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 Shaft or like vertical or substantially vertical furnaces - Details, accessories, or equipment peculiar to furnaces of these types
F27B 1/12 Shells or casings; Supports 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 type; Electric arc furnaces
F27B 3/02 Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces of single-chamber fixed-hearth type
F27B 3/04 Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces of multiple-chamber type; Combinations of hearth-type furnaces
F27B 3/06 Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces with movable working chambers or hearths, e.g. tiltable
F27B 3/08 Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
F27B 3/10 Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces - Details, accessories, or equipment, e.g. dust-collectors, peculiar to hearth-type furnaces
F27B 3/12 Working chambers or casings; Supports therefor
F27B 3/14 Arrangements of linings
F27B 3/16 Walls; Roofs
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 furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
F27B 5/02 Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated of multiple-chamber type
F27B 5/04 Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
F27B 5/05 Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere in vacuum
F27B 5/06 Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated - Details, accessories, or equipment peculiar to 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 Rotary-drum furnaces, i.e. horizontal or slightly inclined - Details, accessories, or equipment peculiar to rotary-drum furnaces
F27B 7/22 Rotary drums; Supports 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-chamber type; Combinations 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 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 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 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 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 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 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 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 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 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 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 Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity - Details, accessories, or equipment peculiar to 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, of type in which segmental kiln moves over stationary charge
F27B 13/02 Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge of multiple-chamber type with permanent partitions; Combinations of furnaces
F27B 13/04 Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge of single-chamber type with temporary partitions
F27B 13/06 Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge - Details, accessories, or equipment peculiar to 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 furnaces; Tank furnaces
F27B 14/02 Crucible or pot furnaces; Tank furnaces with tilting or rocking arrangements
F27B 14/04 Crucible or pot furnaces; Tank furnaces adapted for treating the charge in vacuum or special atmosphere
F27B 14/06 Crucible or pot furnaces; Tank furnaces heated electrically, e.g. induction crucible furnaces, with or without any other source of heat
F27B 14/08 Crucible or pot furnaces; Tank furnaces - Details peculiar to 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 furnaces; Other furnaces using or treating finely-divided materials in dispersion
F27B 15/02 Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion - Details, accessories, or equipment peculiar to furnaces of these types
F27B 15/04 Casings; Supports 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 apparatus; Other 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 Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction - Details, accessories, or equipment peculiar to 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