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Class Information
Number: 362/20
Name: Illumination > Automatic substitution of power supply or light source
Description: Subject matter having either (1) one energy source and first and second light sources and means to supply energy from the energy source to the second light source in response to failure of the first light source; or (2) first and second energy sources and one light source and means to cause the second energy source to supply energy to the light source in response to failure of the first energy source; or (3) first and second energy sources and first and second light sources and means to cause the second energy source to supply energy to the second light source in response to failure of either the first energy source or the first light source.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7311423 |
Adjustable LED luminaire |
Dec. 25, 2007 |
| 7296908 |
Housing with releasable front and back portions with electrical connection means |
Nov. 20, 2007 |
| 7273290 |
Display device having automated lamp replacement |
Sep. 25, 2007 |
| 7244036 |
Vehicular lamp |
Jul. 17, 2007 |
| 7241021 |
Emergency information lighting system |
Jul. 10, 2007 |
| 7220010 |
Emergency light |
May. 22, 2007 |
| 7220014 |
Quick mounting system for emergency lighting device |
May. 22, 2007 |
| 7215084 |
Power control arrangement, as for a flashlight |
May. 8, 2007 |
| 7213941 |
Flexible perimeter lighting apparatus |
May. 8, 2007 |
| 7163312 |
Spotlight system and method |
Jan. 16, 2007 |
| 7118235 |
Concealed safety lighting device |
Oct. 10, 2006 |
| 7109659 |
High-intensity discharge lamp ballast and method for operating high-intensity discharge lamp |
Sep. 19, 2006 |
| 7086747 |
Low-voltage lighting apparatus for satisfying after-hours lighting requirements, emergency lighting requirements, and low light requirements |
Aug. 8, 2006 |
| 7040773 |
Self contained and powered traffic signal using natural and artificial light |
May. 9, 2006 |
| 7036961 |
Recessed lighting fixture with battery backup |
May. 2, 2006 |
| 6994448 |
Solar powered illuminated devices |
Feb. 7, 2006 |
| 6989759 |
Lighting system |
Jan. 24, 2006 |
| 6986589 |
Apparatus and methods for providing an emergency lighting augmentation system |
Jan. 17, 2006 |
| 6987363 |
Emergency ballast for compact fluorescent lamp with battery heater |
Jan. 17, 2006 |
| 6933678 |
Emergency lighting function illumination appliance |
Aug. 23, 2005 |
| 6929381 |
Solar powered electric candle |
Aug. 16, 2005 |
| 6929376 |
Systems, devices and methods for lighting |
Aug. 16, 2005 |
| 6848798 |
Emergency lighting unit/exit sign combination |
Feb. 1, 2005 |
| 6840645 |
Light tube system for distributing sunlight or artificial light singly or in combination |
Jan. 11, 2005 |
| 6788000 |
Distributed emergency lighting system having self-testing and diagnostic capabilities |
Sep. 7, 2004 |
| 6781316 |
Vehicle light apparatus |
Aug. 24, 2004 |
| 6753651 |
Emergency ballast with battery heater |
Jun. 22, 2004 |
| 6715895 |
Luminaire body for a medical light, and the use thereof |
Apr. 6, 2004 |
| 6672738 |
Decorative ornament |
Jan. 6, 2004 |
| 6663248 |
Driving circuit for LED lamps |
Dec. 16, 2003 |
| 6637916 |
Lamp for vehicles |
Oct. 28, 2003 |
| 6612729 |
Illumination device |
Sep. 2, 2003 |
| 6609804 |
LED interior light fixture |
Aug. 26, 2003 |
| 6580361 |
Low voltage speaker and lighting system |
Jun. 17, 2003 |
| 6577136 |
Modular self-diagnostic and test switch assembly for controlling inverter operations |
Jun. 10, 2003 |
| 6572234 |
Lamp, especially a surgery lamp, with at least two bulbs |
Jun. 3, 2003 |
| 6489729 |
Auxiliary lighting system for high intensity discharge lamp |
Dec. 3, 2002 |
| 6481870 |
Emergency lighting fixture |
Nov. 19, 2002 |
| 6476559 |
Ceremonial luminary and associated process |
Nov. 5, 2002 |
| 6417624 |
Lighting system for vehicle |
Jul. 9, 2002 |
| 6371621 |
Servo-controlled concealed emergency light fixture |
Apr. 16, 2002 |
| 6361189 |
Operating theater luminaire including discharge lamps within a reflector |
Mar. 26, 2002 |
| 6286976 |
Dome light with removable emergency light module |
Sep. 11, 2001 |
| 6280042 |
Emergency lighting device |
Aug. 28, 2001 |
| 6280053 |
Multiple function electro-luminescent night light devices |
Aug. 28, 2001 |
| 6164788 |
Drop down emergency lighting unit |
Dec. 26, 2000 |
| 6141234 |
Power supply with battery charger for emergency sign |
Oct. 31, 2000 |
| 6106126 |
Electronics layout of an exit sign |
Aug. 22, 2000 |
| 6082893 |
Method and apparatus for testing emergency lighting units |
Jul. 4, 2000 |
| RE36696 |
Light fixture having the combination of a detachable flashlight, a night light, and a fluorescent light contained therein |
May. 16, 2000 |
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