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Class Information
Number: 315/92
Name: Electric lamp and discharge devices: systems > Automatic substitution of the load device or electrode > Diverse-type load device or electrode substituted
Description: Systems wherein the load device or electrode which is substituted for the first operated load device or electrode is of a diverse type.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7282863 |
Auxiliary quartz lamp lighting system for electronic high intensity discharge lamp ballasts |
Oct. 16, 2007 |
| 7109659 |
High-intensity discharge lamp ballast and method for operating high-intensity discharge lamp |
Sep. 19, 2006 |
| 6476559 |
Ceremonial luminary and associated process |
Nov. 5, 2002 |
| 6072286 |
Auxiliary lighting control circuit and method for a HID lamp lighting system |
Jun. 6, 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 |
| 5175469 |
Combination including an emergency lighting arrangement |
Dec. 29, 1992 |
| 5115165 |
Safety lighting means for use with a high intensity discharge lamp |
May. 19, 1992 |
| 4862038 |
Automatic relamping system |
Aug. 29, 1989 |
| 4727449 |
Filament bypass circuit |
Feb. 23, 1988 |
| 4560906 |
Lighting system and compact electric lighting unit |
Dec. 24, 1985 |
| 4550272 |
Operating circuit for electric discharge lamp |
Oct. 29, 1985 |
| 4486689 |
Emergency lighting apparatus and systems |
Dec. 4, 1984 |
| 4464607 |
Lighting unit |
Aug. 7, 1984 |
| 4451762 |
Control circuit and system for providing emergency lighting |
May. 29, 1984 |
| 4438369 |
Unitary light source comprising compact HID lamp and incandescent ballast filament |
Mar. 20, 1984 |
| 4410835 |
Utility emergency lamp and solid state switching and battery charging circuit therefor |
Oct. 18, 1983 |
| 4399392 |
Arc lamp power supply |
Aug. 16, 1983 |
| 4392081 |
Lighting unit |
Jul. 5, 1983 |
| 4350930 |
Lighting unit |
Sep. 21, 1982 |
| 4323821 |
Luminaire converter |
Apr. 6, 1982 |
| 4278916 |
Instant-on light source |
Jul. 14, 1981 |
| 4236100 |
Lighting circuits |
Nov. 25, 1980 |
| 4232252 |
Lighting network including a gas discharge lamp and standby lamp |
Nov. 4, 1980 |
| 4151445 |
Instant light lamp control circuit |
Apr. 24, 1979 |
| 4134043 |
Lighting circuits |
Jan. 9, 1979 |
| 4099095 |
Operating circuit for gaseous discharge and incandescent lamps |
Jul. 4, 1978 |
| 4091307 |
Emergency lighting system for gaseous-discharge lamps |
May. 23, 1978 |
| 4047076 |
Emergency lighting system for gaseous discharge lamps |
Sep. 6, 1977 |
| 4005331 |
High intensity discharge lamp with auxiliary light |
Jan. 25, 1977 |
| 3976910 |
Operating circuit for discharge lamps with voltage starting circuit and auxiliary lighting means therefor |
Aug. 24, 1976 |
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