WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

F24H　FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL (heat-transfer, heat-exchange or heat-storage materials C09K 5/00; tube furnaces for thermal non-catalytic cracking C10G 9/20; devices, e.g. valves, for venting and aerating enclosures F16K 24/00; steam traps or like apparatus F16T; steam generation F22; combustion apparatus F23; domestic stoves or ranges F24B, F24C; domestic- or space-heating systems F24D; furnaces, kilns, ovens, retorts F27; heat-exchangers F28; electric heating elements or arrangements H05B)

F24H 1/00 Water heaters having heat generating means, e.g. boiler, flow- heater, water-storage heater (F24H 7/00, F24H 8/00 take precedence; details F24H 9/00; steam boilers F22B; domestic stoves or ranges with additional provisions for heating water F24B 9/00, F24C 13/00)

F24H 1/0009 ・{of the reduced pressure or vacuum steam type}

F24H 1/0018 ・{using electric energy supply}

F24H 1/0027 ・{using fluid fuel}

F24H 1/0036 ・・{of the sealed type}

F24H 1/0045 ・・{with catalytic combustion}

F24H 1/0054 ・{Gas- or oil-fired immersion heaters for open containers or ponds}

F24H 1/0063 ・{using solid fuel}

F24H 1/0072 ・{Special adaptations}

F24H 1/0081 ・・{for bath tubs}

F24H 1/009 ・・{for vehicle systems}

F24H 1/06 ・Portable or mobile, e.g. collapsible

F24H 1/08 ・Packaged or self-contained boilers, i.e. water heaters with control devices and pump in a single unit

F24H 1/10 ・Continuous-flow heaters, i.e. in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium (F24H 1/50 takes precedence)

F24H 1/101 ・・{using electric energy supply}

F24H 1/102 ・・・{with resistance}

F24H 1/103 ・・・・{with bare resistances in direct contact with the fluid}

F24H 1/105 ・・・・{formed by the tube through which the fluid flows}

F24H 1/106 ・・・{with electrodes}

F24H 1/107 ・・{using fluid fuel}

F24H 1/108 ・・{using solid fuel}

F24H 1/12 ・・in which the water is kept separate from the heating medium

F24H 1/121 ・・・{using electric energy supply}

F24H 1/122 ・・・・{combined with storage tank}

F24H 1/124 ・・・{using fluid fuel}

F24H 1/125 ・・・・{combined with storage tank}

F24H 1/127 ・・・{using solid fuel}

F24H 1/128 ・・・・{combined with storage tank}

F24H 1/14 ・・・by tubes, e.g. bent in serpentine form

F24H 1/142 ・・・・{using electric energy supply}

F24H 1/145 ・・・・{using fluid fuel}

F24H 1/147 ・・・・{using solid fuel}

F24H 1/16 ・・・・helically or spirally coiled

F24H 1/162 ・・・・・{using electrical energy supply}

F24H 1/165 ・・・・・{using fluid fuel}

F24H 1/167 ・・・・・{using solid fuel}

F24H 1/18 ・Water storage heaters (combined with water-heating stoves for central heating F24H 1/22; F24H 1/50 takes precedence)

F24H 1/181 ・・{Construction of the tank (containers or tanks in general B65D, e.g. metal containers B65D 7/00)}

F24H 1/182 ・・・{Insulation (containers with thermal insulation in general B65D 81/38)}

F24H 1/183 ・・・{Inner linings (linings for containers in general B65D 25/14, B65D 87/14)}

F24H 1/185 ・・{using electric energy supply (F24H 1/18F takes precedence)}

F24H 1/186 ・・{using fluid fuel}

F24H 1/187 ・・{using solid fuel}

F24H 1/188 ・・{with means for compensating water expansion}

F24H 1/20 ・・with immersed heating elements, e.g. electric elements or furnace tubes

F24H 1/201 ・・・{using electric energy supply}

F24H 1/202 ・・・・{with resistances}

F24H 1/203 ・・・・{with electrodes}

F24H 1/205 ・・・{with furnace tubes}

F24H 1/206 ・・・・{with submerged combustion chamber}

F24H 1/207 ・・・・{with water tubes}

F24H 1/208 ・・・{with tubes filled with heat transfer fluid}

F24H 1/22 ・Water heaters other than continuous-flow or water storage heaters, e.g. water-heaters for central heating (F24H 1/50 takes precedence)

F24H 1/225 ・・{electrical central heating boilers}

F24H 1/24 ・・with water mantle surrounding the combustion chamber or chambers (F24H 1/40, F24H 1/44 take precedence)

