Patents for F24H 9 - Details (27,146) |
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05/30/1990 | CN2057736U Microcomputer fixed-temp. heating water unit |
05/29/1990 | US4928664 Pulse combustion heating apparatus |
05/23/1990 | CN2057503U Top-firing briquet coal backfire type boiler |
05/23/1990 | CN2057501U Automatic pressure sensing controlled boiler |
05/22/1990 | US4928204 Portable electrical appliance |
05/22/1990 | US4926840 Pilot gas bypass system for fuel-fired furnaces |
05/17/1990 | DE3908013C1 Heat-technological apparatus with enclosing housing |
05/17/1990 | DE3838477A1 Method for controlling the circulation pump of a heating installation |
05/17/1990 | DE3838130A1 Electric space-heating appliance |
05/15/1990 | US4924816 Water heater with flame spill-out prevention arrangement |
05/09/1990 | CN1042002A Non-pressure opened type hot water boiler and heating device |
05/08/1990 | US4923969 Preparation of 99m Tc radiopharmaceuticals |
05/03/1990 | DE3934629A1 Distributor for connecting radiator to heating system |
05/02/1990 | EP0365640A1 Low-temperature heating boiler. |
04/24/1990 | US4919123 Filter base for forced air furnace |
04/19/1990 | DE3835469A1 Boiler |
04/19/1990 | DE3835096A1 Layered hot-water storage tank |
04/19/1990 | DE3834898A1 Method and device for heating a container or pipelines, pumps |
04/18/1990 | EP0363708A2 Heating apparatus for agents fluids |
04/18/1990 | EP0363636A1 Heater with a combustion chamber with an inverted burner |
04/18/1990 | CN2056226U Explosion-proof safety device for non-pressure hot-water boiler |
04/17/1990 | US4917142 Secondary circulation unit |
04/17/1990 | US4917077 Wall-mounted hot water boiler of the instant type |
04/11/1990 | CN2055917U Domestic boiler for use of soft coal block |
04/10/1990 | US4915620 Burner, in particular atmospheric pre-mix gas burner, and cooling rods therefor |
04/10/1990 | US4915073 Boiler tube wall inspection system |
04/05/1990 | DE3833697A1 Solar current through a gas or oil heating burner, as well as electrical illumination devices |
04/04/1990 | CN1007453B Primary boiler for automatic operation |
03/29/1990 | DE3931095A1 Safety control for gas fired heater - using temperature sensors in two sites and programmed control circuit |
03/29/1990 | DE3930170A1 Room-temp. control unit - has pipe holder bracket with adjustable component pressing against pipe |
03/29/1990 | DE3832323A1 Water-side connection of a central-heating boiler |
03/29/1990 | DE3832322A1 Heating boiler |
03/29/1990 | DE3832320A1 Method for regulating a central-heating boiler |
03/28/1990 | CN2055237U Electric boiler being able to control feeding water by electro-magnetic valve |
03/28/1990 | CN2055235U Full-automatic power saving healthy cold and hot boiled water supply |
03/28/1990 | CN1040863A Gas water-heater with temp.-controlled warming, oxygen deficit and fault self-checking alarming and auto-control exhaust |
03/27/1990 | US4912300 Control device for heating appliance having two operating regimes |
03/27/1990 | US4911108 Water heater construction |
03/27/1990 | CA1267136A1 Air to air heat exchanger |
03/27/1990 | CA1267106A1 Electroplating the interior of a stream generator tube |
03/22/1990 | DE3830719A1 Electric flow heater |
03/21/1990 | EP0359306A2 Boiler |
03/21/1990 | CN1040672A Automatic water boiler controlled by pressure sensor |
03/20/1990 | US4909274 Valve apparatus |
03/15/1990 | DE3929314A1 Water heater which placed either on or beneath bench - is designed to increase water flow and avoid turbulence |
03/14/1990 | EP0357925A1 Sacrificial anode with consumption indication and iron core for water reservoirs and water heaters |
03/13/1990 | US4907543 Boiler air port cleaner |
03/07/1990 | EP0356735A1 A heat exchanger |
03/06/1990 | US4906818 Heater safety mechanism |
03/06/1990 | US4906817 Overflow compensation device for a water heater using a variable volume bellows |
