IPC 6 English version F24D !A-F24D 19/10

F24D-F24D01910

SECTION F– MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F 24

HEATING; RANGES; VENTILATING (protecting plants by heating in gardens, orchards, or forests A 01 G 13/06; baking ovens and apparatus A 21 B; cooking devices other than ranges A 47 J; forging B 21 J, B 21 K; specially adapted for vehicles, see the relevant subclasses of classes B 60 to B 64; combustion apparatus in general F 23; drying F 26 B; ovens in general F 27; electric heating elements or arrangements H 05 B)

F 24 D

DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR (preventing corrosion C 23 F; water supply in general E 03; using steam or condensate extracted or exhausted from steam engine plants for heating purposes F 01 K 17/02; steam traps F 16 T; domestic stoves or ranges F 24 B, F 24 C; water or air heaters having heat generating means F 24 H; combined heating and refrigeration systems F 25 B; heat exchange apparatus or elements F 28; removing furring F 28 G)

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. [5]

Central heating systems

Steam central heating systems (F 24 D 10/00, F 24 D 11/00 take precedence)

operating with live steam

operating with exhaust steam

operating with superheated steam

Feed-line arrangements, e.g. providing for one-pipe system

Hot-water central heating systems (F 24 D 10/00, F 24 D 11/00 take precedence)

with forced circulation, e.g. by pumps

with the water under high pressure

Arrangements or devices for maintaining high pressure

in combination with systems for domestic hot-water supply

Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks

Tube and panel arrangements for ceiling, wall, or underfloor heating (electric underfloor heating F 24 D 13/02; special adaptations of floors for incorporating ducts, e.g. for heating or ventilating, E 04 B 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, E 04 C 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, E 04 C 2/52) [4]

incorporated in a ceiling, wall or floor [4]

mounted on, or adjacent to, a ceiling, wall or floor [4]

using heat pumps [5]

Hot-air central heating systems (F 24 D 10/00, F 24 D 11/00 take precedence; air conditioning F 24 F); Exhaust-gas central heating systems

operating with discharge of hot air into the space or area to be heated

with return of the air to the air heater

operating without discharge of hot air into the space or area to be heated

with hot air led through radiators

with hot air led through heat-exchange ducts in the walls, floor, or ceiling

using heat pumps [5]

Central heating systems employing heat-transfer fluids not covered by groups F 24 D 1/00 to F 24 D 5/00, e.g. oil, salt, gas (F 24 D 10/00, F 24 D 11/00 take precedence)

Central heating systems employing combinations of heat-transfer fluids covered by two or more of groups F 24 D 1/00 to F 24 D 7/00 (F 24 D 10/00, F 24 D 11/00 take precedence)

Hot water and steam systems

10/

District heating systems [5]

11/

Central heating systems using heat accumulated in storage masses (self-contained storage heating units F 24 D 15/02; storage masses, see the relevant subclasses)

11/

using heat pumps

12/

Other central heating systems

12/

having more than one heat source (F 24 D 3/18, F 24 D 5/12, F 24 D 11/02 take precedence) [5]

Other domestic- or space-heating systems

13/

Electric heating systems (electric water or air heaters F 24 H)

13/

solely using resistance heating, e.g. underfloor heating

13/

using electric heating of heat-transfer fluid in separate units of the system

15/

Other domestic- or space-heating systems

15/

consisting of self-contained heating units, e.g. storage heaters [3]

15/

using heat pumps [5]

17/

Domestic hot-water supply systems (combined with domestic- or space-heating systems F 24 D 1/00 to F 24 D 15/00)

17/

using heat pumps [5]

19/

Details (of water or air heaters F 24 H 9/00; of heat-exchange or heat-transfer apparatus, of general application F 28 F) [3]

19/

Arrangement of mountings or supports for radiators [3]

19/

in skirtings [3]

19/

Casings, cover lids or ornamental panels, for radiators [3]

19/

Arrangements for drainage, venting or aerating (valves for drainage F 16 K, e.g. F 16 K 21/00, for venting or aerating F 16 K 24/00) [3]

19/

Arrangement or mounting of control or safety devices (control valves F 16 K; only the heater being controlled F 24 H 9/20) [3]