Patents for F24H 9 - Details (27,146)
11/1993
11/24/1993CN2147473Y Heat increasing device for water heater
11/24/1993CN2147472Y Water heating boiler for double-layer combustion oxygen compensation boiler
11/24/1993CN2147471Y Insulating device between raw water liner and warm water liner for water heater
11/24/1993CN2147470Y Heat exchanger for water heater
11/17/1993CN2146681Y Inlet device for hot-water heating
11/17/1993CN2146680Y Energy-saving pad for increasing flow and rising temp of water heater
11/17/1993CN2146679Y Automatic on-off rapid electric water heater
11/16/1993US5263116 Heater for liquid
11/16/1993US5261598 Safety device for a combustion apparatus
11/16/1993US5261438 Hot water tank construction, parts therefor and methods of making the same
11/16/1993US5261355 Boiler heat exchanger unit
11/10/1993CN2145956Y Verticle 3-return boiler
11/10/1993CN2145952Y 3-guard electrothermal water heater
11/10/1993CN2145951Y Apparatus for continuously feeding boiling water
11/09/1993CA2011198C Water heater with flame spill-out prevention arrangement
11/03/1993EP0568122A2 A valve assembly for plants providing both heating and domestic hot water
11/03/1993CN2145349Y Automatic temp. controlled apparatus for hot-water apparatus
10/1993
10/28/1993WO1993021483A1 Method of cleaning and maintaining hot water heaters
10/28/1993WO1993021481A1 Heat source housing
10/28/1993DE4213072A1 Electric storage heater - has heater core charged up through electronic controller with adjustable rates of maximum charge
10/28/1993CA2134106A1 Method of cleaning and maintaining hot water heaters
10/27/1993CN2144796Y Smokeless coal-fired boiler
10/20/1993EP0417309B1 Fan heater controller
10/20/1993CN2144276Y Controller for split-type gas combustion water heater
10/20/1993CN2144275Y Car-shaped atmospheric pressure boiler for heating water
10/20/1993CN2144274Y Semi-gas atmospheric pressure water-heating boiler with two fire boxes
10/19/1993CA1323257C Water heater construction
10/14/1993DE4212359A1 Storage heating device
10/13/1993CN2143749Y Sectional lighting and burning control structure for water lighting gas water heater
10/13/1993CN2143748Y Protective cover for water heater
10/13/1993CN1077272A Quick coal-burning gas boiled-water boiler
10/13/1993CN1077271A 自动化热水器 Automatic water heater
10/07/1993DE4210799A1 Storage heating device
10/06/1993EP0563589A1 Boiler
10/05/1993US5251282 Electric water heater with improved insulation structure and control panel housing arrangement
10/05/1993CA2015015C Bell orifice plate for inshot combustion furnace
09/1993
09/30/1993WO1993019332A1 Electric instantaneous water heater
09/29/1993EP0563028A1 Boiler for heating water
09/29/1993EP0562684A1 Improved environmental thermostatic switch, particularly suitable for wall boilers
09/29/1993EP0562554A2 Heater, in particular electric storage heater
09/29/1993EP0562323A2 Burner with flame tube
09/29/1993CN2142946Y Vertical hot-water boiler
09/23/1993DE4237743C1 Vertical heat exchanger mounting - has frame of profiled members and bottom supporting bracket hinging on horizontal axis
09/23/1993DE4208675A1 Electrical constant flow heater with cold water inlet and control unit - has insulation section with heater section consisting of at least tubular heating module, and second insulation section and hot water outlet
09/23/1993DE4208639A1 Locating base for transport of heating boilers and hot water tanks - has pallet foot and an upper cover assuming protective function in form of hood
09/23/1993DE4208602A1 Electronic output control circuit for domestic continuous flow heater - has four heating resistances designed as bare wire coils lying one after other in direction of flow in water ducts of heating block
09/22/1993EP0561583A1 Alarm device for cooker
09/22/1993EP0561422A1 Electric storage heater
09/16/1993WO1993018338A1 A water tank for heating water preferably in a vending machine
09/16/1993DE4308231A1 Bare wire continuous flow heater - has electrical heating element arranged in chamber of electrically insulating material and chamber is connected with water supply and discharge across earthed metallic connecting pieces
09/15/1993CN2142183Y Separating stove for heating water
09/14/1993US5245692 Portable hemispheric electric space heater with circumferential filtered warm air discharge
09/09/1993DE4223511C1 Circuit arrangement with heaters delta connected to three phase mains - has heaters lying directly exposed in liquid e.g. water to be heated, with at least one electronic element esp triac connected in series to each heater
09/08/1993CN2141878Y Multiple cycle heating inner chamber for gas water heater
09/01/1993EP0558334A1 Gas-fired water heater
09/01/1993CN2141534Y Plate type forced heat-exchange quick water heater
08/1993
08/31/1993US5239980 Forced air furnace control system and method of operation
08/27/1993CA2088182A1 Gas-fired water heater
08/26/1993DE4205951A1 Oil or gas fired heating boiler - comprises double water jacket and pipe to take burner together with flux baffle and flash chamber and exhaust collecting chamber
08/26/1993DE4205758A1 Simplified control system for electric storage heater - has common feed for charging, heating and for control signals using coded signals.
