WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

F24D DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR (preventing corrosion C23F; water supply in general E03; using steam or condensate extracted or exhausted from steam engine plants for heating purposes F01K 17/02; steam traps F16T; domestic stoves or ranges F24B, C; water or air heaters having heat generating means F24H; combined heating and refrigeration systems F25B; heat exchange apparatus or elements F28; removing furring F28G)

  NOTE - In this subclass, the following expression is used with the meaning indicated:
  - "Central heating system" means a system in which heat is generated or stored at central sources and is distributed by means of a transfer fluid to the spaces or areas to be heated.

  Central Heating Systems

F24D 1/00 Steam central heating systems (F24D 10/00, F24D 11/00 take precedence)

F24D 1/005 ・{in combination with systems for domestic water supply}

F24D 1/02 ・operating with live steam {(F24D 1/005 takes precedence)}

F24D 1/04 ・operating with exhaust steam {(F24D 1/005 takes precedence)}

F24D 1/06 ・operating with superheated steam {(F24D 1/005 takes precedence)}

F24D 1/08 ・Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks

F24D 3/00 Hot-water central heating systems (F24D 10/00, F24D 11/00 take precedence)

F24D 3/005 ・{combined with solar energy (solar heat collectors per se F24J 2/00)}

F24D 3/02 ・with forced circulation, e.g. by pumps (pump constructions F04)

F24D 3/04 ・with the water under high pressure

F24D 3/06 ・・Arrangements or devices for maintaining high pressure

F24D 3/08 ・in combination with systems for domestic hot-water supply

F24D 3/082 ・・{Hot water storage tanks specially adapted therefor}

F24D 3/085 ・・・{Double-walled tanks}

F24D 3/087 ・・{Tap water heat exchangers specially adapted therefore}

F24D 3/10 ・Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks {Hydraulic components of a central heating system}

F24D 3/1008 ・・{expansion tanks}

F24D 3/1016 ・・・{Tanks having a bladder}

F24D 3/1025 ・・・{Compressor controlled pressure heads}

F24D 3/1033 ・・・{with compressed gas cylinder}

F24D 3/1041 ・・・{Flow-through}

F24D 3/105 ・・{pumps combined with multiple way valves}

F24D 3/1058 ・・{disposition of pipes and pipe connections}

F24D 3/1066 ・・・{Distributors for heating liquids}

F24D 3/1075 ・・・・{Built up from modules}

F24D 3/1083 ・・{Filling valves or arrangements for filling}

F24D 3/1091 ・・{Mixing cylinders}

F24D 3/12 ・Tube and panel arrangements for ceiling, wall, or underfloor heating (electric underfloor heating F24D 13/02; special adaptations of floors for incorporating ducts, e.g. for heating or ventilating, E04B 5/48; building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, E04C 1/39; building elements of relatively thin form for the construction of parts of buildings with special adaptations for auxiliary purposes, e.g. serving for locating conduits, E04C 2/52)

F24D 3/122 ・・{Details}

F24D 3/125 ・・・{Hydraulic pipe connections}

F24D 3/127 ・・・{Mechanical connections between panels}

F24D 3/14 ・・incorporated in a ceiling, wall or floor

F24D 3/141 ・・・{Tube mountings specially adapted therefor}

F24D 3/142 ・・・・{integrated in prefab construction elements}

F24D 3/143 ・・・・{Tube clips with barbed anchors}

F24D 3/144 ・・・・{Clips for fastening heating tubes on a reinforcement net or mesh, e.g. mesh for concrete reinforcement}

F24D 3/145 ・・・{Convecting elements concealed in wall or floor}

F24D 3/146 ・・・{Tubes specially adapted for underfloor heating}

F24D 3/147 ・・・{arranged in facades}

F24D 3/148 ・・・{with heat spreading plates}

F24D 3/149 ・・・{Tube-laying devices}

F24D 3/16 ・・mounted on, or adjacent to, a ceiling, wall or floor

F24D 3/165 ・・・{Suspended radiant heating ceiling}

F24D 3/18 ・using heat pumps

F24D 5/00 Hot-air central heating systems (F24D 10/00, F24D 11/00 take precedence; air conditioning F24F); Exhaust gas central heating systems

F24D 5/005 ・{combined with solar energy (solar heat collectors per se F24J 2/00)}

F24D 5/02 ・operating with discharge of hot air into the space or area to be heated

F24D 5/04 ・・with return of the air or the air-heater

F24D 5/06 ・operating without discharge of hot air into the space or area to be heated

