Version: 2025.01
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This area was updated. Please refer to the CPC Notices of Changes and Notices of Editorial Corrections for more information.
CPC | COOPERATIVE PATENT CLASSIFICATION | |||||||||||||||
| F27B | FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS [2025-01] WARNING
|
F27B 1/00 | Shaft or like vertical or substantially vertical furnaces [2025-01] |
F27B 1/005 | . | {wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces} [2013-01] |
F27B 1/02 | . | with two or more shafts or chambers, e.g. multi-storey [2013-01] |
F27B 1/025 | . . | {with fore-hearth} [2013-01] |
F27B 1/04 | . . | Combinations or arrangements of shafts [2013-01] |
F27B 1/06 | . | of other than up-draught type [2013-01] |
F27B 1/08 | . | heated otherwise than by solid fuel mixed with charge [2013-01] |
F27B 1/10 | . | Details, accessories or equipment specially adapted for furnaces of these types [2025-01] |
F27B 1/12 | . . | Shells or casings; Supports therefor [2013-01] |
F27B 1/16 | . . | Arrangements of tuyeres [2013-01] |
F27B 1/18 | . . | Arrangements of dust collectors [2013-01] |
F27B 1/20 | . . | Arrangements of devices for charging [2013-01] |
F27B 1/21 | . . | Arrangements of devices for discharging [2013-01] |
F27B 1/22 | . . | Arrangements of heat-exchange apparatus [2025-01] |
F27B 1/24 | . . | Cooling arrangements [2013-01] |
F27B 1/26 | . . | Arrangements of controlling devices [2013-01] |
F27B 1/28 | . . | Arrangements of monitoring devices, of indicators, of alarm devices [2013-01] |
F27B 3/00 | Hearth-type furnaces, e.g. of reverberatory type (F27B 9/00, F27B 11/00, F27B 13/00, F27B 14/00, F27B 15/00, F27B 21/00 take precedence); Electric arc furnaces {; Tank furnaces} [2025-01] |
F27B 3/002 | . | {Siemens-Martin type furnaces} [2013-01] |
F27B 3/005 | . . | {Port construction} [2013-01] |
F27B 3/007 | . . . | {Removable burner head} [2013-01] |
F27B 3/02 | . | of single-chamber fixed-hearth type [2013-01] |
F27B 3/04 | . | of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces [2013-01] |
F27B 3/045 | . . | {Multiple chambers, e.g. one of which is used for charging} [2013-01] |
F27B 3/06 | . | with movable working chambers or hearths, e.g. tiltable {, oscillating or describing a composed movement} [2017-08] |
F27B 3/065 | . . | {tiltable} [2013-01] |
F27B 3/08 | . | heated electrically, with or without any other source of heat [2013-01] |
F27B 3/085 | . . | {Arc furnaces} [2013-01] |
F27B 3/10 | . | Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces [2025-01] |
F27B 3/105 | . . | {Slag chamber} [2013-01] |
F27B 3/12 | . . | Working chambers or casings; Supports therefor [2013-01] |
F27B 2003/125 | . . . | {Hearths} [2013-01] |
F27B 3/14 | . . . | Arrangements of linings [2013-01] |
F27B 3/16 | . . . | Walls; Roofs [2013-01] |
F27B 2003/165 | . . . . | {Roofs} [2013-01] |
F27B 3/18 | . . | Arrangements of devices for charging [2013-01] |
F27B 3/183 | . . . | {Charging of arc furnaces vertically through the roof, e.g. in three points} [2013-01] |
F27B 3/186 | . . . . | {Charging in a vertical chamber adjacent to the melting chamber} [2013-01] |
F27B 3/19 | . . | Arrangements of devices for discharging [2013-01] |
F27B 3/20 | . . | Arrangements of heating devices [2013-01] |
F27B 3/205 | . . . | {Burners} [2013-01] |
F27B 3/22 | . . | Arrangements of air or gas supply devices [2013-01] |
F27B 3/225 | . . . | {Oxygen blowing} [2013-01] |
F27B 3/24 | . . | Cooling arrangements [2013-01] |
F27B 3/26 | . . | Arrangements of heat-exchange apparatus [2013-01] |