F24H 1/26 ・・・the water mantle forming an integral body

F24H 1/263 ・・・・{with a dry-wall combustion chamber}

F24H 1/28 ・・・・including one or more furnace or fire tubes

F24H 1/282 ・・・・・{with flue gas passages built-up by coaxial water mantles}

F24H 1/285 ・・・・・{with the fire tubes arranged alongside the combustion chamber}

F24H 1/287 ・・・・・{with the fire tubes arranged in line with the combustion chamber}

F24H 1/30 ・・・the water mantle being built up from sections

F24H 1/32 ・・・・with vertical sections arranged side by side

F24H 1/34 ・・with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side (F24H 1/24, F24H 1/44 take precedence)

F24H 1/36 ・・・the water chamber including one or more fire tubes

F24H 1/38 ・・with water contained in separate elements, e.g. radiator-type element (F24H 1/40, F24H 1/44 take precedence)

F24H 1/40 ・・with water tube or tubes (F24H 1/44 takes precedence)

F24H 1/403 ・・・{the water tubes being arranged in one or more circles around the burner}

F24H 1/406 ・・・{the tubes forming a membrane wall}

F24H 1/41 ・・・in serpentine form

F24H 1/43 ・・・helically or spirally coiled

F24H 1/44 ・・with combinations of two or more of the types covered by groups F24H 1/24 to F24H 1/40, {e.g. boilers having a combination of features covered by F24H 1/24 to F24H 1/40}

F24H 1/445 ・・・{with integrated flue gas condenser}

F24H 1/46 ・Water heaters having plural combustion chambers

F24H 1/48 ・Water heaters for central heating incorporating heaters for domestic water

F24H 1/50 ・・incorporating domestic water tanks

F24H 1/52 ・・incorporating heat exchangers for domestic water (F24H 1/50 takes precedence)

F24H 1/523 ・・・{Heat exchangers for sanitary water directly heated by the burner}

F24H 1/526 ・・・{Pipes in pipe heat exchangers for sanitary water}

F24H 3/00 Air heaters having heat generating means (F24H 7/00, F24H 8/00 take precedence; details F24H 9/00; domestic stoves or ranges with additional provision for convection heating of air F24B, F24C)

F24H 3/002 ・{using electric energy supply}

F24H 3/004 ・・{with a closed circuit for a heat transfer liquid}

F24H 3/006 ・{using fluid combustibles}

F24H 3/008 ・{using solid combustibles}

F24H 3/02 ・with forced circulation (F24H 3/12 takes precedence)

F24H 3/022 ・・{using electric energy supply}

F24H 3/025 ・・{using fluid combustibles}

F24H 3/027 ・・{using solid combustibles}

F24H 3/04 ・・the air being in direct contact with the heating medium, e.g. electric heating element

F24H 3/0405 ・・・{using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between (F24H 3/06, F24H 3/08, F24H 3/10 take precedence)}

F24H 3/0411 ・・・・{for domestic or space-heating systems}

F24H 3/0417 ・・・・・{portable or mobile}

F24H 3/0423 ・・・・{hand-held air guns}

F24H 3/0429 ・・・・{For vehicles}

F24H 3/0435 ・・・・・{Structures comprising heat spreading elements in the form of fins}

F24H 3/0441 ・・・・・{Interfaces between the electrodes of a resistive heating element and the power supply means}

F24H 3/0447 ・・・・・・{Forms of the electrode terminals, e.g. tongues or clips}

F24H 3/0452 ・・・・・{Frame constructions}

F24H 3/0458 ・・・・・・{One-piece frames}

F24H 3/0464 ・・・・・・{Two-piece frames, e.g. two-shell frames, also including frames as a central body with two covers}

F24H 3/047 ・・・・・・{Multiple-piece frames assembled on their four or more edges}

F24H 3/0476 ・・・・・・{Means for putting the electric heaters in the frame under strain, e.g. with springs}

F24H 3/0482 ・・・・・・{Frames with integrated fan}

F24H 3/0488 ・・・{using fluid combustibles}

F24H 3/0494 ・・・{using solid combustibles}

F24H 3/06 ・・the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators

F24H 3/062 ・・・{using electric energy supply; the heating medium being the resistive element; F24H 3/08, F24H 3/10 takes precedence}

F24H 3/065 ・・・{using fluid combustibles}

F24H 3/067 ・・・{using solid combustibles}

F24H 3/08 ・・・by tubes

F24H 3/081 ・・・・{using electric energy supply}

F24H 3/082 ・・・・・{The tubes being an electrical isolator containing the heater}

F24H 3/084 ・・・・・{The tubes being an electrode for the heater}

F24H 3/085 ・・・・・{The tubes containing an electrically heated intermediate fluid, e.g. water}

