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Class Information
Number: 219/485
Name: Electric heating > Heating devices > With power supply and voltage or current regulation or current control means > Controlling or regulating plural separate distinct heating resistance elements(i.e., one control system for all elements) > With total current or power limiting means
Description: Subject matter including means whereby the total current traversing the plurality of resistance elements at any time is maintained at or below a predetermined value or whereby the total power consumed by the plurality of heating elements is maintained constant.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8693854 Vacuum heating device and vacuum heat treatment method Apr. 8, 2014
8541719 System for reduced peak power consumption by a cooking appliance Sep. 24, 2013
8436279 System for supplementation of appliance standby mode with internal power source May. 7, 2013
8367979 Cooking platform and related method Feb. 5, 2013
8283608 Method for heating at least one component of an SCR system using resistive heating elements Oct. 9, 2012
8263911 Electronic device with heating protection circuit and heating protection method thereof Sep. 11, 2012
8115146 Positive temperature coefficient heater Feb. 14, 2012
8039774 Electrical heater with a resistive neutral plane Oct. 18, 2011
7892423 Dialysis system including multi-heater power coordination Feb. 22, 2011
7786412 Pressure relief for current limiter Aug. 31, 2010
7759615 Steam cooking apparatus Jul. 20, 2010
7626145 Redundant control circuit for hot melt adhesive hose assembly heater circuits and temperature sensors Dec. 1, 2009
7589299 Electronic power control for cooktop heaters Sep. 15, 2009
7495194 Heating apparatus and heating method Feb. 24, 2009
7368686 Apparatus and methods for operating an electric appliance May. 6, 2008
7368832 Circuit and fault tolerant assembly including such circuit May. 6, 2008
7358666 System and method for sealing high intensity discharge lamps Apr. 15, 2008
7332692 Redundant control circuit for hot melt adhesive assembly heater circuits and temperature sensors Feb. 19, 2008
7304270 Integrated warmer drawer and warmer zone controls Dec. 4, 2007
7256372 Fluid-heating apparatus, circuit for heating a fluid, and method of operating the same Aug. 14, 2007
7214910 On-chip power supply regulator and temperature control system May. 8, 2007
7202449 Brewing machine power management system and method Apr. 10, 2007
7109448 Control system for cooking appliance employing radiant cooking Sep. 19, 2006
7076324 Directionless rotary encoder control system for a household appliance Jul. 11, 2006
7041940 Power management systems and methods May. 9, 2006
6989514 System and method for controlling temperature control elements that are used to alter liquid temperature Jan. 24, 2006
6881932 High reliability heater modules Apr. 19, 2005
6875961 Method and means for controlling electrical distribution Apr. 5, 2005
6849830 Apparatus and method of rapidly and evenly heating a packaged food product Feb. 1, 2005
6841761 Nominal voltage identification system for electric resistance Jan. 11, 2005
6831257 Control system for multiple heating towers a method for heating liquids and distributing operating wear amongst a plurality of heating towers Dec. 14, 2004
6806446 Power management controls for electric appliances Oct. 19, 2004
6794618 Method for electrical heating of furnaces for heat treatment of metallic workpieces Sep. 21, 2004
6777652 Programmable oven with broiler temperature interlock Aug. 17, 2004
6740854 Device for satellites including power supply means and associated with heating means May. 25, 2004
6730884 Protective circuit for electrical heating element May. 4, 2004
6713729 Electric load control system and vehicle air-conditioning system having the same Mar. 30, 2004
6700101 Power management system in electrical cooking appliances Mar. 2, 2004
6680464 Electrofusion joining control device Jan. 20, 2004
6670584 Spa electric heater system using multiple spa heaters Dec. 30, 2003
6492629 Electrical heating devices and resettable fuses Dec. 10, 2002
6483081 In-line cure furnace and method for using the same Nov. 19, 2002
6399926 Heat-treating apparatus capable of high temperature uniformity Jun. 4, 2002
6355915 Heat/blower unit with load control Mar. 12, 2002
6350967 Energy saving water heater control Feb. 26, 2002
6351083 Circuit for selective power supply to electrical units Feb. 26, 2002
6246034 Multi-period cycle-skipping for low flicker, fine-resolution power control Jun. 12, 2001
6133555 Zero defect management system for restaurant equipment and environment equipment Oct. 17, 2000
6124576 Arrangement for limiting the temperature of a glass-ceramic cooking zone Sep. 26, 2000
6117266 Furnace for continuous, high throughput diffusion processes from various diffusion sources Sep. 12, 2000

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