Patents for F21V 23 - Arrangement of electric circuit elements in or on lighting devices (46,764)
03/1982
03/09/1982US4319314 Light fixture with internal connection zone
03/09/1982US4319311 Readily collapsable portable lighting system having a simplified holder for color filters
03/02/1982US4318160 Fluorescent lamp conversion unit
03/02/1982US4318159 Magnetic light fixture
02/1982
02/16/1982CA1118487A1 Lightweight fluorescent lamp ballast
02/03/1982EP0045182A1 Compact fluorescent lamp
01/1982
01/26/1982US4313208 Methods and apparatus for transmitting electromagnetic radiation for illumination and communication
01/20/1982EP0044195A1 Compact fluorescent lamp arrangement
01/19/1982CA1116688A1 Lighting device
01/12/1982US4310878 Digital feedback control system
01/12/1982US4310874 Grounded dual voltage trouble light and extension cord
01/05/1982US4309745 Reflector
12/1981
12/23/1981EP0042362A1 Hand-lamp with at least one fluorescent tube
12/01/1981US4303969 Portable dance floor system
11/1981
11/10/1981US4300188 Detachable lamp assembly
11/03/1981US4298921 Lamp
10/1981
10/06/1981US4293894 Battery operated illuminating device
09/1981
09/16/1981EP0035747A1 Lighting fixture for telegraph apparatuses and office machines
09/08/1981US4288844 Electrically focused surgical light
09/08/1981US4288725 Lightweight fluorescent lamp ballast
08/1981
08/25/1981US4286313 Balanced industrial luminaire
08/04/1981US4282563 Fluorescent lamp unit
07/1981
07/29/1981EP0032721A1 Electric connection between a recessed lighting fixture and supply conductors
07/28/1981US4281365 Variable photoelectric cell
07/14/1981US4278911 Circular fluorescent lamp unit
06/1981
06/24/1981EP0030738A1 Ballast support for fluorescent lamps
06/23/1981CA1103639A1 Sport light and ballast module
06/16/1981US4274130 Combination flashlight and high intensity light source
06/09/1981US4272689 Flexible wiring system and components therefor
05/1981
05/26/1981US4270171 Position sensing and indicating device
04/1981
04/28/1981US4264945 Vertical indicia displaying and energy supply column
04/21/1981US4263640 Lighting device
04/07/1981US4261029 Lighting device with rotatable reflector
04/01/1981EP0026010A1 Housing for a working space equipment and profile piece for said housing
03/1981
03/31/1981US4259709 Decorative lighting assembly
03/24/1981CA1098097A1 Removable dust-free lamp unit with contactless switch
03/03/1981CA1096833A1 Switch for flexible walled flashlight
02/1981
02/17/1981US4251856 Image projecting device
02/17/1981CA1095869A1 Fluorescent rail fixture
01/1981
01/20/1981US4246632 Lamp assembly and method of manufacture thereof
01/20/1981CA1094033A1 Latch assembly for removably securing electrical component tray in light fixture housing
12/1980
12/30/1980US4242724 Disposable floating flashlight
12/23/1980US4241386 Fluorescent lamp adapter for residential incandescent-type lamp fixture
12/09/1980US4238816 Lamp for the maintenance, servicing and repairing of motorvehicles
11/1980
11/04/1980US4232361 Adjustable light fixture
11/04/1980CA1088999A1 Fluorescent lamp unit for multiple installation
11/04/1980CA1088904A1 Lamp assembly
10/1980
10/07/1980US4227228 Miniature socketed fuse for a decorative string of series-connected miniature incandescent lamps
09/1980
09/16/1980US4223377 Electra brick
09/02/1980US4220986 Hinged ballast tray
08/1980
08/26/1980US4219869 Apparatus for mounting and supplying power to a luminaire
08/26/1980US4219868 Plug-in lighting system
08/05/1980US4216464 Sound responsive light device
07/1980
07/29/1980US4215389 Battery operated light
07/23/1980EP0013381A1 Reflector lighting fixture for high-pressure lamps
07/22/1980US4214295 Portable electric lamp adjustable from spot beam to diffused beam
07/08/1980US4211959 Touch-control adapter for electric lamps
07/01/1980US4210953 Self-illuminated case
06/1980
06/24/1980US4209853 Holographic system for object location and identification
06/24/1980US4209852 Signal processing and memory arrangement
06/24/1980US4209843 Method and apparatus for signal enhancement with improved digital filtering
06/24/1980US4209728 Outdoor lighting system and method
06/10/1980US4207606 Luminaire apparatus and improved means for connecting same with a power source
06/10/1980CA1079244A1 Automatic night light circuit and structure
05/1980
05/20/1980US4204139 Integral fluorescent lamp-ballast unit
04/1980
04/29/1980US4200903 Compact portable indirect lighting fixture with acoustical control
04/22/1980US4199803 Mercury vapor floodlight fixture assembly and method
03/1980
03/04/1980US4191989 Recessed interior fluorescent luminaire
02/1980
02/05/1980US4187532 Electronic candle
01/1980
01/29/1980US4186432 Lamp for use in subterranean applications
01/22/1980CA1070281A1 Fluorescent tube lighting fixture
01/15/1980US4184194 Self-energized portable high density light display unit
01/08/1980US4183077 Light projector
01/01/1980US4181304 Illuminated dice and storage housing
12/1979
12/11/1979US4178627 Lamp assembly
12/11/1979US4178626 Drawer light
11/1979
11/13/1979CA1066248A1 Fluorescent lamp unit having ballast resistor
10/1979
10/30/1979US4173035 Tape strip for effecting moving light display
10/16/1979US4171535 Luminaire for concealed T ceiling systems
10/02/1979CA1063573A1 Lighting fixture with removable electrical component mounting arrangement
09/1979
09/25/1979CA1063077A1 Luminaire ballast mounting system
09/25/1979CA1063075A1 System for electrical interconnection and switching of multiple lighting fixtures
09/11/1979US4167783 Portable lighting system having a foot operated dimmer
08/1979
08/14/1979US4164783 Sport light and ballast module
08/14/1979CA1060410A1 Flashlight having a magnet-switch combination
08/07/1979CA1059962A1 Flashlight
07/1979
07/31/1979US4163176 Energy saving fluorescent lamp
07/17/1979CA1058594A1 Modular block fluorescent lamp suspension system
05/1979
05/29/1979US4156902 Latch assembly for removably securing electrical component tray in light fixture housing
05/29/1979US4156890 Flash assembly using elongated trigger bar
05/29/1979CA1055458A1 Sectional lighting fixture with individual plug and socket members
05/22/1979US4156270 Outdoor lighting fixture
05/22/1979US4155608 Gun cabinet
05/01/1979US4152755 Portable magnetically actuatable flashlight
05/01/1979CA1053633A2 Three-position flashlight switch
03/1979
03/27/1979US4146820 Fluorescent lamp power reducer
03/13/1979US4144582 Voice signal processing system
02/1979
02/06/1979US4138621 Short-arc discharge lamp with starting device
01/1979
01/09/1979US4134045 System for electrical interconnection and switching of multiple lighting fixtures
12/1978
12/26/1978CA1045100A1 Portable battery-operated electric light