F27B 3/263 | . . . | {Regenerators} [2013-01] |
F27B 3/266 | . . . . | {Exhaust gases reversing flow devices} [2013-01] |
F27B 3/28 | . . | Arrangement of controlling, monitoring, alarm or the like devices [2013-01] |
F27B 5/00 | Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated (furnaces through which the charge is moved mechanically or in which the charge moves by gravity F27B 9/00) [2025-01] |
F27B 5/02 | . | of multiple-chamber type [2013-01] |
F27B 5/04 | . | adapted for treating the charge in vacuum or special atmosphere [2013-01] |
F27B 5/06 | . | Details, accessories or equipment specially adapted for furnaces of these types [2025-01] |
F27B 2005/062 | . . | {Cooling elements} [2013-01] |
F27B 2005/064 | . . . | {disposed in the furnace, around the chamber, e.g. coils} [2013-01] |
F27B 2005/066 | . . . | {disposed around the fan} [2013-01] |
F27B 2005/068 | . . . | {for external cooling} [2013-01] |
F27B 5/08 | . . | Arrangements of linings [2013-01] |
F27B 5/10 | . . | Muffles [2013-01] |
F27B 5/12 | . . | Arrangement of devices for charging [2013-01] |
F27B 5/13 | . . | Arrangement of devices for discharging [2013-01] |
F27B 5/14 | . . | Arrangements of heating devices [2013-01] |
F27B 2005/143 | . . . | {Heating rods disposed in the chamber} [2013-01] |
F27B 2005/146 | . . . . | {the heating rods being in the tubes which conduct the heating gases} [2013-01] |
F27B 5/16 | . . | Arrangements of air or gas supply devices [2013-01] |
F27B 2005/161 | . . . | {Gas inflow or outflow} [2013-01] |
F27B 2005/162 | . . . . | {through closable or non-closable openings of the chamber walls} [2013-01] |
F27B 2005/163 | . . . . . | {Controlled openings, e.g. orientable} [2013-01] |
F27B 2005/164 | . . . . | {Air supply through a set of tubes with openings} [2013-01] |
F27B 2005/165 | . . . . . | {Controlled tubes, e.g. orientable or with closable openings} [2013-01] |
F27B 2005/166 | . . . | {Means to circulate the atmosphere} [2013-01] |
F27B 2005/167 | . . . . | {the atmosphere being recirculated through the treatment chamber by a turbine} [2013-01] |
F27B 2005/168 | . . . . . | {by more than one turbine} [2013-01] |
F27B 2005/169 | . . . . | {the atmosphere being continuously renewed by exterior means} [2013-01] |
F27B 5/18 | . . | Arrangement of controlling, monitoring, alarm or like devices [2013-01] |
F27B 7/00 | Rotary-drum furnaces, i.e. horizontal or slightly inclined [2013-01] |
F27B 2007/005 | . | {for the treatment of slurries or wet materials} [2013-01] |
F27B 7/02 | . | of multiple-chamber or multiple-drum type [2013-01] |
F27B 2007/022 | . . | {the drum having a non-uniform section along its length} [2013-01] |
F27B 2007/025 | . . | {with different chambers, e.g. treatment zones} [2013-01] |
F27B 2007/027 | . . | {with more than one drum} [2013-01] |
F27B 7/04 | . . | with longitudinal divisions [2013-01] |
F27B 2007/041 | . . . | {Longitudinal tubes} [2013-01] |
F27B 2007/043 | . . . | {the partition being a cylinder, coaxial to the rotary drum, defining two chambers} [2013-01] |
F27B 2007/045 | . . . . | {the charge going in one direction in one chamber, then after a turn coming back in the other direction in the other chamber} [2013-01] |
F27B 2007/046 | . . . | {Radial partitions} [2013-01] |
F27B 2007/048 | . . . . | {defining an helical chamber} [2013-01] |
F27B 7/06 | . | adapted for treating the charge in vacuum or special atmosphere [2013-01] |
F27B 7/08 | . | externally heated [2013-01] |