F24D 5/08 ・・with hot air led through radiators

F24D 5/10 ・・with hot air led through heat-exchange ducts in the walls, floor or ceiling

F24D 5/12 ・using heat pumps

F24D 7/00 Central heating systems employing heat-transfer fluids not covered by groups F24D 1/00 to F24D 5/00, e.g. oil, salt, gas (F24D 10/00, F24D 11/00 take precedence)

F24D 9/00 Central heating systems employing combinations of heat transfer fluids covered by two or more of groups F24D 1/00 to F24D 7/00(F24D 10/00, F24D 11/00 take precedence)

F24D 9/02 ・Hot water and steam systems

F24D 10/00 District heating systems

F24D 10/003 ・{Domestic delivery stations having a heat exchanger}

F24D 10/006 ・{Direct domestic delivery stations}

F24D 11/00 Central heating systems using heat accumulated in storage masses (self-contained storage heating units F24D 15/02; storage masses, see the relevant subclasses)

F24D 11/001 ・{district heating system}

F24D 11/002 ・{water heating system}

F24D 11/003 ・・{combined with solar energy}

F24D 11/004 ・・{with conventional supplementary heat source}

F24D 11/005 ・・{with recuperation of waste heat}

F24D 11/006 ・{air heating system}

F24D 11/007 ・・{combined with solar energy}

F24D 11/008 ・・{with conventional supplementary heat source}

F24D 11/009 ・・{with recuperation of waste heat}

F24D 11/02 ・using heat pumps {using heat-pumps (for producing heat in general F25B 29/00)}

F24D 11/0207 ・・{district heating system}

F24D 11/0214 ・・{water heating system}

F24D 11/0221 ・・・{combined with solar energy}

F24D 11/0228 ・・・{combined with conventional heater}

F24D 11/0235 ・・・{with recuperation of waste energy}

F24D 11/0242 ・・・・{contained in exhausted air}

F24D 11/025 ・・・・{contained in waste water}

F24D 11/0257 ・・{air heating system}

F24D 11/0264 ・・・{combined with solar energy}

F24D 11/0271 ・・・{combined with conventional energy}

F24D 11/0278 ・・・{with recuperation of waste energy}

F24D 11/0285 ・・・・{contained in exhausted air}

F24D 11/0292 ・・・・{contained in waste water}

F24D 12/00 Other central heating systems

F24D 12/02 ・having more than one heat source (F24D 3/18, F24D 5/12, F24D 11/02 take precedence)

  Other domestic- or space-heating systems

F24D 13/00 Electric heating systems (electric water or air heaters F24H)

F24D 13/02 ・solely using resistance heating, e.g. under-floor heating

F24D 13/022 ・・{resistances incorporated in construction elements}

F24D 13/024 ・・・{in walls, floors, ceilings}

F24D 13/026 ・・・{in door, windows}

F24D 13/028 ・・・{Glass panels, e.g. mirrors, design radiators, etc.}

F24D 13/04 ・using electric heating of heat-transfer fluid in separate units of the system

F24D 15/00 Other domestic- or space-heating systems

F24D 15/02 ・consisting of self-contained heating units, e.g. storage heaters

F24D 15/04 ・using heat pumps

F24D 17/00 Domestic hot-water supply systems (combined with domestic- or space-heating systems F24D 1/00 to F24D 15/00)

F24D 17/0005 ・{using recuperation of waste heat (F24D 17/0036 takes precedence)}

F24D 17/001 ・・{with accumulation of heated water}

F24D 17/0015 ・{using solar energy (F24D 17/0036 takes precedence)}

F24D 17/0021 ・・{with accumulation of the heated water}

F24D 17/0026 ・{with conventional heating means (F24D 17/0036 takes precedence)}

F24D 17/0031 ・・{with accumulation of the heated water}

F24D 17/0036 ・{with combination of different kinds of heating means}

F24D 17/0042 ・・{recuperated waste heat and solar energy}

F24D 17/0047 ・・・{with accumulation of the heated water}

F24D 17/0052 ・・{recuperated waste heat and conventional heating means}

F24D 17/0057 ・・・{with accumulation of the heated water}

F24D 17/0063 ・・{solar energy and conventional heaters}

F24D 17/0068 ・・・{with accumulation of the heated water}

F24D 17/0073 ・{Arrangements for preventing the occurrence or proliferation of micro-organisms in the water}

F24D 17/0078 ・{Recirculation systems}

F24D 17/0084 ・・{Coaxial tubings}

F24D 17/0089 ・{Additional heating means, e.g. electric heated buffer tanks or electric continuous flow heaters, located close to the consumer, e.g. directly before the water taps in bathrooms, in domestic hot water lines}

