IPC Classification

Class code (prefix) Descriptions Number of results
F27B 1/00 Shaft or like vertical or substantially vertical furnaces
F27B 1/02 Shaft or like vertical or substantially vertical furnaces with two or more shafts or chambers, e.g. multi-storey
F27B 1/04 Combinations or arrangements of shafts
F27B 1/06 Shaft or like vertical or substantially vertical furnaces of other than up-draught type
F27B 1/08 Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge
F27B 1/09 Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge heated electrically
F27B 1/10 Details, accessories or equipment specially adapted for furnaces of these types
F27B 1/12 Shells or casingsSupports therefor
F27B 1/14 Arrangements of linings
F27B 1/16 Arrangements of tuyères
F27B 1/18 Arrangements of dust collectors
F27B 1/20 Arrangement of devices for charging
F27B 1/21 Arrangement of devices for discharging
F27B 1/22 Arrangements of heat-exchange apparatus
F27B 1/24 Cooling arrangements
F27B 1/26 Arrangements of controlling devices
F27B 1/28 Arrangements of monitoring devices, of indicators, of alarm devices
F27B 3/00 Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces
F27B 3/02 Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of single-chamber fixed-hearth type
F27B 3/04 Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of multiple-hearth typeHearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces of multiple-chamber typeCombinations of hearth-type furnaces
F27B 3/06 Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces with movable working chambers or hearths, e.g. tiltable
F27B 3/08 Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
F27B 3/10 Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
F27B 3/12 Working chambers or casingsSupports therefor
F27B 3/14 Arrangements of linings
F27B 3/16 WallsRoofs
F27B 3/18 Arrangement of devices for charging
F27B 3/19 Arrangement of devices for discharging
F27B 3/20 Arrangements of heating devices
F27B 3/22 Arrangements of air or gas supply devices
F27B 3/24 Cooling arrangements
F27B 3/26 Arrangements of heat-exchange apparatus
F27B 3/28 Arrangement of controlling, monitoring, alarm or like devices
F27B 5/00 Muffle furnacesRetort furnacesOther furnaces in which the charge is held completely isolated
F27B 5/02 Muffle furnacesRetort furnacesOther furnaces in which the charge is held completely isolated of multiple-chamber type
F27B 5/04 Muffle furnacesRetort furnacesOther furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
F27B 5/05 Muffle furnacesRetort furnacesOther furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere in vacuum
F27B 5/06 Details, accessories or equipment specially adapted for furnaces of these types
F27B 5/08 Arrangements of linings
F27B 5/10 Muffles
F27B 5/12 Arrangement of devices for charging
F27B 5/13 Arrangement of devices for discharging
F27B 5/14 Arrangements of heating devices
F27B 5/16 Arrangements of air or gas supply devices
F27B 5/18 Arrangement of controlling, monitoring, alarm or like devices
F27B 7/00 Rotary-drum furnaces, i.e. horizontal or slightly inclined
F27B 7/02 Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
F27B 7/04 Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type with longitudinal divisions
F27B 7/06 Rotary-drum furnaces, i.e. horizontal or slightly inclined adapted for treating the charge in vacuum or special atmosphere
F27B 7/08 Rotary-drum furnaces, i.e. horizontal or slightly inclined externally heated
F27B 7/10 Rotary-drum furnaces, i.e. horizontal or slightly inclined internally heated, e.g. by means of passages in the wall
F27B 7/12 Rotary-drum furnaces, i.e. horizontal or slightly inclined tiltable
F27B 7/14 Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
F27B 7/16 Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum
F27B 7/18 Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being movable within the drum
F27B 7/20 Details, accessories or equipment specially adapted for rotary-drum furnaces
F27B 7/22 Rotary drumsSupports therefor
F27B 7/24 Seals between rotary and stationary parts
F27B 7/26 Drives
F27B 7/28 Arrangements of linings
F27B 7/30 Arrangements of partitions
F27B 7/32 Arrangement of devices for charging
F27B 7/33 Arrangement of devices for discharging
F27B 7/34 Arrangements of heating devices
F27B 7/36 Arrangements of air or gas supply devices
F27B 7/38 Arrangements of cooling devices
F27B 7/40 Planetary coolers
F27B 7/42 Arrangement of controlling, monitoring, alarm or like devices
F27B 9/00 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity
F27B 9/02 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-track typeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-chamber typeCombinations of furnaces