F27B 7/10 | . | internally heated, e.g. by means of passages in the wall [2013-01] |
F27B 7/12 | . | tiltable [2013-01] |
F27B 7/14 | . | with means for agitating or moving the charge [2013-01] |
F27B 7/16 | . . | the means being fixed relatively to the drum, {e.g. composite means}(F27B 7/04 takes precedence) [2013-01] |
F27B 7/161 | . . . | {the means comprising projections jutting out from the wall} [2013-01] |
F27B 7/162 | . . . . | {the projections consisting of separate lifting elements, e.g. lifting shovels} [2013-01] |
F27B 2007/163 | . . . . . | {using only a ring of lifting elements to lift the charge} [2013-01] |
F27B 2007/165 | . . . . | {forming a helical lifting projection} [2013-01] |
F27B 7/166 | . . . | {the means comprising chains} [2013-01] |
F27B 7/167 | . . . | {the means comprising partitions} [2013-01] |
F27B 2007/168 | . . . . | {Annular partition} [2013-01] |
F27B 7/18 | . . | the means being movable within the drum [2013-01] |
F27B 7/20 | . | Details, accessories or equipment specially adapted for rotary-drum furnaces [2025-01] |
F27B 2007/2008 | . . | {Devices for reintroducing dust in the drum} [2013-01] |
F27B 7/2016 | . . | {Arrangements of preheating devices for the charge} [2013-01] |
F27B 7/2025 | . . . | {consisting of a single string of cyclones} [2013-01] |
F27B 7/2033 | . . . . | {with means for precalcining the raw material} [2013-01] |
F27B 7/2041 | . . . | {consisting of at least two strings of cyclones with two different admissions of raw material} [2013-01] |
F27B 7/205 | . . . . | {with precalcining means on the string supplied with exhaust gases from the cooler} [2013-01] |
F27B 7/2058 | . . . . | {with precalcining means on each string} [2013-01] |
F27B 7/2066 | . . . | {comprising a band transporter} [2013-01] |
F27B 7/2075 | . . | {Removing incrustations} [2013-01] |
F27B 7/2083 | . . | {Arrangements for the melting of metals or the treatment of molten metals} [2013-01] |
F27B 2007/2091 | . . | {Means for eliminating compounds from gases by condensation, e.g. alkali metals} [2013-01] |
F27B 7/22 | . . | Rotary drums; Supports therefor [2013-01] |
F27B 7/2206 | . . . | {Bearing rings} [2013-01] |
F27B 2007/2213 | . . . . | {mounted floatingly on the drum} [2013-01] |
F27B 2007/222 | . . . . . | {the mounting comprising radially resilient elements, e.g. springs} [2013-01] |
F27B 2007/2226 | . . . . . | {the mounting comprising elements to maintain the ring between series of abutments} [2013-01] |
F27B 2007/2233 | . . . . | {the ring being fixed to the drum, e.g. welded} [2013-01] |
F27B 7/224 | . . . | {Discharge ends} [2013-01] |
F27B 2007/2246 | . . . | {Support rollers} [2013-01] |
F27B 2007/2253 | . . . . | {mounted movable, e.g. resiliently on the ground} [2013-01] |
F27B 2007/226 | . . . . . | {constituted of series of two rollers mounted on tiltable support along the drum} [2013-01] |
F27B 2007/2266 | . . . . . | {the mounting allowing a movement of the rollers support in a horizontal plane} [2013-01] |
F27B 2007/2273 | . . . . | {with arrangements, e.g. rollers, to maintain the drum against longitudinal movement} [2013-01] |
F27B 2007/228 | . . . . | {comprising rollable bodies} [2013-01] |
F27B 2007/2286 | . . . . | {supporting the drum directly, without the use of a bearing ring} [2013-01] |
F27B 2007/2293 | . . . | {the furnace being suspended} [2013-01] |
F27B 7/24 | . . . | Seals between rotary and stationary parts [2013-01] |
F27B 7/26 | . . | Drives [2013-01] |
F27B 2007/261 | . . . | {working with a ring embracing the drum} [2013-01] |