F24D 17/0094 ・{Recovering of cold water}

F24D 17/02 ・using heat pumps

F24D 19/00 Details (of water or air heaters F24H 9/00; of heat-exchange or heat-transfer apparatus, of general application F28F)

F24D 19/0002 ・{Means for connecting central heating radiators to circulation pipes}

F24D 19/0004 ・・{In a one pipe system}

F24D 19/0007 ・・・{Comprising regulation means}

F24D 19/0009 ・・{In a two pipe system}

F24D 19/0012 ・・・{Comprising regulation means}

F24D 19/0014 ・・{Connection means adaptable for one and two pipe systems}

F24D 19/0017 ・・{Connections between supply and inlet or outlet of central heating radiators}

F24D 19/0019 ・・・{Means for adapting connections}

F24D 19/0021 ・・・{Flexible tubes or hoses}

F24D 19/0024 ・・・{Connections for plate radiators}

F24D 19/0026 ・・{Places of the inlet on the radiator}

F24D 19/0029 ・・・{on a top corner}

F24D 19/0031 ・・・{on the top in the middle}

F24D 19/0034 ・・・{on a bottom corner}

F24D 19/0036 ・・・{on the bottom in the middle}

F24D 19/0039 ・・{Places of the outlet on the radiator}

F24D 19/0041 ・・・{on the top in the middle}

F24D 19/0043 ・・・{on the opposite top corner}

F24D 19/0046 ・・・{on the top on the same side}

F24D 19/0048 ・・・{on the bottom in the middle}

F24D 19/0051 ・・・{on the bottom on the opposite corner}

F24D 19/0053 ・・・{on the bottom on the same side}

F24D 19/0056 ・・{Supplies from the central heating system}

F24D 19/0058 ・・・{coming out the floor}

F24D 19/006 ・・・・{Alongside the radiator}

F24D 19/0063 ・・・・{under the radiator}

F24D 19/0065 ・・・{coming out the wall}

F24D 19/0068 ・・・・{alongside the radiator}

F24D 19/007 ・・・・{under the radiator}

F24D 19/0073 ・・{Means for changing the flow of the fluid inside a radiator}

F24D 19/0075 ・・{Valves for isolating the radiator from the system}

F24D 19/0078 ・・{Plugs}

F24D 19/008 ・{Details related to central heating radiators}

F24D 19/0082 ・・{Humidifiers for radiators}

F24D 19/0085 ・・{Fresh air entries for air entering the room to be heated by the radiator}

F24D 19/0087 ・・{Fan arrangements for forced convection}

F24D 19/009 ・・{Magnets, e.g. for attaching a cover}

F24D 19/0092 ・{Devices for preventing or removing corrosion, slime or scale}

F24D 19/0095 ・{Devices for preventing damage by freezing}

F24D 19/0097 ・{Casings or frame structures for hydraulic components}

F24D 19/02 ・Arrangement of mountings or supports for radiators

F24D 19/0203 ・・{Types of supporting means}

F24D 19/0206 ・・・{Tube shaped supports inserted into a wall}

F24D 19/0209 ・・・{Supporting means having bracket}

F24D 19/0213 ・・・{Floor mounted supporting means}

F24D 19/0216 ・・・{Supporting means having a rail}

F24D 19/022 ・・{Constructional details of supporting means for radiators}

F24D 19/0223 ・・・{Distance pieces between the radiator and the wall}

F24D 19/0226 ・・・{Additional means supporting the process of mounting}

F24D 19/023 ・・・{Radiators having fixed suspension means for connecting the radiator to the support means}

F24D 19/0233 ・・・{Templates for installing the radiator}

F24D 19/0236 ・・・{Water tubes or pipes forming part of the supporting means}

F24D 19/024 ・・{Functioning details of supporting means for radiators}

F24D 19/0243 ・・・{Means for moving the radiator horizontally to adjust the radiator position}

F24D 19/0246 ・・・{Means for moving the radiator vertically to adjust the radiator position}

F24D 19/025 ・・・{Eccentric means for moving the radiator vertically}

F24D 19/0253 ・・・{Adjusting a dimension, e.g. length, of the radiator support, e.g. telescopic rails}

F24D 19/0256 ・・・{Radiators clamped by supporting means}

F24D 19/0259 ・・・・{Radiators clamped by supporting means around a column or tube}

F24D 19/0263 ・・・・{Radiators clamped by supporting means between two columns or tubes}

