Patents for H05B 1 - Details of electric heating devices (8,316)
03/1991
03/13/1991CN2072808U Adjustable electricle heating pot
03/12/1991US4999480 Holder with automatic timed shut-off for large tipped electric soldering irons
03/07/1991DE4028354A1 Electric heating element suitable for domestic coffee-making machine - has heating resistance paths on ceramic support with through-holes allowing connection to regulating elements
02/1991
02/19/1991US4994750 Use of capacitance for protecting against overheating of a waterbed heater
02/12/1991CA1280145C Cooktop appliance with improved power control
01/1991
01/24/1991WO1991000811A1 Portable vehicle heater
01/23/1991CN2069704U Electronic automatic temp control electric heating ceramic shower
01/02/1991CN2068392U Sleeping quick heating machine
12/1990
12/26/1990CN2068302U Safety protecting switch for electric frying pan
12/19/1990CN2067565U Automatic electrothermal pot for decocting herbal medicine
12/05/1990CN2067055U Safety device for electric heating blanket
11/1990
11/27/1990US4973827 Disinfector units for contact lenses
11/21/1990CN2066219U Automatic protecting electric warming tube
11/21/1990CN2066211U Energy-saving electric heat regulator
11/14/1990EP0397043A1 Apparatus for generating cold and heat
11/13/1990CA1276219C Energy saving control circuit for hot water heater
11/07/1990CN2065383U Flame-resisting electric heating device
11/06/1990US4968870 Hair curling appliance power control circuit
10/1990
10/24/1990CA2013099A1 Control cowl for electric range
10/23/1990US4965432 Portable vehicle heater
10/03/1990CN2063329U Electric heater
09/1990
09/26/1990CN2062931U Double-pole double-throw double-lamp dc safety switch for temp. regulation
09/11/1990US4956544 Overheat protected electric cartridge heater
08/1990
08/22/1990EP0383741A2 Arrangement in a range or a cooking hob
08/01/1990CN2060028U Thermostatic electric iron
07/1990
07/31/1990CA1272239A1 Training smoke generator
07/11/1990EP0377169A2 Switch apparatus
07/04/1990EP0201527B1 Method and device for reducing the temperature range of a mechanical thermostat
06/1990
06/13/1990CN2058292U Safety temperature adjusting switch
05/1990
05/16/1990CN1008050B Ptc heating device
04/1990
04/04/1990CN2055659U Protective device for quick-heating apparatus
03/1990
03/27/1990CA1267182A1 Warming fan
03/21/1990CN2054963U Thermos electrothermal heater self-controlled switch when water boiling
02/1990
02/28/1990CN2053830U Switch of electrothermal blanket with automatic electronic temp. controlling
02/21/1990CN2053416U Energy-saving controller for resistance-type heater
02/14/1990CN2052651U Heating device for electric kettle
02/13/1990US4901049 Temperature limiter
02/07/1990CN2052571U Flame-retarded safety switch with automatic attemperation
01/1990
01/03/1990EP0348716A2 Thermal switch
12/1989
12/28/1989DE3821496A1 Temperature switch
12/28/1989DE3821495A1 Temperature switch
12/20/1989EP0346327A1 Temperature controlled soldering iron with temperature setting established by a replaceable resistor.
12/06/1989CN2049058U Electroheat apparatus with multipoint sampling and overheating protection
12/05/1989CA1263684A1 Temperature sensor failure detection system for cooking appliance
12/05/1989CA1263682A1 Boil point prediction arrangement for cooking appliance
12/05/1989CA1263681A1 Power control arrangement for automatic surface unit
11/1989
11/22/1989CN2047947U Multi-function thermal control electric heating mattress
11/20/1989EP0346327A4 Temperature controlled soldering iron with temperature setting established by a replaceable resistor.
