CPC Definition - Subclass F27B
This place covers:
Furnaces in general, kilns, ovens, retorts or furnaces for open sintering.
This place does not cover:
Specially adapted for bakery ovens | |
Specially adapted for glass melting furnaces | |
Specially adapted for coke or gas-making apparatus | |
Specially adapted for apparatus for cracking hydrocarbons | |
Specially adapted for blast furnaces | |
Specially adapted for converters for making steel | |
Specially adapted for furnaces for heat treating metal | |
Furnaces for electro-slag or arc re-melting of metals | |
Enamelling ovens |
Attention is drawn to the following places, which may be of interest for search:
Indexing Codes should be used as additional information or in case an EC symbol is given and more detailed Indexing Codes are existing, these more detailed Indexing Codes should also be given.
This place does not cover:
Blast furnaces |
Attention is drawn to the following places, which may be of interest for search:
Preheating, burning, calcining or cooling lime, magnesia or dolomite |
This place does not cover:
Bell and hopper arrangement for blast furnaces and appliances for distributing the burden |
Attention is drawn to the following places, which may be of interest for search:
Charging for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Controlling devices for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Monitoring devices for furnaces in details |
This place does not cover:
Manufacture of steel in electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric furnace |
Attention is drawn to the following places, which may be of interest for search:
Linings in general |
Attention is drawn to the following places, which may be of interest for search:
Heated by electric discharge in details | |
Electric heating elements or systems for furnaces in details |
This place does not cover:
Charging of electric furnaces |
Attention is drawn to the following places, which may be of interest for search:
Devices for charging in details |
This place does not cover:
Burners in electric arc furnaces |
Attention is drawn to the following places, which may be of interest for search:
Burners | |
Heating elements or systems in details | |
Electric heating |
This place does not cover:
Lances or injectors for converters | |
Injectors for electric arc furnaces |
Attention is drawn to the following places, which may be of interest for search:
Oxygen blowing | |
Introducing a fluid jet or current into the charge in details |
Attention is drawn to the following places, which may be of interest for search:
Heat-exchange apparatus |
Attention is drawn to the following places, which may be of interest for search:
Monitoring devices for furnaces in details | F21D21/00 |
Controlling devices for furnaces in details |
This place does not cover:
Attention is drawn to the following places, which may be of interest for search:
Forming, maintaining or circulating atmosphere in heating chambers in details |
This place does not cover:
Charging for metallic articles for heat treatment |
Attention is drawn to the following places, which may be of interest for search:
Charging devices for furnaces in details |
This place does not cover:
Discharging for metallic articles for heat treatment |
Attention is drawn to the following places, which may be of interest for search:
Discharging devices for furnaces in details |
This place does not cover:
Methods of heating during heat treatment |
Attention is drawn to the following places, which may be of interest for search:
Arrangement of elements for electric heating in or on furnaces in details | |
Heating elements or systems in details |
This place does not cover:
Attention is drawn to the following places, which may be of interest for search:
Supplying steam, vapour, gases or liquids in heating chambers |
This place does not cover:
Process control of heat treatment |
Attention is drawn to the following places, which may be of interest for search:
Monitoring devices for furnaces in details | F21D21/00 |
Controlling devices for furnaces in details |
This place does not cover:
Rotary retorts | |
Destructive distillation of solid carbonaceous material with indirect heating in rotary ovens or retorts | |
Making pig iron in rotary kilns | |
Making spongy iron or liquid steel, by direct processes in rotary furnaces | |
Rotary furnaces for heat treatment |
This place does not cover:
Heat treatment in controlled atmosphere |
Attention is drawn to the following places, which may be of interest for search:
Forming or maintaining special atmospheres or vacuum in heating chambers in details |
Attention is drawn to the following places, which may be of interest for search:
Seals for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Linings for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Partitions for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Monitoring devices for furnaces in details | F21D21/00 |
Controlling devices for furnaces in details |
This place covers:
Furnaces through which the charge is moved mechanically, e.g. tunnel furnaces; Similar furnaces in which the charge moves by gravity
This place does not cover:
Method of heat treatment in inert gas | |