08/26/1993DE4205539A1 Central heating installation with boiler,circulating pump,and radiators - has plug pipe couplings on members for attaching pipes with interposed seals.
08/26/1993DE4205316A1 Dual counterflow boiler for infinitely smooth heating system - has two internal counterflow circuits in parallel in the same direction and burns two circuit exhaust circulations
08/25/1993CN2141053Y Leak-proof electric water heater
08/24/1993US5239163 Automobile air heater utilizing PTC tablets adhesively fixed to tubular heat sinks
08/18/1993EP0556168A1 Thermostat
08/18/1993EP0555534A2 Receiving means for coded time signals transmitted by radio
08/18/1993CN2140539Y Music alarm indicating water boiling
08/07/1993WO1993016336A1 Switching device for instantaneous water heaters
08/07/1993CA2129331A1 Switching device for instantaneous water heaters
08/05/1993DE4202990A1 Hot water storage tank with cold water supply and hot water draw-off connections - has kinked connection for cold supply in base of tank formed into trap with open ended horizontal leg discharging into tank
08/05/1993DE4202410A1 Connecting box attaching cable and temp. adjuster to water heater - has one piece holder with inner and outer part connected to two housing parts for holding cable and temperature adjuster respectively
08/05/1993DE4202328A1 Wall mounted water heater with lead for mains connection - has chamber in back of heater in which plug lead is stored and which has side cable outlet
08/03/1993US5232153 Arrangement for the reduction of the exhaust gas temperature in heating devices
08/03/1993CA1320937C Central heating unit with domestic hot water circuit
07/1993
07/28/1993EP0552720A1 Heat exchanger
07/27/1993CA1320667C Device for controlling overheating and scaling in an apparatus for heating a fluid and apparatus equipped with such a device
07/21/1993CN2138770Y Protector for water heater switch
07/21/1993CN2138769Y Adjustable pressurizing device for water flow of water heater
07/21/1993CN2138768Y Gas burning water heater with anti-leakage gas burning pond
07/21/1993CN2138767Y Automatic slag discharging and wind blowing range water heater
07/21/1993CN1074530A Hot-fire-tube-type heating furnace
07/20/1993US5228618 Thermal and flow regulator with integrated flow optimizer
07/14/1993CN2138276Y Effective waste releasing part of water boiler
07/08/1993WO1993013366A1 A boiler
07/07/1993EP0489820B1 Pulsatory burner
07/07/1993CN2137773Y Water heater with positioning and correcting functions
07/07/1993CN2137772Y Electric direct-heating shower
07/07/1993CN2137771Y Mini-size pressureless boiler
07/07/1993CN2137768Y Gas heating system
07/07/1993CN1074028A Low-pressure aluminium boiler using oil fuel
07/06/1993US5224445 Boiler water liquid level control
07/01/1993DE4143026A1 Central heating system for dwelling and commercial houses - is oil or gas fired with water as heating medium pumped around radiators for heating and for domestic use.
07/01/1993DE4142939A1 Boiler control circuit in heating plant - uses changeover to lower supply voltage to test each item of peripheral apparatus before plant is operated
06/1993
06/30/1993EP0548536A1 Heater for room heating and domestic water production
06/23/1993EP0547715A2 Improved interface circuit for control devices of heating appliances, particularly suitable for wall-mounted boilers
06/23/1993EP0547641A1 Burner which may or may not be integrated into a heat exchanger
06/17/1993CA2076208A1 Wind-resistant heating appliance
06/16/1993EP0546028A1 Combined control and regulating valve for liquids or gases
06/16/1993CN2136433Y Water ignitor for water heater
06/16/1993CN2136432Y Split gas water heater