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Class Information
Number: 315/804
Name: Electric lamp and discharge devices: systems >
Description:


Sub-classes under this class:

Class Number Class Name Patents
315/1 Cathode ray tube circuits 58
315/108 Confined gas or vapor-type load device with pressure regulating means 25
315/111.01 Discharge device load with fluent material supply to the discharge space 104
315/112 With load device temperature modifier 91
315/119 With automatic shunt and/or cutout 165
315/129 With signal, indicator, or alarm 124
315/137 Polyphase a.c. supply 13
315/149 With radiant energy sensitive control means 223
315/160 Plural power supplies 58
315/177 Load device in the primary and secondary circuit of the supply transformer 21
315/178 Plural diverse-type load devices 43
315/184 Three or more load devices connected between diverse pairs of paired conductors 7
315/185R Plural series connected load devices 155
315/194 Regulation of the control current and/or potential applied to discharge control discharge device loads by phase shifting means 231
315/200R Discharge device and/or rectifier in the supply circuit 224
315/209R Periodic switch in the supply circuit 1,306
315/227R Condenser in the supply circuit 108
315/246 Pulsating or a.c. supply 326
315/288 Three or more wire distribution systems 14
315/289 Surge generator or inductance in the supply circuit 233
315/291 Current and/or voltage regulation 1,993
315/312 Plural load device systems 450
315/32 Combined load device or load device temperature modifying means and electrical circuit device structure 28
315/326 Discharge device load 76
315/359 Pyro-electric device load 2
315/360 Time-controlled 421
315/361 Plural control stations 30
315/362 Electric switch in the supply circuit 304
315/363 Miscellaneous systems 60
315/500 High energy particle accelerator tube 174
315/76 Special application 83
315/84.51 Pulse storing systems of the gaseous discharge-tube type 8
315/85 With electromagnetic wave radiation preventing or shielding means 228
315/86 Automatic substitution of the power supply 149
315/88 Automatic substitution of the load device or electrode 53
315/94 With cathode or cathode heater supply circuit 128
315/DIG.1 Fluorescent lamp circuits with more than two principle electrodes 30
315/DIG.2 High frequency starting operation for fluorescent lamp 141
315/DIG.3 Circuit for ion gauges and pressure gauges 0
315/DIG.4 Dimming circuit for fluorescent lamps 655
315/DIG.5 Starting and operating circuit for fluorescent lamp 737
315/DIG.7 Starting and control circuits for gas discharge lamp using transistors 1,107


Patents under this class:

Patent Number Title Of Patent Date Issued



 
 
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