F27B 9/04 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
F27B 9/06 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
F27B 9/08 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated heated through chamber walls
F27B 9/10 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated heated by hot air or gas
F27B 9/12 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
F27B 9/14 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment
F27B 9/16 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
F27B 9/18 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path under the action of scrapers or pushers
F27B 9/20 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
F27B 9/22 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path under the action of scrapers or pushers
F27B 9/24 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
F27B 9/26 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path on or in trucks, sleds, or containers
F27B 9/28 Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
F27B 9/30 Details, accessories or equipment specially adapted for furnaces of these types
F27B 9/32 Casings
F27B 9/34 Arrangements of linings
F27B 9/36 Arrangements of heating devices
F27B 9/38 Arrangement of devices for charging
F27B 9/39 Arrangement of devices for discharging
F27B 9/40 Arrangements of controlling or monitoring devices
F27B 11/00 Bell-type furnaces
F27B 13/00 Furnaces with both stationary charge and progression of heating, e.g. of ring type or of the type in which a segmental kiln moves over a stationary charge
F27B 13/02 Furnaces with both stationary charge and progression of heating, e.g. of ring type or of the type in which a segmental kiln moves over a stationary charge of multiple-chamber type with permanent partitionsCombinations of furnaces
F27B 13/04 Furnaces with both stationary charge and progression of heating, e.g. of ring type or of the type in which a segmental kiln moves over a stationary charge of single-chamber type with temporary partitions
F27B 13/06 Details, accessories or equipment specially adapted for furnaces of this type
F27B 13/08 Casings
F27B 13/10 Arrangements of linings
F27B 13/12 Arrangements of heating devices
F27B 13/14 Arrangement of controlling, monitoring, alarm or like devices
F27B 14/00 Crucible or pot furnacesTank furnaces
F27B 14/02 Crucible or pot furnacesTank furnaces with tilting or rocking arrangements
F27B 14/04 Crucible or pot furnacesTank furnaces adapted for treating the charge in vacuum or special atmosphere
F27B 14/06 Crucible or pot furnacesTank furnaces heated electrically, e.g. induction crucible furnaces, with or without any other source of heat
F27B 14/08 Details specially adapted for crucible, pot or tank furnaces
F27B 14/10 Crucibles
F27B 14/12 Covers therefor
F27B 14/14 Arrangements of heating devices
F27B 14/16 Arrangement of devices for charging
F27B 14/18 Arrangement of devices for discharging
F27B 14/20 Arrangement of controlling, monitoring, alarm or like devices
F27B 15/00 Fluidised-bed furnacesOther furnaces using or treating finely-divided materials in dispersion
F27B 15/02 Details, accessories or equipment specially adapted for furnaces of these types
F27B 15/04 CasingsSupports therefor
F27B 15/06 Arrangements of linings
F27B 15/08 Arrangement of devices for charging
F27B 15/09 Arrangement of devices for discharging
F27B 15/10 Arrangements of air or gas supply devices
F27B 15/12 Arrangements of dust collectors
F27B 15/14 Arrangements of heating devices
F27B 15/16 Arrangements of cooling devices
F27B 15/18 Arrangements of controlling devices
F27B 15/20 Arrangements of monitoring devices, of indicators, of alarm devices
F27B 17/00 Furnaces of a kind not covered by any of groups
F27B 17/02 Furnaces of a kind not covered by any of groups specially designed for laboratory use
F27B 19/00 Combinations of different kinds of furnaces that are not all covered by any single one of main groups
F27B 19/02 Combinations of different kinds of furnaces that are not all covered by any single one of main groups combined in one structure
F27B 19/04 Combinations of different kinds of furnaces that are not all covered by any single one of main groups arranged for associated working
F27B 21/00 Open or uncovered sintering apparatusOther heat-treatment apparatus of like construction
F27B 21/02 Sintering grates or tables
F27B 21/04 Sintering pots or sintering pans
F27B 21/06 Endless-strand sintering machines
F27B 21/08 Details, accessories or equipment specially adapted for sintering or like apparatus
F27B 21/10 Arrangement of devices for charging
F27B 21/12 Arrangement of devices for discharging
F27B 21/14 Arrangement of controlling, monitoring, alarm or like devices