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Class Information
Number: 315/93
Name: Electric lamp and discharge devices: systems > Automatic substitution of the load device or electrode > With current shifting switch
Description: Systems having an electric switch which is automatically operated in response to the failure of the first operated load device or electrode to complete the circuit to the second operated load device or electrode.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6118371 |
Adaptive vehicle lighting control system |
Sep. 12, 2000 |
| 5955945 |
Fail safe system for providing warning signals upon the failure of motorcycle brake or tail lights |
Sep. 21, 1999 |
| 5430354 |
HID lamp and auxiliary lamp ballast using a single multiple function switch |
Jul. 4, 1995 |
| 5256946 |
Gaseous discharge lamp system with auxiliary lamp |
Oct. 26, 1993 |
| 5216328 |
Vehicle lighting system |
Jun. 1, 1993 |
| 5061879 |
Dual filament lamp control system |
Oct. 29, 1991 |
| 5012157 |
Long-life luminaires |
Apr. 30, 1991 |
| 4998042 |
Self-relamping clearance/marker light assembly |
Mar. 5, 1991 |
| 4712051 |
Adapter for switching from primary to standby device upon failure of primary device |
Dec. 8, 1987 |
| 4503488 |
Multiple headlamp system |
Mar. 5, 1985 |
| 4495444 |
Vehicle lighting system |
Jan. 22, 1985 |
| 4461974 |
Dual light source |
Jul. 24, 1984 |
| 4382209 |
Thermal switch and dual filament long life lamp |
May. 3, 1983 |
| 4380718 |
Trailer marker light substitution circuit |
Apr. 19, 1983 |
| 4213075 |
Safety circuit for electrical loads |
Jul. 15, 1980 |
| 4104560 |
Lighting system for a motor vehicle |
Aug. 1, 1978 |
| 4091307 |
Emergency lighting system for gaseous-discharge lamps |
May. 23, 1978 |
| 4034259 |
Spare lamp control circuit for a light projection system |
Jul. 5, 1977 |
| 4005331 |
High intensity discharge lamp with auxiliary light |
Jan. 25, 1977 |
| 3999099 |
Electrical receptacle device with main lamp and thermostatically-controlled auxiliary lamp sockets |
Dec. 21, 1976 |
| 3968395 |
Two filament electric bulb traffic light |
Jul. 6, 1976 |
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