F27B 2007/262 | . . . . | {A gear ring combined with a dented wheel drive} [2013-01] |
F27B 2007/263 | . . . . | {A gear ring combined with a ram drive} [2013-01] |
F27B 2007/265 | . . . . | {the ring being mounted floatingly} [2013-01] |
F27B 2007/266 | . . . . | {the ring being a bearing ring} [2013-01] |
F27B 2007/267 | . . . . | {A gear ring combined with a chain drive} [2013-01] |
F27B 2007/268 | . . . | {Details of the motor or the pinions} [2013-01] |
F27B 7/28 | . . | Arrangements of linings [2013-01] |
F27B 7/30 | . . | Arrangements of partitions [2013-01] |
F27B 7/32 | . . | Arrangement of devices for charging [2013-01] |
F27B 7/3205 | . . . | {Charging} [2013-01] |
F27B 2007/3211 | . . . . | {at the open end of the drum} [2013-01] |
F27B 2007/3217 | . . . . . | {axially, optionally at some distance in the kiln} [2013-01] |
F27B 2007/3223 | . . . . . . | {the charging device being movable axially, e.g. reciprocable} [2013-01] |
F27B 2007/3229 | . . . . . . | {via a centrifugal device} [2013-01] |
F27B 2007/3235 | . . . . . . | {the introducing device comprising a spray or a lance} [2013-01] |
F27B 2007/3241 | . . . . . . | {in the flame of the burner} [2013-01] |
F27B 2007/3247 | . . . . | {through a lateral opening in the drum} [2013-01] |
F27B 2007/3252 | . . . . . | {with lifting scoops attached to the drum} [2013-01] |
F27B 2007/3258 | . . . . | {at the open end of the drum} [2013-01] |
F27B 2007/3264 | . . . . . | {using special discharge means located around the discharge end, e.g. lifting scoops or a transversal annular partition} [2013-01] |
F27B 2007/327 | . . . . | {centrifugally through lateral openings in the drum} [2013-01] |
F27B 2007/3276 | . . . . | {with a collector means extending longitudinally into the drum} [2013-01] |
F27B 2007/3282 | . . . | {Details} [2013-01] |
F27B 2007/3288 | . . . . | {Sieves or grading means} [2013-01] |
F27B 2007/3294 | . . . . | {Means to fluidise the charge in the air} [2013-01] |
F27B 7/33 | . . | Arrangement of devices for discharging [2013-01] |
F27B 7/34 | . . | Arrangements of heating devices [2013-01] |
F27B 7/36 | . . | Arrangements of air or gas supply devices [2013-01] |
F27B 7/362 | . . . | {Introducing gas into the drum axially or through the wall} [2013-01] |
F27B 2007/365 | . . . . | {longitudinally} [2013-01] |
F27B 2007/367 | . . . . | {transversally through the wall of the drum} [2013-01] |
F27B 7/38 | . . | Arrangements of cooling devices [2013-01] |
F27B 7/383 | . . . | {Cooling devices for the charge} [2013-01] |
F27B 7/386 | . . . . | {Rotary-drum cooler} [2013-01] |
F27B 7/40 | . . . | Planetary coolers [2013-01] |
F27B 7/42 | . . | Arrangement of controlling, monitoring, alarm or like devices [2013-01] |
F27B 9/00 | Furnaces through which the charge is moved mechanically, e.g. of tunnel type (rotary-drum furnaces with means for agitating or moving the charge F27B 7/14); Similar furnaces in which the charge moves by gravity [2025-01] |
F27B 9/02 | . | of multiple-track type; of multiple-chamber type; Combinations of furnaces [2013-01] |
F27B 9/021 | . . | {having two or more parallel tracks} [2013-01] |
F27B 9/022 | . . . | {With two tracks moving in opposite directions} [2013-01] |
F27B 9/023 | . . . . | {with a U turn at one end} [2013-01] |
F27B 9/024 | . . . . . | {with superimposed tracks} [2013-01] |
F27B 9/025 | . . . | {having two or more superimposed tracks (F27B 9/024 takes precedence)} [2013-01] |
F27B 2009/026 | . . | {Two or more conveyors, e.g. mounted successively} [2016-05] |
F27B 2009/027 | . . . | {working in parallel} [2013-01] |
