| Patents for F24D 19 - Details (15,010) |
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| 12/19/1991 | DE4022935C1 Regulating heating of single room, in hotel - using electronic control unit to operate electrically adjustable valves in hot water supply of respective radiators |
| 12/19/1991 | DE4018855A1 Heating regulator programme data input and updating |
| 12/19/1991 | DE4018853A1 Rapid heating of water in low-temp. boiler - is actuated by functional key operation with circulation inhibited until temp. is close to desired value |
| 12/17/1991 | US5072879 Heating system control |
| 12/17/1991 | US5072659 Heated door |
| 12/11/1991 | EP0460399A2 Centrifugal pump and gasboiler including the same |
| 12/05/1991 | DE4017695A1 Continuous-flow electric water heater e.g. for shower - detects discharged water temp. to regulate quantity of water fed through heating stage |
| 11/26/1991 | US5067473 Heater with a humidifier |
| 11/21/1991 | DE4115798A1 Heating arrangement four-way mixer - maintains minimum water temp. at container inlet to reduce corrosion |
| 11/20/1991 | WO1991018246A1 Configuration and method for controlling the volume of water in circulation from boiler circuit to heating circuit in a hot water heating system |
| 11/13/1991 | CN2088662U Automatic air exhausting pot |
| 11/06/1991 | EP0455330A2 Deaeration system for a boiler |
| 11/06/1991 | EP0455184A1 Process for heating and/or cooling a building with solar energy using transparent insulation and plant for utilizing same |
| 11/06/1991 | EP0454754A1 Device for the temperating of premises. |
| 10/24/1991 | CA2040812A1 Combination of casettes for insulation of radiators |
| 10/22/1991 | US5058804 Automatic hot water supply apparatus |
| 10/10/1991 | DE4018929C1 Hot water central heating with heat exchange system - has three-way valve between circulation pumps for specified pump connections |
| 10/10/1991 | DE4010793A1 Central heating radiator vent vessel - comprises bottle with tool opening and shutting vent valve |
| 10/02/1991 | DE4010082A1 Expansible dowel made from thin-walled metal tube - is expanded in two regions by double coned expander element |
| 10/02/1991 | DE4009774A1 Heating regulator programme data input and updating |
| 10/02/1991 | DE4009773A1 Individual adjustment for central heating boilers |
| 10/01/1991 | CA1289932C Control device for a radiator valve |
| 10/01/1991 | CA1289926C Vav valve with pwm hot water coil |
| 09/26/1991 | DE4107482A1 Air conditioning device for room - is equipped with heater and agitator to blow air past swivelling vanes through outlet |
| 09/26/1991 | DE4005450A1 Relay control for low-temp. space heating boiler - closes mixer of hot and cold water when boiler temp. falls short of lower min. value |
| 09/25/1991 | EP0448473A1 Radiator with horizontally juxtaposed heating elements, through which a heating medium flows |
| 09/25/1991 | EP0447851A2 An improved three-way valve |
| 09/19/1991 | DE4035115A1 Drawing off hot drinking water from heating installation - involves two separate circuits with pressurised fresh cold water supply to secondary circuit |
| 09/19/1991 | DE4008193A1 Control circuit for underfloor electric heating - has programmed heating with correction for external conditions and for thermal variations |
| 09/19/1991 | DE4008166A1 Monitoring fluidic systems with regulation and-or choke elements - by comparing element speeds with limit values to enable selection of control method |
| 09/17/1991 | US5048599 Leak tolerant liquid cooling system employing an improved air purging mechanism |
| 09/12/1991 | DE4006964A1 Gas fired water heater - has thermostat to restrict outflow of water until water is at required temperature |
| 09/11/1991 | EP0445310A1 Method and device for in-temperature regulation of a multi-boiler heating system |
| 09/05/1991 | DE4006494A1 Heating regulator programme data input and updating - updates basic temp. programme obtained from entered required temps. |
| 09/05/1991 | DE4006492A1 Individual adjustment for central heating boilers |
| 09/04/1991 | EP0444879A1 Improved control valve |
| 09/04/1991 | EP0444403A1 Method for controlling an installation with solar collectors |
| 09/04/1991 | EP0444308A2 Method of putting in and changing programme data of a heating controller |
| 09/04/1991 | EP0444296A1 Method for the individual adjustment of a controller's characteristics |
| 09/04/1991 | EP0444269A2 Method for regulating the load of a pump |
| 09/04/1991 | EP0444048A1 Flat temperature-regulating device. |
| 08/29/1991 | DE4006186A1 Electrically-operated pump regulation system - corrects rotation rate of electric pump motor dependent on measured flow velocity |
| 08/27/1991 | US5042524 Demand recovery hot water system |
| 08/27/1991 | CA1288146C Temperature control system using a single ramp rate curve for control of a multiplant environmental unit |
| 08/27/1991 | CA1288145C Temperature control system for control of a multiplant environment unit |
| 08/22/1991 | WO1991012478A1 A single-plate water heating radiator |
