CPC Definition - Subclass F24B
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.
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.
This place does not cover:
For solid fuels in combination with gaseous fuels, liquid fuels or other kinds of energy supply |
Attention is drawn to the following places, which may be of interest for search:
Bakers' ovens; machines or equipment for baking | |
Combustion apparatus using only solid fuel | |
Combustion apparatus using fluent fuel | |
Burners | |
Grates; cleaning or raking grates | |
Removal of combustion products (ashes) or combustion residues | |
Constructional details of combustion chambers | |
Ignition | |
Other domestic stoves or ranges; details of domestic stoves or ranges of general application | |
Domestic- or space-heating systems; domestic hot water supply systems | |
Fluid heaters, e.g. water or air heaters, having heat generating means | |
Heat-exchange apparatus |
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 |
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.
Attention is drawn to the following places, which may be of interest for search:
Catalytic processes | |
Solid fuels | |
Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release |
This place covers:
Heaters for burning solid fuel, e.g. brazier, fire-pits or fire basket.
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Heaters for cooking |
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.
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.
This place does not cover:
Stoves with open fires characterised by use of heat exchange means |
Attention is drawn to the following places, which may be of interest for search:
Baffles or deflectors for air or combustions products | |
Air heaters having heat generating means | |
Heat-exchange apparatus - air heaters for domestic or space-heating systems, the heat being derived from steam or hot gases, e.g. exhaust gases |
This place covers:
Stoves or ranges comprising additional provisions for heating water. The water could be used as domestic water or for central heating.
This place does not cover:
Stoves with open fires with additional provisions for cooking | |
Stoves with open fires for heating water |
Attention is drawn to the following places, which may be of interest for search:
Solid fuel fired boiler for central heating installations | |
Water heaters having heat generating means, e.g. boiler, flow-heater, water-storage heater | |
Solid fuel fired boiler for fluid heaters, e.g. water heaters |
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.
This place does not cover:
Component parts or accessories for stoves with open-fires |
Attention is drawn to the following places, which may be of interest for search:
Ceramic materials | |
Grates; cleaning or raking of grates | |
Removing ash, clinker, or slag from combustion chamber | |
Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers | |
Joints or connections for chimneys or flues | |
Mouths or inlet holes for chimneys or flues | |
Casings, linings, walls for combustion chambers | |
Means for supervising combustion, e.g. window |
Attention is drawn to the following places, which may be of interest for search:
Ceramic materials | |
Grates in general | |
Casings, linings, walls for combustion chambers in general |
Attention is drawn to the following places, which may be of interest for search:
Feeding solid fuel to combustion apparatus in general |
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.
Attention is drawn to the following places, which may be of interest for search:
Charcoal igniting devices for barbecues | |
Firelighters | |
Bellows | |
Incandescent igniters for igniting solid fuel | |
Gas pokers |