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Class Information
Number: 315/116
Name: Electric lamp and discharge devices: systems > With load device temperature modifier > Electric heater for the load device > Automatic cut-out or voltage regulator for the heater circuit
Description: Systems provided with (1) means to open the current supply circuit for the heating means, or (2) means to regulate the current supplied to the heating means, such means being automatically operated in response to some condition.










Patents under this class:

Patent Number Title Of Patent Date Issued
8541960 Rejecting noise transients while turning off a fluorescent lamp using a starter unit Sep. 24, 2013
8304995 Lamp with snow removing structure Nov. 6, 2012
8203273 Ballast circuit for a gas discharge lamp that reduces a pre-heat voltage to the lamp filaments during lamp ignition Jun. 19, 2012
8072148 Fluorescent lamp driving device and liquid crystal display apparatus using the same Dec. 6, 2011
7880395 Method for restoring function of plasma display panel and plasma display panel Feb. 1, 2011
7834553 System and apparatus for cathodoluminescent lighting Nov. 16, 2010
7298093 Method and device for driving CCFL circuit Nov. 20, 2007
7127189 Heating unit, auxiliary power unit, fixing unit, and image forming apparatus Oct. 24, 2006
7034467 Controller for suppressing temperature of screen Apr. 25, 2006
6969959 Electronic control systems and methods Nov. 29, 2005
6838834 Lighting system and electric power supplier for the same Jan. 4, 2005
6724160 Ion-source neutralization with a hot-filament cathode-neutralizer Apr. 20, 2004
6664742 Filament cut-back circuit Dec. 16, 2003
6149279 Indicating instrument for vehicle Nov. 21, 2000
6066920 Illumination device, method for driving the illumination device and display including the illumination device May. 23, 2000
6006661 Stamp-making apparatus, as well as function changeover mechanism, exposure system and stamp-making object material-detecting device therefor Dec. 28, 1999
5659227 Fluorescent lamp controller and original-document exposing apparatus a having the fluorescent lamp contoller Aug. 19, 1997
5406172 Light source intensity control device Apr. 11, 1995
5272472 Apparatus for addressing data storage elements with an ionizable gas excited by an AC energy source Dec. 21, 1993
5229842 Method and apparatus for controlling fluorescent lamp mercury vapor pressure Jul. 20, 1993
5189340 Fluorescent lamp assebmly for image scanner Feb. 23, 1993
5182432 Crack detector and heating circuit for motor vehicle headlight light transmissive shield Jan. 26, 1993
5059860 Illuminating light source for color image recording device Oct. 22, 1991
4941743 High stability high intensity atomic emission light source Jul. 17, 1990
4922373 Overtemperature protector for incandescent lamp May. 1, 1990
4899085 Igniting device for a high-pressure discharge lamp capable of battery voltage compensation Feb. 6, 1990
4891563 Circuit arrangement for adjusting the operating voltage of high-pressure gas discharge lamps Jan. 2, 1990
4837655 Overtemperature protector for incandescent lamp Jun. 6, 1989
4801840 Discharge lamp having automatically controlled preheating device attached to envelope Jan. 31, 1989
4798997 Lighting device Jan. 17, 1989
4675573 Method and apparatus for quickly heating a vacuum tube cathode Jun. 23, 1987
4645974 Discharge tube lighting system for use in a vehicle Feb. 24, 1987
4533854 Mechanism and method for controlling the temperature and output of a fluorescent lamp Aug. 6, 1985
4533853 Mechanism and method for controlling the temperature and output of a fluorescent lamp Aug. 6, 1985
4529912 Mechanism and method for controlling the temperature and light output of a fluorescent lamp Jul. 16, 1985
4459513 High pressure sodium vapor lamp having resistance heater means Jul. 10, 1984
4447762 Electroluminescent displays May. 8, 1984
4442378 High pressure sodium vapor lamp having resistance heater means Apr. 10, 1984
4442379 High pressure sodium vapor lamp having resistance heater means Apr. 10, 1984
4431947 Controlled light source Feb. 14, 1984
4101807 Method and apparatus for controlling the temperature of low pressure metal or metal halide lamps Jul. 18, 1978
4001633 Device provided with a gas and/or vapor discharge tube Jan. 4, 1977
3955118 Cold-cathode ion source May. 4, 1976











 
 
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