F24H 3/087 ・・・・{using fluid combustibles}

F24H 3/088 ・・・・{using solid combustibles}

F24H 3/10 ・・・by plates

F24H 3/102 ・・・・{using electric energy supply}

F24H 3/105 ・・・・{using fluid combustibles}

F24H 3/107 ・・・・{using solid combustibles}

F24H 3/12 ・with additional heating arrangements

F24H 4/00 Fluid heaters using heat pumps

F24H 4/02 ・Liquid heaters

F24H 4/04 ・・Storage heaters

F24H 4/06 ・Gas heaters

F24H 6/00 Combined water and air heaters (F24H 8/00 takes precedence)

F24H 7/00 Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release (domestic stoves or ranges with additional heat storage masses F24B 1/24, F24C 15/34)

F24H 7/002 ・{with electrical energy supply}

F24H 7/005 ・{with fluid fuel}

F24H 7/007 ・{with solid fuel}

F24H 7/02 ・the released heat being conveyed to a transfer fluid, e.g. air, water

F24H 7/0208 ・・{with electrical energy supply}

F24H 7/0216 ・・・{the transfer fluid being air}

F24H 7/0225 ・・・・{with supplementary heating means}

F24H 7/0233 ・・・{the transfer fluid being a liquid}

F24H 7/0241 ・・・・{with supplementary heating means}

F24H 7/025 ・・{with fluid fuel}

F24H 7/0258 ・・・{the transfer fluid being air}

F24H 7/0266 ・・・{the transfer fluid being a liquid}

F24H 7/0275 ・・{with solid fuel}

F24H 7/0283 ・・・{the transfer fluid being air}

F24H 7/0291 ・・・{the transfer fluid being a liquid}

F24H 7/04 ・・with forced circulation of the transfer fluid

F24H 7/0408 ・・・{with electrical energy supply}

F24H 7/0416 ・・・・{the transfer fluid being air}

F24H 7/0425 ・・・・・{with supplementary heating means}

F24H 7/0433 ・・・・{the transfer medium being a liquid}

F24H 7/0441 ・・・・・{with supplementary heating means}

F24H 7/045 ・・・{with fluid fuel}

F24H 7/0458 ・・・・{the transfer fluid being air}

F24H 7/0466 ・・・・{the transfer fluid being a liquid}

F24H 7/0475 ・・・{with solid fuel}

F24H 7/0483 ・・・・{the transfer fluid being air}

F24H 7/0491 ・・・・{the transfer fluid being a liquid}

F24H 7/06 ・the released heat being radiated

F24H 7/062 ・・{with electrical energy supply}

F24H 7/065 ・・{with fluid fuel}

F24H 7/067 ・・{with solid fuel}

F24H 8/00 Fluid heaters having heat-generating means specially adapted for extracting latent heat from flue gases by means of condensation

F24H 8/003 ・{having means for moistening the combustion air with condensate from the combustion gases}

F24H 8/006 ・{Means for removing condensate from the heater}

F24H 9/00 Details

F24H 9/0005 ・{for water heaters}

F24H 9/001 ・・{Guiding means}

F24H 9/0015 ・・・{in water channels}

F24H 9/0021 ・・・・{Sleeves surrounding heating elements or heating pipes, e.g. pipes filled with heat transfer fluid, for guiding heated liquid}

F24H 9/0026 ・・・{in combustion gas channels}

F24H 9/0031 ・・・・{with means for changing or adapting the path of the flue gas}

F24H 9/0036 ・・{Dispositions against condensation of combustion products}

F24H 9/0042 ・・{Cleaning arrangements}

F24H 9/0047 ・・{Protections against galvanic corrosion, e.g. cathodic protections, electrolytic protections}

F24H 9/0052 ・{for air heaters}

F24H 9/0057 ・・{Guiding means}

F24H 9/0063 ・・・{in air channels}

F24H 9/0068 ・・・{in combustion gas channels}

F24H 9/0073 ・・{Arrangement or mounting of means for forcing the circulation of air}

F24H 9/0078 ・・・{for storage heaters}

F24H 9/0084 ・{Combustion air preheating}

F24H 9/0089 ・・{by double wall boiler mantle}

F24H 9/0094 ・{having means for transporting the boiler}

F24H 9/02 ・Casings; Cover lids; Ornamental panels

F24H 9/06 ・Arrangement of mountings or supports {for heaters, e.g. boilers, other than space heating radiators (space heating radiators F24D 19/02)}

F24H 9/12 ・Connecting heaters to circulation pipes (pipe joints in general F16L)

F24H 9/122 ・・{for water heaters}

F24H 9/124 ・・・{storage heaters}

F24H 9/126 ・・・・{Arrangement of inlet valves used therewith (valves per se F16K)}

F24H 9/128 ・・・{continuous flow heaters}

F24H 9/14 ・Connecting different sections, e.g. in water-heaters (in radiators F28F 9/26)