Continuous furnace for wire with a controlled atmosphere |
Attention is drawn to the following places, which may be of interest for search:
Forming or maintaining special atmospheres or vacuum in heating chambers in details |
This place does not cover:
Method of heating during heat treatment |
Attention is drawn to the following places, which may be of interest for search:
Arrangement of elements for electric heating in or on furnaces in details | |
Heating elements or systems in details |
This place does not cover:
Furnaces through which the charge is moved mechanically, for treating continuous lengths of work | |
Furnaces for heat treatment through which the charge is moved in horizontal path; up or down |
Attention is drawn to the following places, which may be of interest for search:
Travelling or movable supports or containers for the charge; Furnace cars |
This place does not cover:
Rolls in heat treating furnaces | |
Rolls in continuous heat treating furnaces |
Attention is drawn to the following places, which may be of interest for search:
Transport by conveyors in general | B65G/00 |
Attention is drawn to the following places, which may be of interest for search:
Travelling or movable supports or containers for the charge; Furnace cars |
Attention is drawn to the following places, which may be of interest for search:
Linings for furnaces in details |
This place does not cover:
Heating metal strips |
Attention is drawn to the following places, which may be of interest for search:
Heating elements or system for furnaces in details |
This place does not cover:
Charging metallic articles in heat treatment furnaces |
Attention is drawn to the following places, which may be of interest for search:
Devices for charging of furnaces in details |
This place does not cover:
Discharging metallic articles in heat treatment furnaces |
Attention is drawn to the following places, which may be of interest for search:
Devices for discharging of furnaces in details |
This place covers:
Arrangement of controlling or monitoring devices
This place does not cover:
Process control for heat treatment |
Attention is drawn to the following places, which may be of interest for search:
Monitoring devices for furnaces in details | F21D21/00 |
Controlling devices for furnaces in details |
This place does not cover:
Bell-type furnaces for treating metal strips or wire |
Attention is drawn to the following places, which may be of interest for search:
Linings for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Heating elements or systems in details; especially burners |
Attention is drawn to the following places, which may be of interest for search:
Monitoring devices for furnaces in details | F21D21/00 |
Controlling devices for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Single crystal growth |
Attention is drawn to the following places, which may be of interest for search:
Electric heating elements or systems | |
Electric heating elements in general |
Attention is drawn to the following places, which may be of interest for search:
Crucibles for single crystal growth |
Attention is drawn to the following places, which may be of interest for search:
Covers for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Heating elements or systems for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Monitoring devices for furnaces in details | F21D21/00 |
Controlling devices for furnaces in details |
This place covers:
Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion.
This place does not cover:
Making spongy iron or liquid steel, by direct processes in fluidised bed furnaces or apparatus containing a dispersion of the material | |
Heating metallic strips in fluidized beds |
Attention is drawn to the following places, which may be of interest for search:
General apparatuses for carrying out chemical or physical processes in a fluidised-bed reactor | |
Heat exchange apparatus using fluidized bed |
Attention is drawn to the following places, which may be of interest for search:
Linings for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Devices for charging of furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Devices for discharging of furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Controlling devices for furnaces in details |
Attention is drawn to the following places, which may be of interest for search:
Monitoring devices for furnaces in details |
This place covers:
Furnaces of a kind not covered by any preceding group;
open field furnaces for burning bricks;
chamber-type furnaces, also adapted for treating semiconductor wafers;
furnaces, where the floor consists of the support carrying the charge, e.g. car type furnaces;
furnaces for burning bricks or pottery;
Attention is drawn to the following places, which may be of interest for search:
Furnaces through which the charge is moved mechanically | |
Apparatuses for treating semiconductors/wafers |
This place covers:
Furnaces especially designed for laboratory use.
Furnaces for dental work-pieces
Attention is drawn to the following places, which may be of interest for search:
Devices for soldering, casting, moulding or melting dental prostheses |