| 08/21/1991 | EP0442459A1 Multi-purpose bracket |
| 08/21/1991 | CN2083270U Automatic exhaust water-stopping valve |
| 08/20/1991 | US5040725 Adaptive controller for forced hot water heating systems |
| 08/14/1991 | DE4003771A1 Domestic water heater operation with accelerated warm=up - involves suppression of cold water flow until gas heater supply valve is opened and water heated |
| 08/13/1991 | US5039006 Home heating system draft controller |
| 08/07/1991 | EP0354914B1 Heat exchanging apparatus |
| 07/31/1991 | CN1053485A Room temp. controlling method of water heating system and device thereof |
| 07/30/1991 | CA1286945C Device for ventilating a closed conduit system |
| 07/18/1991 | DE4000907A1 Air humidifier and conditioner - consists of vaporiser bath for water which includes heater inside it and has steam ducts |
| 07/16/1991 | WO1991010852A1 Apparatus for measurement and control, respectively, of temperature and/or pressure |
| 07/04/1991 | DE4040747A1 Mounting bracket for central heating radiator - has adjuster for height of radiator |
| 07/03/1991 | CN1013065B Control method for providing heat energy of heat energy transfering apparat |
| 06/26/1991 | EP0433913A1 Multipurpose shelf |
| 06/25/1991 | CA1285253C Accessory for the thermostatic valve of a radiator |
| 06/20/1991 | DE4039644A1 Central heating overflow valve - has flat annular sealing face on valve plate with peripheral radiused edge |
| 06/19/1991 | EP0432341A2 Method of and means for controlling a heating system |
| 06/18/1991 | US5024379 Variable capacity heating appliance |
| 06/12/1991 | EP0432071A1 Water circuit selector for boiler for central heating and sanitary hot water |
| 06/12/1991 | EP0431491A1 Heat pump type heating apparatus and control method thereof |
| 06/11/1991 | US5022459 Flexible hose heat exchanger construction with combination locating and thawing wire |
| 06/05/1991 | EP0430309A2 Combination valve for feed conduit |
| 05/15/1991 | EP0427655A1 Central heating installation |
| 05/15/1991 | EP0427121A2 Method of making possible the quick tap of domestic water |
| 05/08/1991 | DE3936771A1 Distribution valve for floor heating pipes - has bore in head spindle connected to hot water chamber |
| 04/25/1991 | DE4033163A1 Heating installation control - includes pump which is activated on time basis when running temp. falls below preset value |
| 04/17/1991 | EP0422738A1 Apparatus for dispensing quantities of water of variable temperatures |
| 04/11/1991 | DE3932327A1 Controlling boiler water temp. in central heating - changing switching difference with additional dependence on characteristic |
| 04/10/1991 | EP0421975A1 Covering for radiators |
| 04/10/1991 | EP0421312A2 Device for controlling the operation of the flow heater reservoir by tapping of domestic hot water. |
| 04/10/1991 | CN2074884U High-efficient energy-saving feedback heat supply automatic controllor |
| 04/09/1991 | CA1282684C Humidifier for convection baseboard heater |
| 04/03/1991 | EP0420308A1 Continuous enclosure |
| 04/03/1991 | CN2074432U Feedback-type energy-saving heating controller |
| 03/28/1991 | DE4028501A1 Controlling heating of rooms for economy - using real=time temp. valves and stored building parameters to delay switching of heating appts. for max. period |
| 03/28/1991 | DE4027965A1 Water heating system in building - includes storage tank with external heat-exchanger and circulating pump |
| 02/28/1991 | DE3940495C1 Summer control for central heating - maintains bathroom heating by separate switching command on temp below preset value |
| 02/27/1991 | EP0413837A1 Heat emission device |
| 02/14/1991 | DE4023439A1 Room temperature regulator - has valve-controlled heater and temp. sensor with heating resistor influencing valve position connected to supply via converter |
| 02/12/1991 | CA1280101C Heating method and apparatus |
| 02/06/1991 | EP0411390A1 Apparatus for heat output |
| 02/06/1991 | CN2070886U Full-automatic aerating tank |
| 01/29/1991 | WO1991002199A1 Process and device for converting solar energy to heat |
| 01/29/1991 | CA2065391A1 Process and device for converting solar energy to heat |
| 01/23/1991 | EP0409739A1 Radiator for central heating |
| 01/23/1991 | EP0408788A1 Device consisting of a heat exchanger with integrated heat accumulator for domestic hot water supply |
| 01/23/1991 | CN2069976U New-type energy-saving heating stovepipe |
| 01/21/1991 | WO1991001470A1 Supply air terminal device |
| 01/21/1991 | CA2063391A1 Supply air terminal device |
| 01/17/1991 | DE3923027A1 Pump speed adjustment device for central heating installation - has differential pressure switch in parallel with manometer for instigating alarm and shut-down |
| 01/02/1991 | EP0405136A2 Installation for hot water preparation |
| 01/02/1991 | CN2068659U Energy-saving thermostatic valve for water heating system controlled by indoor temp. |
| 01/01/1991 | US4980933 Washing device for parts of human body |
| 12/27/1990 | EP0403806A1 Centrifugal pump or fan |
| 12/26/1990 | CN2068211U Automatic bleed valve |