protecting lamps or circuits against abnormal operating conditions [7]

41/

in which the lamp is fed by pulses, e.g. flash lamp

41/

for single flash operation

41/

to provide a sequence of flashes

41/

Controlling

41/

Controlling the intensity of light

41/

continuously

41/

391

using saturable magnetic devices

41/

392

using semiconductor devices, e.g. thyristor

41/

discontinuously

41/

in two steps only

41/

for providing special optical effects, e.g. progressive motion of light

41/

Circuits providing for substitution in case of failure of the lamp

43/

Circuit arrangements for light sources, not otherwise provided for (H05B 37/00 takes precedence)

43/

for light sources using a charge of combustible material

H05 - H05B 6/80