F24H 9/142 ・・{Connecting hydraulic components}

F24H 9/144 ・・・{Valve seats, piping and heat exchanger connections integrated into a one-piece hydraulic unit}

F24H 9/146 ・・{Connecting elements of a heat exchanger}

F24H 9/148 ・・{Arrangements of boiler components on a frame or within a casing to build the fluid heater, e.g. boiler}

F24H 9/16 ・Arrangements for water drainage (valves for drainage F16K, e.g. F16K 21/00; in pipes or pipe systems in general F16L 55/00; in domestic- or space-heating systems F24D 19/08)

F24H 9/165 ・・{Devices for retaining leaking fluid from heaters}

F24H 9/18 ・Arrangement or mounting of grates, burners, or heating elements (burners F23D; grates F23H; electric heating elements H05B)

F24H 9/1809 ・・{for water heaters}

F24H 9/1818 ・・・{electric heating means}

F24H 9/1827 ・・・・{PTC Positive temperature coefficient resistor}

F24H 9/1836 ・・・{fluid combustible heating means}

F24H 9/1845 ・・・{solid combustible heating means}

F24H 9/1854 ・・{for air heaters}

F24H 9/1863 ・・・{electric heating means}

F24H 9/1872 ・・・・{PTC Positive temperature coefficient resistor}

F24H 9/1881 ・・・{fluid combustible heating means}

F24H 9/189 ・・・{solid combustible heating means}

F24H 9/20 ・Arrangement or mounting of control or safety devices {or methods}(control valves F16K; safety devices for burners F23D; combustion control devices F23N; of systems comprising a heater, see the relevant subclasses, e.g. of control heating systems F24D 19/10; automatic switching for electric heating apparatus H05B 1/02)

F24H 9/2007 ・・{for water heaters}

F24H 9/2014 ・・・{for heaters using electrical energy supply}

F24H 9/2021 ・・・・{Storage heaters}

F24H 9/2028 ・・・・{Continuous-flow heaters}

F24H 9/2035 ・・・{for heaters using fluid combustibles}

F24H 9/2042 ・・・・{Preventing or detecting the return of combustion gases}

F24H 9/205 ・・・・・{Closing the energy supply}

F24H 9/2057 ・・・{for heaters using solid combustibles}

F24H 9/2064 ・・{for air heaters}

F24H 9/2071 ・・・{for heaters using electrical energy supply}

F24H 9/2078 ・・・・{storage heaters}

F24H 9/2085 ・・・{for heaters using fluid combustibles}

F24H 9/2092 ・・・{for heaters using solid combustibles}

F24H 2001/00 Water heaters having heat generating means, e.g. boiler, flow- heater, water-storage heater (F24H 7/00, F24H 8/00 take precedence; details F24H 9/00; steam boilers F22B; domestic stoves or ranges with additional provisions for heating water F24B 9/00, F24C 13/00)

F24H 2001/22 ・Water heaters other than continuous-flow or water storage heaters, e.g. water-heaters for central heating (F24H 1/50 takes precedence)

F24H 2001/24 ・・with water mantle surrounding the combustion chamber or chambers (F24H 1/40, F24H 1/44 take precedence)

F24H 2001/26 ・・・the water mantle forming an integral body

F24H 2001/266 ・・・・with a water cooled element coaxial in combustion chamber

F24H 2203/00 ** to be deleted **

F24H 2210/00 Burner and heat exchanger are integrated

F24H 2220/00 Measures for environmentally correct disposal

F24H 2230/00 Solid fuel fired boiler

F24H 2230/02 ・Solid and fluid fuel fired boilers

F24H 2240/00 Fluid heaters having electrical generators

F24H 2240/01 ・Batteries, electrical energy storage device

F24H 2240/02 ・with combustion engines

F24H 2240/04 ・・External combustion engines

F24H 2240/06 ・・Internal combustion engines

F24H 2240/08 ・with peltier elements

F24H 2240/09 ・with photovoltaic cells

F24H 2240/10 ・with fuel cells

F24H 2240/12 ・with thermodynamic cycle for converting thermal energy to mechanical power to produce electrical energy

F24H 2240/122 ・・Stirling cycles

F24H 2240/125 ・・Carnot cycles

F24H 2240/127 ・・Rankine cycles, e.g. steam heat engines

F24H 2250/00 Electrical heat generating means

F24H 2250/02 ・Resistances

F24H 2250/04 ・Positive or negative temperature coefficients, e.g. PTC, NTC

F24H 2250/06 ・Peltier

F24H 2250/08 ・Induction

F24H 2250/10 ・Electrodes

F24H 2250/12 ・Microwaves

F24H 2250/14 ・Lamps