F27B 9/028 | . . | {Multi-chamber type furnaces, (F27B 9/029 takes precedence)} [2013-01] |
F27B 9/029 | . . | {Multicellular type furnaces constructed with add-on modules} [2013-01] |
F27B 9/04 | . | adapted for treating the charge in vacuum or special atmosphere [2013-01] |
F27B 9/042 | . . | {Vacuum furnaces} [2013-01] |
F27B 9/045 | . . | {Furnaces with controlled atmosphere} [2013-01] |
F27B 9/047 | . . . | {the atmosphere consisting of protective gases} [2013-01] |
F27B 9/06 | . | heated without contact between combustion gases and charge; electrically heated [2013-01] |
F27B 9/061 | . . | {with at least two longitudinal chambers carrying combustion gases, i.e. of the Dressler type} [2017-01] |
F27B 9/062 | . . | {electrically heated} [2013-01] |
F27B 9/063 | . . . | {Resistor heating, e.g. with resistors also emitting IR rays} [2013-01] |
F27B 9/065 | . . . . | {the resistance being transported by the conveyor} [2016-05] |
F27B 9/066 | . . . | {heated by lamps} [2013-01] |
F27B 9/067 | . . . | {heated by induction} [2013-01] |
F27B 9/068 | . . | {heated by radiant tubes, the tube being heated by a hot medium, e.g. hot gases} [2013-01] |
F27B 9/08 | . . | heated through chamber walls [2013-01] |
F27B 9/082 | . . . | {Muffle furnaces} [2013-01] |
F27B 9/084 | . . . . | {the muffle being fixed and in a single piece} [2013-01] |
F27B 9/086 | . . . . | {with two or more fixed muffles} [2013-01] |
F27B 9/088 | . . . . | {Series of separate muffles conveyed through the furnace} [2013-01] |
F27B 9/10 | . . | heated by hot air or gas [2013-01] |
F27B 9/12 | . | with special arrangements for preheating or cooling the charge [2013-01] |
F27B 2009/122 | . . | {Preheating} [2013-01] |
F27B 2009/124 | . . | {Cooling} [2013-01] |
F27B 2009/126 | . . . | {involving the circulation of cooling gases, e.g. air} [2013-01] |
F27B 2009/128 | . . . . | {the gases being further utilised as oxidants in the burners} [2013-01] |
F27B 9/14 | . | characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment (for treating continuous lengths of work F27B 9/28) [2025-01] |
F27B 9/142 | . . | {the charge moving along a vertical axis} [2013-01] |
F27B 9/145 | . . | {the charge moving along a serpentine path} [2013-01] |
F27B 9/147 | . . | {the charge moving on an inclined floor} [2013-01] |
F27B 9/16 | . . | the charge moving in a circular or arcuate path [2013-01] |
F27B 9/18 | . . . | under the action of scrapers or pushers [2013-01] |
F27B 9/185 | . . . . | {multiple hearth type furnaces} [2013-01] |
F27B 9/20 | . . | the charge moving in a substantially straight path [2025-01] |
F27B 9/201 | . . . | {walking beam furnace} [2013-01] |
F27B 9/202 | . . . . | {Conveyor mechanisms therefor} [2016-05] |
F27B 9/203 | . . . . . | {having ramps (F27B 9/206 takes precedence)} [2013-01] |
F27B 9/205 | . . . . . | {having excentrics or lever arms (F27B 9/206 takes precedence)} [2013-01] |
F27B 9/206 | . . . . . | {consisting of a single central beam} [2013-01] |
F27B 9/207 | . . . . . | {consisting of two or more conveyors} [2016-05] |
F27B 9/208 | . . . . | {the workpieces being rotated during their advance} [2013-01] |
F27B 9/22 | . . . |
F27B 9/222 | . . . . | {the path comprising a section specially adapted for effecting equalisation of the temperature of the charge} [2013-01] |
F27B 9/225 | . . . . | {the charge being subjected to an additional manipulation along the path} [2013-01] |
F27B 9/227 | . . . . | {with rotation of the charge (F27B 9/147 takes precedence)} [2013-01] |