F24D 19/0273 ・・・{Radiators fixed in order to prevent undesired detachment}

F24D 19/0276 ・・・・{Radiators fixed on the bottom}

F24D 19/0279 ・・・・{Radiators fixed on the sides}

F24D 19/0283 ・・・・{Radiators fixed on the top}

F24D 19/0286 ・・・・{Radiators fixed using a spring}

F24D 19/0289 ・・・・{Radiators fixed using a flexible clip}

F24D 19/0293 ・・・{Radiators rotating without being demounted}

F24D 19/04 ・・in skirtings

F24D 19/06 ・Casings, cover lids or ornamental panels, for radiators

F24D 19/061 ・・{Radiator shelves}

F24D 19/062 ・・{Heat reflecting or insulating shields}

F24D 19/064 ・・{Coverings not directly attached to a radiator, e.g. box-like coverings}

F24D 19/065 ・・{Grids attached to the radiator and covering its top}

F24D 19/067 ・・{Front coverings attached to the radiator}

F24D 19/068 ・・{Side coverings attached to the radiator}

F24D 19/08 ・Arrangements for drainage, venting or aerating (valves for drainage F16K, e.g. F16K 21/00; for venting or aerating F16K 24/00)

F24D 19/081 ・・{for steam heating systems}

F24D 19/082 ・・{for water heating systems}

F24D 19/083 ・・・{Venting arrangements}

F24D 19/085 ・・・・{Arrangement of venting valves for central heating radiators}

F24D 19/086 ・・・・・{hand-operated}

F24D 19/087 ・・・・・{automatic}

F24D 19/088 ・・・{Draining arrangements}

F24D 19/10 ・Arrangement or mounting of control or safety devices (control valves F16K ; only the heater being controlled F24H 9/20){including control or safety methods}

F24D 19/1003 ・・{for steam heating systems}

F24D 19/1006 ・・{for water heating systems}

F24D 19/1009 ・・・{for central heating}

F24D 19/1012 ・・・・{by regulating the speed of a pump}

F24D 19/1015 ・・・・{using a valve or valves}

F24D 19/1018 ・・・・・{Radiator valves}

F24D 19/1021 ・・・・・{a by pass valve}

F24D 19/1024 ・・・・・{a multiple way valve}

F24D 19/1027 ・・・・・・{hand operated}

F24D 19/103 ・・・・・・{bimetal operated}

F24D 19/1033 ・・・・・・{motor operated}

F24D 19/1036 ・・・・・{Having differential pressure measurement facilities}

F24D 19/1039 ・・・・{the system uses a heat pump}

F24D 19/1042 ・・・・{the system uses solar energy}

F24D 19/1045 ・・・・{the system uses a heat pump and solar energy}

F24D 19/1048 ・・・・{Counting of energy consumption}

F24D 19/1051 ・・・{for domestic hot water}

F24D 19/1054 ・・・・{the system uses a heat pump}

F24D 19/1057 ・・・・{the system uses solar energy}

F24D 19/106 ・・・・{the system uses a heat pump and solar energy}

F24D 19/1063 ・・・・{counting of energy consumption}

F24D 19/1066 ・・・{for the combination of central heating and domestic hot water}

F24D 19/1069 ・・・・{regulation in function of the temperature of the domestic hot water}

F24D 19/1072 ・・・・{the system uses a heat pump}

F24D 19/1075 ・・・・{the system uses solar energy}

F24D 19/1078 ・・・・{the system uses a heat pump and solar energy}

F24D 19/1081 ・・・・{counting of energy consumption}

F24D 19/1084 ・・{for air heating systems}

F24D 19/1087 ・・・{system using a heat pump}

F24D 19/109 ・・・{system using solar energy}

F24D 19/1093 ・・・{system using a heat pump and solar energy}

F24D 19/1096 ・・{for electric heating systems}

F24D 2019/00 Details (of water or air heaters F24H 9/00; of heat-exchange or heat-transfer apparatus, of general application F28F)

F24D 2019/02 ・Arrangement of mountings or supports for radiators

F24D 2019/024 ・・{Functioning details of supporting means for radiators}

F24D 2019/0256 ・・・{Radiators clamped by supporting means}

F24D 2019/0266 ・・・・Radiators clamped by supporting means around a column or tube

F24D 2019/0269 ・・・・Radiators clamped by supporting means between two columns or tubes

