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Browse by Category: Main > Optical & Optics
Class Information
Number: 362/21
Name: Illumination > With filament control means responsive to fracture of light source envelope or enclosure
Description: Subject matter wherein the light source is an incandescent electric filament enclosed in an envelope and may additionally be contained in an enclosing means and wherein electric circuit means is provided to connect the filament to a source of electrical energy and wherein means are provided to disconnect the filament from its source of electrical energy or to reduce or otherwise inhibit the flow of energy through the filament in response to the breakage of the envelope or the enclosing means.










Sub-classes under this class:

Class Number Class Name Patents
362/22 Fluid or pressure responsive 9


Patents under this class:

Patent Number Title Of Patent Date Issued
7494252 Compact luminaire enclosure Feb. 24, 2009
7205789 Termination arrangement for high speed data rate multi-drop data bit connections Apr. 17, 2007
7083287 Tilt detection in illumination source Aug. 1, 2006
7029154 Motor vehicle headlight and frangible support Apr. 18, 2006
6570327 Lamp with safety switch May. 27, 2003
6418191 X-ray apparatus and line connection therefor Jul. 9, 2002
6297585 Fluorescent lamp with thermal protection element manufacturing method for the fluorescent lamp and a lighting apparatus using the same Oct. 2, 2001
6217195 Lamp with safety shutoff features Apr. 17, 2001
6186643 Modular electrical assembly for ornamental luminaire Feb. 13, 2001
6099156 Thin light managing system for directing and distributing light from one or more light sources and method for making optics structures for use in the system Aug. 8, 2000
6099145 Enhanced MTBF backlight system and related method Aug. 8, 2000
6099135 Surface light source element and liquid crystal display device, sign device and traffic control sign device using same Aug. 8, 2000
5842765 Tricolor lighting system Dec. 1, 1998
5842767 Highly efficient illuminator and method of use thereof Dec. 1, 1998
5836667 Concentrating and collecting optical system using concave toroidal reflectors Nov. 17, 1998
5578905 Flow-responsive air purged portable electric lamp Nov. 26, 1996
5526249 Light source device Jun. 11, 1996
5519587 Air purged portable electric lamp May. 21, 1996
5400223 Sports lighting luminaire having a broken glass safety shutdown circuit Mar. 21, 1995
5289352 Headlamp for motor vehicles Feb. 22, 1994
4688159 Switched-mode power supply having a standby state Aug. 18, 1987











 
 
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