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Class Information
Number: 219/519
Name: Electric heating > Heating devices > With current connection and/or disconnection means (e.g., switch) > Automatically operated > Including electromagnetic relay means
Description: Subject matter wherein the automatically operated current connection or disconnection structure includes electromagnetic relay means.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8680442 Systems and methods for a temperature-controlled electrical outlet Mar. 25, 2014
8669503 Warm window buss bar system and safety mechanism Mar. 11, 2014
8637795 Self-configuring flexible heater Jan. 28, 2014
8614407 Method for supplying current to a glow plug Dec. 24, 2013
8541719 System for reduced peak power consumption by a cooking appliance Sep. 24, 2013
8536495 Device for regulated water heating using the energy gained by photovoltaic cells Sep. 17, 2013
8530793 Warm window buss bar system and safety mechanism Sep. 10, 2013
8309893 Switching apparatus and controller for an electric appliance that promotes extended relay life Nov. 13, 2012
8164029 Magnetic safety feature for cookware and cooking stoves Apr. 24, 2012
8119953 Heating control system using a fluid level sensor and a heating control element Feb. 21, 2012
8003922 Solid state switch with over-temperature and over-current protection Aug. 23, 2011
7683294 Multistage control system of positive temperature coefficient heater and method thereof Mar. 23, 2010
7667161 Magnetic safety feature for cookware and cooking stoves Feb. 23, 2010
7619181 Heating system for bathing unit Nov. 17, 2009
7500453 Boiler control unit Mar. 10, 2009
7432477 Set-back control for both HVAC and water heater via a single programmable thermostat Oct. 7, 2008
7355151 Magnetic safety feature for cookware and cooking stoves Apr. 8, 2008
7345259 Circuit arrangement and method for preventing overheating of a cooking appliance Mar. 18, 2008
7279660 Apparatus for brewing beverages Oct. 9, 2007
7180038 Device for switching on and off several heating mechanisms of cooking equipment as well as cooking equipment with such a device Feb. 20, 2007
7180039 Heater with burnout protection Feb. 20, 2007
7135658 Magnetic safety feature for cookware and cooking stoves Nov. 14, 2006
6981650 Pool/spa heater Jan. 3, 2006
6872923 One pop popcorn popper Mar. 29, 2005
6573482 Heating device, liquid processing apparatus using the heating device and method of detecting failure thereof Jun. 3, 2003
6489597 Range surface heating unit relay power switching control Dec. 3, 2002
6465764 Water heater and control system therefor Oct. 15, 2002
6429407 Household electronic toaster Aug. 6, 2002
6413630 Decorative film Jul. 2, 2002
6407366 Image heating apparatus having a plurality of heat generating elements Jun. 18, 2002
6310331 Circuit configuration for driving an ignition coil Oct. 30, 2001
6294767 Dishwasher Sep. 25, 2001
6268588 Steering wheel heater assembly and a method for heating a steering wheel Jul. 31, 2001
6140620 Appliance timer Oct. 31, 2000
6137091 Electric cooker Oct. 24, 2000
6130413 Safety device for electric cooking stove Oct. 10, 2000
6084218 Spa heater temperature control circuit Jul. 4, 2000
6052988 Apparatus for controlling the supply of electric power to electrically heated catalyst Apr. 25, 2000
6015967 Ground drift-free switching circuit Jan. 18, 2000
5951901 Steam control for combination oven and steamer Sep. 14, 1999
5948305 Multi-function control module for toaster oven appliance Sep. 7, 1999
5938960 Timer with adjustable time control based on an RC oscillator with a variable resistor, and toaster including such a timer Aug. 17, 1999
5897804 Method and means of heating and controlling the temperatures in a sauna Apr. 27, 1999
5880438 Steam sterilization apparatus and control system Mar. 9, 1999
5844209 Apparatus to control the cooking temperature of foods Dec. 1, 1998
5822978 Method of controlling the electric heating of a catalytic converter Oct. 20, 1998
5739504 Control system for boiler and associated burner Apr. 14, 1998
5698123 Toaster compensation for repeated use Dec. 16, 1997
5679274 Circuit and method for controlling electrical heater in a distiller Oct. 21, 1997
5672288 Light sensitive control for toaster Sep. 30, 1997

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