F27B 9/24 | . . . | being carried by a conveyor [2025-01] |
F27B 9/2407 | . . . . | {the conveyor being constituted by rollers (roller hearth furnace)} [2016-05] |
F27B 9/2415 | . . . . . | {the charge rotating about an axis transversal to the axis of advancement of the charge} [2013-01] |
F27B 9/2423 | . . . . . | {the charge rotating about an axis parallel to the axis of advancement of the charge} [2013-01] |
F27B 9/243 | . . . . | {Endless-strand conveyor} [2016-05] |
F27B 2009/2438 | . . . . . | {with means to transfer the heat from the outcoming band to the incoming band} [2013-01] |
F27B 2009/2446 | . . . . . | {with means to control the tension of the band} [2013-01] |
F27B 9/2453 | . . . . | {Vibrating conveyor (shaker hearth furnace)} [2016-05] |
F27B 9/2461 | . . . . | {the charge being suspended from the conveyor} [2016-05] |
F27B 9/2469 | . . . . | {the conveyor being constituted by rollable bodies} [2016-05] |
F27B 9/2476 | . . . . | {the conveyor being constituted by air cushion} [2016-05] |
F27B 2009/2484 | . . . . | {the conveyor being a helical device} [2016-05] |
F27B 2009/2492 | . . . . | {the conveyor being constituted by series of little rams or ratchets, moving the charge along} [2016-05] |
F27B 9/26 | . . . | on or in trucks, sleds, or containers [2013-01] |
F27B 9/262 | . . . . | {on or in trucks} [2013-01] |
F27B 2009/264 | . . . . . | {the truck carrying a partition} [2013-01] |
F27B 2009/266 | . . . . . | {the truck having conducts for guiding the oven atmosphere} [2013-01] |
F27B 2009/268 | . . . . . . | {through the structure of the car and through the charge} [2013-01] |
F27B 9/28 | . | for treating continuous lengths of work [2013-01] |
F27B 9/30 | . | Details, accessories or equipment specially adapted for furnaces of these types [2025-01] |
F27B 9/3005 | . . | {arrangements for circulating gases} [2013-01] |
F27B 9/3011 | . . . | {arrangements for circulating gases transversally} [2013-01] |
F27B 2009/3016 | . . . . | {with arrangements to circulate gases through the charge} [2013-01] |
F27B 2009/3022 | . . . . | {with arrangements to maintain oxidising reducing or neutral zones} [2013-01] |
F27B 2009/3027 | . . . | {Use of registers, partitions} [2013-01] |
F27B 2009/3033 | . . . | {Fumes circulating in the same direction as the charge} [2013-01] |
F27B 2009/3038 | . . . | {Fumes or gases alternatively changing their longitudinal direction} [2013-01] |
F27B 9/3044 | . . | {Furnace regenerators} [2013-01] |
F27B 2009/305 | . . | {Particular conformation of the furnace} [2013-01] |
F27B 2009/3055 | . . . | {Non-uniform section through the length of the furnace} [2013-01] |
F27B 2009/3061 | . . . | {Furnaces with longitudinal grooves} [2013-01] |
F27B 2009/3066 | . . | {Cooling the under-structure of the kiln, e.g. under the cars} [2013-01] |
F27B 2009/3072 | . . | {Balancing the pressure between the upper part and the lower part of the kiln, above and under the track} [2013-01] |
F27B 9/3077 | . . | {Arrangements for treating electronic components, e.g. semiconductors} [2013-01] |
F27B 2009/3083 | . . | {Arrangements to handle skid marks} [2013-01] |
F27B 2009/3088 | . . | {Drying arrangements} [2013-01] |
F27B 2009/3094 | . . | {Means to store a part of the charge in the furnace} [2013-01] |
F27B 9/32 | . . | Casings [2013-01] |
F27B 9/36 | . . | Arrangements of heating devices [2013-01] |
F27B 2009/3607 | . . . | {Heaters located above the track of the charge} [2013-01] |
F27B 2009/3615 | . . . . | {Burner in the ceiling directed vertically downwards} [2013-01] |