F24D 2019/0296 ・・having spring loaded holding means

F24D 2200/00 Heat sources or energy sources

F24D 2200/02 ・Photovoltaic energy

F24D 2200/04 ・Gas or oil fired boiler

F24D 2200/043 ・・More than one gas or oil fired boiler

F24D 2200/046 ・・Condensing boilers

F24D 2200/06 ・Solid fuel fired boiler

F24D 2200/062 ・・Coal fired boilers

F24D 2200/065 ・・Wood fired boilers

F24D 2200/067 ・・・Pellet fired boilers

F24D 2200/07 ・Solid fuel burners

F24D 2200/08 ・Electric heater

F24D 2200/10 ・Fire place

F24D 2200/11 ・Geothermal energy

F24D 2200/115 ・・Involving mains water supply

F24D 2200/12 ・Heat pump

F24D 2200/123 ・・Compression type heat pumps

F24D 2200/126 ・・Absorption type heat pumps

F24D 2200/13 ・Heat from a district heating network

F24D 2200/14 ・Solar energy

F24D 2200/15 ・Wind energy

F24D 2200/16 ・Waste heat

F24D 2200/18 ・・Flue gas recuperation

F24D 2200/19 ・・Fuel cells

F24D 2200/20 ・・Sewage water

F24D 2200/22 ・・Ventilation air

F24D 2200/24 ・・Refrigeration

F24D 2200/26 ・・Internal combustion engine

F24D 2200/28 ・・Biological processes

F24D 2200/29 ・・Electrical devices, e.g. computers, servers

F24D 2200/30 ・・Friction

F24D 2200/31 ・・Air conditioning systems

F24D 2200/32 ・involving multiple heat sources in combination or as alternative heat sources

  Central Heating Systems

F24D 2220/00 Components of central heating installations excluding heat sources

F24D 2220/003 ・Generic central heating systems

F24D 2220/006 ・Parts of a building integrally forming part of heating systems, e.g. a wall as a heat storing mass

F24D 2220/02 ・Fluid distribution means

F24D 2220/0207 ・・Pumps

F24D 2220/0214 ・・Inlets or outlets

F24D 2220/0221 ・・Mixing cylinders

F24D 2220/0228 ・・Branched distribution conduits

F24D 2220/0235 ・・Three-way-valves

F24D 2220/0242 ・・Multiple way valves

F24D 2220/025 ・・Check valves

F24D 2220/0257 ・・Thermostatic valves

F24D 2220/0264 ・・Hydraulic balancing valves

F24D 2220/0271 ・・Valves

F24D 2220/0278 ・・Expansion vessels

F24D 2220/0285 ・・Pipe sections

F24D 2220/0292 ・・Fluid distribution networks

F24D 2220/04 ・Sensors

F24D 2220/042 ・・Temperature sensors

F24D 2220/044 ・・Flow sensors

F24D 2220/046 ・・Pressure sensors

F24D 2220/048 ・・Level sensors, e.g. water level sensors

F24D 2220/06 ・Heat exchangers

F24D 2220/07 ・Heat pipes

F24D 2220/08 ・Storage tanks

F24D 2220/10 ・Heat storage materials, e.g. phase change materials or static water enclosed in a space

F24D 2220/20 ・Heat consumers

F24D 2220/2009 ・・Radiators

F24D 2220/2018 ・・・Column radiators having vertically extending tubes

F24D 2220/2027 ・・・Convectors (radiators wherein heat transfer mainly takes place by convection)

F24D 2220/2036 ・・・Electric radiators

F24D 2220/2045 ・・・Radiators having horizontally extending tubes

F24D 2220/2054 ・・・Panel radiators with or without extended convection surfaces

F24D 2220/2063 ・・・Central heating radiators having heat storage material incorporated

F24D 2220/2072 ・・・Radiators being skirting boards between floor and wall or ledges between wall and ceiling

F24D 2220/2081 ・・Floor or wall heating panels

F24D 2220/209 ・・Sanitary water taps

F24D 2240/00 Characterizing positions e.g. of sensors, inlets, outlets

F24D 2240/10 ・Placed within or inside of

F24D 2240/12 ・Placed outside of

F24D 2240/20 ・Placed at top position

F24D 2240/22 ・Placed at bottom position

F24D 2240/24 ・Placed at centre position

F24D 2240/243 ・・Vertically centred

F24D 2240/246 ・・Horizontally centred

F24D 2240/26 ・Vertically distributed at fixed positions, e.g. multiple sensors distributed over the height of a tank, or a vertical inlet distribution pipe having a plurality of orifices

F24D 2240/28 ・Horizontally distributed at fixed positions

F24D 2240/30 ・At vertical variable positions, e.g. a movable inlet pipe within a tank

F24D 2240/32 ・At horizontal variable positions

--- Edited by Muguruma Professional Engineer Office(C), 2013 ---