03/06/1990 | US4905895 Heating device, particularly vehicle auxiliary heating device with a quadrangular heat exchanger |
03/06/1990 | US4905527 Boiler tube wall inspection system |
03/01/1990 | DE3829140A1 Piping distributors for central-heating systems |
02/22/1990 | WO1990001658A1 Heater mounting arrangement |
02/22/1990 | WO1990001571A1 Sacrificial anode with consumption indicator and iron core for water tanks and water heaters |
02/21/1990 | CN2053314U Low-position open expansion device for stablilizing pressure |
02/20/1990 | US4901915 Control apparatus for water temperature and water flow rate |
02/20/1990 | US4901676 Sealing and insulation device for the space between spaced apart surfaces |
02/14/1990 | EP0354631A1 Connection fitting for a radiator with an electric heating element |
02/14/1990 | EP0354406A2 Hood for collecting and conveying fumes originated from boilers or the like |
02/14/1990 | CN2052875U 定时报警热水器 Water heater timer alarm |
02/13/1990 | US4900896 Continuous flow water heater with magnetically-actuated flow switch |
02/08/1990 | DE3925734A1 Monitoring circuit for timing element - provides start monitoring by switching pulse oscillator frequency to higher value |
02/07/1990 | CN2052503U Temperature control switch for electric water heater |
02/07/1990 | CN2052502U Anti-fouling device for domestic water heater |
02/07/1990 | CN2052500U Atmospheric hot-water boiler |
02/06/1990 | US4898150 Pressure balancing water heater dip tube turbulator attachment |
02/06/1990 | US4898146 Heating appliance |
02/06/1990 | US4898124 Scale agitator |
02/01/1990 | DE3923805A1 Prevention of moisture condensation in boiler chimney - involves and moisture sensors which control fuel supply |
02/01/1990 | DE3901243C1 Continuous-flow heater for liquids |
02/01/1990 | DE3831065C1 Filling and emptying battery for a rapid-boiling water heater |
01/31/1990 | CN2052113U Quick-heater for shower and boiling water |
01/31/1990 | CN1006660B Control device for superheating and scale of fluid heating equipment |
01/25/1990 | WO1990000706A1 Electrical heating appliance |
01/24/1990 | EP0351669A1 Electric heater |
01/23/1990 | CA1264622A1 Water heater construction and method of heating water |
01/23/1990 | CA1264621A1 Water heater construction and method of manufacture |
01/18/1990 | DE3823868A1 Heat accumulator apparatus with insert |
01/16/1990 | US4894516 Electrical storage heaters |
01/11/1990 | DE3823388A1 Electrical storage heater |
01/10/1990 | CN2050962U Multipower source quick water heating device |
01/10/1990 | CN1038693A Hot-air type heater |
01/04/1990 | DE3822238A1 Boiler with a tubular heating-gas flue |
01/03/1990 | EP0349233A2 A method of, and apparatus for, heating a space |
12/27/1989 | EP0348304A2 Safety and regulating gas valve |
12/27/1989 | EP0348302A1 Heat exchanger with fins for a water heater |
12/20/1989 | EP0189446B1 Electronic power regulation device for an electric hot water apparatus with output temperature regulation |
12/20/1989 | CN2049743U High-efficiency heating, energy-saving and anti-freezing autocontroller |
12/19/1989 | US4888469 Double-regime electric heating convector |
12/12/1989 | US4886018 Boiler element |
12/12/1989 | US4886017 Group eight metalon support |
12/07/1989 | DE3818070A1 Safety temperature cutout (limiter) |
12/06/1989 | EP0344341A1 Electric storage heating apparatus |
11/30/1989 | DE3916142A1 Method for burning a fuel/primary-air mixture, as well as gas burner and sectional boiler for carrying out this method |
11/30/1989 | DE3816817A1 Electric instantaneous water heater |
11/23/1989 | DE3817441A1 Electric instantaneous water heater |
11/16/1989 | DE3815687A1 Water guiding device of a flow heater |
11/14/1989 | US4879959 Swirl combustion apparatus |
11/14/1989 | US4879801 Cathodically protected water heater |