F27B 2009/3623 | . . . | {Heaters located under the track} [2013-01] |
F27B 2009/363 | . . . . | {Burners in the hearth directed towards the ceiling} [2013-01] |
F27B 2009/3638 | . . . | {Heaters located above and under the track} [2013-01] |
F27B 2009/3646 | . . . | {Heating the ceiling or the walls for a reverberatory effect} [2013-01] |
F27B 2009/3653 | . . . | {Preheated fuel} [2013-01] |
F27B 2009/3661 | . . . . | {preheated with the exhaust gases} [2013-01] |
F27B 2009/3669 | . . . . | {preheated with the gases of the cooling zone} [2013-01] |
F27B 2009/3676 | . . . . | {preheated with the gases of the preheating zone} [2013-01] |
F27B 2009/3684 | . . . | {Combustion within a combustion chamber with outlets in the kiln chamber} [2013-01] |
F27B 2009/3692 | . . . | {The charge containing combustible materials} [2013-01] |
F27B 9/38 | . . | Arrangements of devices for charging [2013-01] |
F27B 2009/382 | . . . | {Charging} [2013-01] |
F27B 2009/384 | . . . | {Discharging} [2013-01] |
F27B 2009/386 | . . . | {Lateral intake or outtake} [2013-01] |
F27B 2009/388 | . . . . | {Centrally in the lateral wall} [2013-01] |
F27B 9/39 | . . | Arrangements of devices for discharging [2013-01] |
F27B 9/40 | . . | Arrangements of controlling or monitoring devices [2013-01] |
F27B 11/00 | Bell-type furnaces [2025-01] |
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 [2025-01] |
F27B 13/02 | . | of multiple-chamber type with permanent partitions; Combinations of furnaces [2013-01] |
F27B 13/04 | . | of single-chamber type with temporary partitions [2013-01] |
F27B 13/06 | . | Details, accessories or equipment specially adapted for furnaces of this type [2025-01] |
F27B 14/00 | Crucible or pot furnaces [2017-08] |
F27B 2014/002 | . | {Smelting process, e.g. sequences to melt a specific material} [2013-01] |
F27B 2014/004 | . . | {Process involving a smelting step, e.g. vaporisation} [2013-01] |
F27B 2014/006 | . . | {involving a salt bath or help metal bath} [2013-01] |
F27B 2014/008 | . | {Continuous casting} [2013-01] |
F27B 14/02 | . |
F27B 14/04 | . | adapted for treating the charge in vacuum or special atmosphere [2013-01] |
F27B 2014/045 | . . | {Vacuum} [2013-01] |
F27B 14/06 | . | heated electrically, e.g. induction crucible furnaces with or without any other source of heat (F27B 14/04 takes precedence) [2013-01] |
F27B 14/061 | . . | {Induction furnaces} [2013-01] |
F27B 14/063 | . . . | {Skull melting type} [2013-01] |
F27B 14/065 | . . . | {Channel type} [2013-01] |
F27B 2014/066 | . . . | {Construction of the induction furnace} [2013-01] |
F27B 2014/068 | . . | {with the use of an electrode producing a current in the melt} [2013-01] |
F27B 14/08 | . | Details specially adapted for crucible or pot furnaces [2025-01] |
F27B 14/0806 | . . | {Charging or discharging devices} [2013-01] |
F27B 2014/0812 | . . . | {Continuously charging} [2013-01] |
F27B 2014/0818 | . . . | {Discharging} [2013-01] |
F27B 2014/0825 | . . | {Crucible or pot support} [2013-01] |
F27B 2014/0831 | . . . | {Support or means for the transport of crucibles} [2013-01] |
F27B 2014/0837 | . . | {Cooling arrangements} [2013-01] |
F27B 2014/0843 | . . | {Lining or casing} [2013-01] |
F27B 2014/085 | . . | {Preheating of the charge} [2013-01] |
F27B 2014/0856 | . . . | {Preheating of the crucible} [2013-01] |
F27B 2014/0862 | . . | {Flux guides} [2013-01] |
F27B 2014/0868 | . . | {Magnetic shields} [2013-01] |
F27B 2014/0875 | . . | {Two zones or chambers, e.g. one used for charging} [2013-01] |
F27B 2014/0881 | . . | {Two or more crucibles} [2013-01] |