11/01/1989CN2047087U Miniature automatic temp. regulating switch
10/1989
10/24/1989CA1262470A1 Method for monitoring a heater
10/05/1989DE3909261A1 Control system for electric hotplate and oven - has piezoelectric relays and programmed control
09/1989
09/27/1989CN2044841U Fireproof alarm device for electrothermal rug
08/1989
08/30/1989CN2043496U 电热水袋 Electric hot-water bottle
08/01/1989US4853519 Heating apparatus for heating in a plurality of heating modes
07/1989
07/18/1989CA1257660A1 Induction heating apparatus with temperature displaying means
06/1989
06/21/1989CN2039813U Repid electric water heater controlled by water flow
06/15/1989WO1989005560A1 Control apparatus for electric bed heating arrangements
06/14/1989EP0320157A1 Control apparatus for electric bed heating arrangements
06/14/1989CN2039488U Power-economizing and life-prolonging device for electrothermal equipment
06/14/1989CN2039487U Power-regulated thermostatic heater
06/13/1989US4839626 Power control device
06/07/1989EP0318895A2 Tubular heating element
05/1989
05/31/1989CN2038611U Switch box of electric water-heating device
05/10/1989CN2037517U Electrothermal cover automatic temperature regulation
04/1989
04/26/1989CN1003984B Heating tool for heating pipe connector sleeves
04/20/1989DE3833293A1 Heating element
03/1989
03/29/1989EP0308779A1 Temperature limiting device particularly for armoured resistance elements
03/29/1989CN2034811U Energy-saving and time-saving electric cooker capable of delayed starting
03/15/1989CN2034358U Electric warming mattress with ptc multipoint automatic temp. limiting and controlling feature
02/1989
02/22/1989CN2033100U Structure of heater
02/08/1989EP0302580A1 Heating apparatus
01/1989
01/18/1989CN2031186U Automatic controller for electric heating of high press ure cooker
01/17/1989US4798938 Temperature control apparatus for a baking oven
01/03/1989US4796207 For temperature regulation
12/1988
12/21/1988CN88201228U Electrothermal bedclothes with circuit breaking protector
12/20/1988CA1247182A1 Heater scale
11/1988
11/30/1988CN88201649U Safety basement for household electric cooking utensils
11/29/1988US4788415 Dual bimetal power control switching arrangement for electronically controlled appliances
11/22/1988CA1245264A1 Diagnostic testing arrangement for commutated relay switching circuits
11/15/1988US4785163 Method for monitoring a heater
10/1988
10/19/1988CN88201110U Electrothemal warmer
10/05/1988EP0285086A2 Power control apparatus
10/05/1988CN87213220U Constant temp. electricity-saving switch of electrothermal blanket
09/1988
09/14/1988CN87215479U "ptc" adjustable auto temp. control electric blanket
09/07/1988WO1988006503A1 Temperature controlled soldering iron with temperature setting established by a replaceable resistor
09/01/1988DE3705261A1 Temperature limiter
08/1988
08/24/1988EP0279368A2 Temperature limiter
08/16/1988US4764660 Electric smoke generator
07/1988
07/27/1988EP0275383A2 Radiant heater with alert indicator
07/05/1988US4755653 Heater with alert indicator
06/1988
06/28/1988US4754123 Electric hotplate
06/28/1988US4754119 Temperature regulating device, particularly for liquids or gases
06/08/1988CN85204056U Multi purpose electrothermal pen
05/1988
05/11/1988EP0097677B1 Joining/separating sheet material along edges
05/04/1988CN87204575U Auto power saving device for electric cooker
04/1988
04/27/1988CN87205772U Multifunctional electric pressure cooker
03/1988
03/31/1988DE3729901A1 Circuit arrangement for thermostatically controlled, AC-operated heaters
03/16/1988EP0259639A1 Electronic time switch
03/16/1988CN87206377U Quick heating type warming sleeve
03/02/1988CN86208439U Automatic temperature-control switch for electric warming pad
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