CPC Definition - Subclass F24B

Last Updated Version: 2016.11
DOMESTIC STOVES OR RANGES FOR SOLID FUELS
Definition statement

This place covers:

Domestic stoves or ranges for solid fuel. The solid fuel can be in the form of lumps or pieces, e.g. coal, briquettes or firewood, or pulverulent or granulated material, e.g. wood pellets.

Relationships with other classification places

A stove is an appliance used for generating heat. A range is an appliance used for cooking.

Stoves or ranges wherein the fuel is not restricted to solid fuel, e.g. gaseous fuels, liquid fuels or using electricity are classified in F24C.

General function-oriented aspects of methods and apparatus for combustion of solid fuel are classified in F23B.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Bakers' ovens; machines or equipment for baking

A21B

Combustion apparatus using only solid fuel

F23B

Combustion apparatus using fluent fuel

F23C

Burners

F23D

Grates; cleaning or raking grates

F23H

Removal of combustion products (ashes) or combustion residues

F23J

Constructional details of combustion chambers

F23M

Ignition

F23Q

Other domestic stoves or ranges; details of domestic stoves or ranges of general application

F24C

Domestic- or space-heating systems; domestic hot water supply systems

F24D

Fluid heaters, e.g. water or air heaters, having heat generating means

F24H

Heat-exchange apparatus

F28D

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Combustion chamber

a chamber in which fuel is burned to establish a self-supporting fire or flame and which surrounds that fire or flame

Burner

a device by which fluent or pulverised fuel is passed to a combustion space where it burns to produce a self-supporting flame. A burner includes means for feeding air that are arranged in immediate connections with a fuel feeding conduit, for example concentric with it.

Air

a mixture of gases containing free oxygen and able to promote or support combustion

Primary air

air supplied to the burning fuel, e.g. together with the fuel, in order to liberate combustible gases

Secondary air

air supplied to the combustible gases liberated by the primary air in order to complete their combustion. The expression "secondary air" covers "tertiary air" etc.

Combustion

the direct combustion of oxygen gas, e.g. in air, and a burnable substance

Combustion zone

the part of an apparatus where the reaction takes place between air and fuel

Stoves or ranges
Definition statement

This place covers:

Closed stoves and stoves with open fires, e.g. fireplaces. A fireplace comprising a door, optional with a window for a visual aspect, is considered as a stove with open fire.

Ranges for cooking with optionally a baking oven.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Catalytic processes

B01D 53/86

Solid fuels

C10L 5/02

Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release

F24H 7/00

Heaters not covered by group F24B 1/00, e.g. charcoal brazier (for cooking A47J 27/00 - A47J 37/00)
Definition statement

This place covers:

Heaters for burning solid fuel, e.g. brazier, fire-pits or fire basket.

Combustion-air or flue-gas circulation in or around stoves or ranges (stoves with open fires with air-handling means F24B 1/185)
Definition statement

This place covers:

Combustion-air or flue-gas circulation in or around stoves or ranges; The supply of combustion air in or around stoves. The air could be primary air supplied to the burning fuel and/or secondary air for completing combustion.

Circulation of flue gases in or around stoves or ranges in order to improve heat exchange.

Stoves, ranges or flue-gas ducts, with additional provisions for convection heating (stoves with open fires characterised by use of heat exchange means F24B 1/185; air heaters having heat generating means F24H 3/00)
Definition statement

This place covers:

Provisions for convection heating to improve the heat exchange between the stove or range and the surrounding. These provisions could be placed external, e.g. annular device surrounding a flue-gas duct or placed internal.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Baffles or deflectors for air or combustions products

F23M 9/00

Air heaters having heat generating means

F24H 3/00

Heat-exchange apparatus - air heaters for domestic or space-heating systems, the heat being derived from steam or hot gases, e.g. exhaust gases

F28D 21/0008

Stoves, ranges or flue-gas ducts, with additional provisions for heating water (F24B 1/182, F24B 1/183 take precedence)
Definition statement

This place covers:

Stoves or ranges comprising additional provisions for heating water. The water could be used as domestic water or for central heating.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Solid fuel fired boiler for central heating installations

F24D 2200/06

Water heaters having heat generating means, e.g. boiler, flow-heater, water-storage heater

F24H 1/00

Solid fuel fired boiler for fluid heaters, e.g. water heaters

F24H 2230/00

Details solely applicable to stoves or ranges burning solid fuels (component parts or accessories for stoves with open-fires F24B 1/191; removing ash, clinker or slag from combustion chambers F23J 1/00; removing solid residues from passages or chambers beyond the fire F23J 3/00; joints or connections for chimneys or flues F23J 13/04; mouths or inlet holes for chimneys or flues F23J 13/06; means for supervising combustion F23M 11/04)
Definition statement

This place covers:

Details of stoves, e.g. doors for closed stoves, arrangements for removal of ashes, arrangements or mountings of fire-grates or arrangements for feeding solid fuel.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Components parts or accessories for stoves with open-fires

F24B 1/191

Ceramic materials

C04B 33/00, C04B 35/00

Grates; cleaning or raking of grates

F23H

Removing ash, clinker, or slag from combustion chamber

F23J 1/00

Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers

F23J 3/00

Joints or connections for chimneys or flues

F23J 13/04

Mouths or inlet holes for chimneys or flues

F23J 13/06

Casings, linings, walls for combustion chambers

F23M 5/00

Means for supervising combustion, e.g. window

F23M 11/04

Implements for use in connection with stoves or ranges (ash sieves {in general} B07B; fire lighters C10L 11/00; removal of ashes F23J; other devices for igniting F23Q)
Definition statement

This place covers:

Devices used in connection with stoves, e.g. scratchers, pokers, ash-sifters, coal boxes, shovels to remove ashes and grippers for manipulation of firewood.

Devices for starting a fire or stirring up the fire.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Charcoal igniting devices for barbecues

A47J 37/079

Crushing, pulverising or disintegrating in general

B02C

Sieving, screening, sifting, or sorting solid materials using networks, grating, grids, or the like

B07B 1/00

Manufacture of firelighters

C10L 11/00

Removal or treatment of combustion products or combustion residues

F23J

Incandescent igniters for igniting solid fuel

F23Q 7/02