F27B 2014/0887 | . . | {Movement of the melt} [2013-01] |
F27B 2014/0893 | . . | {Heat-conductive material disposed on the surface of the melt} [2013-01] |
F27B 14/10 | . . | Crucibles [2013-01] |
F27B 2014/102 | . . . | {Form of the crucibles} [2013-01] |
F27B 2014/104 | . . . | {Crucible linings} [2013-01] |
F27B 2014/106 | . . . | {Ladles} [2013-01] |
F27B 2014/108 | . . . | {Cold crucibles (transparent to electromagnetic radiations)} [2013-01] |
F27B 14/12 | . . . | Covers therefor [2013-01] |
F27B 14/14 | . . | Arrangements of heating devices [2013-01] |
F27B 14/143 | . . . | {Heating of the crucible by convection of combustion gases} [2013-01] |
F27B 2014/146 | . . . | {Recuperation of lost heat, e.g. regenerators} [2013-01] |
F27B 14/20 | . . | Arrangement of controlling, monitoring, alarm or like devices [2013-01] |
F27B 15/00 | Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion [2025-01] |
F27B 15/003 | . | {Cyclones or chain of cyclones} [2013-01] |
F27B 15/006 | . | {Equipment for treating dispersed material falling under gravity with ascending gases} [2013-01] |
F27B 15/02 | . | Details, accessories or equipment specially adapted for furnaces of these types [2025-01] |
F27B 15/04 | . . | Casings; Supports therefor [2013-01] |
F27B 15/08 | . . | Arrangements of devices for charging [2013-01] |
F27B 15/09 | . . | Arrangements of devices for discharging [2013-01] |
F27B 15/10 | . . | Arrangements of air or gas supply devices [2013-01] |
F27B 15/12 | . . | Arrangements of dust collectors [2013-01] |
F27B 15/14 | . . | Arrangements of heating devices [2013-01] |
F27B 15/16 | . . | Arrangements of cooling devices [2013-01] |
F27B 15/18 | . . | Arrangements of controlling devices [2013-01] |
F27B 15/20 | . . | Arrangements of monitoring devices, of indicators, of alarm devices [2013-01] |
F27B 17/00 | Furnaces of a kind not covered by any of groups F27B 1/00 - F27B 15/00 (structural combinations of furnaces F27B 19/02) [2025-01] |
F27B 17/0008 | . | {Open field furnace for burning bricks} [2013-01] |
F27B 17/0016 | . | {Chamber type furnaces} [2013-01] |
F27B 17/0025 | . . | {specially adapted for treating semiconductor wafers} [2025-01] |
F27B 17/0033 | . . | {the floor of the furnaces consisting of the support carrying the charge, e.g. car type furnaces} [2013-01] |
F27B 17/0041 | . . | {specially adapted for burning bricks or pottery (F27B 17/0033 takes precedence)} [2013-01] |
F27B 17/005 | . . . | {with cylindrical chambers} [2013-01] |
F27B 17/0058 | . . . . | {with superposed cylindrical chambers} [2013-01] |
F27B 17/0066 | . . . | {arrangement of the charge, e.g. bricks} [2013-01] |
F27B 17/0075 | . . . | {Heating devices therefor} [2013-01] |
F27B 17/0083 | . . | {with means for circulating the atmosphere} [2013-01] |
F27B 2017/0091 | . . | {Series of chambers, e.g. associated in their use} [2013-01] |
F27B 17/02 | . | specially designed for laboratory use [2013-01] |
F27B 17/025 | . . | {for dental workpieces} [2013-01] |
F27B 19/00 | Combinations of different kinds of furnaces that are not all covered by any single one of main groups F27B 1/00 - F27B 17/00 [2025-01] |
F27B 19/02 | . | combined in one structure [2013-01] |
F27B 19/04 | . | arranged for associated working [2013-01] |
F27B 21/00 | Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction [2013-01] |
F27B 21/02 | . | Sintering grates or tables [2013-01] |
F27B 21/04 | . | Sintering pots or sintering pans [2013-01] |
F27B 21/06 | . | Endless-strand sintering machines [2013-01] |