Cooperative Patent Classification

Indent Level

Version: 2016.11
CPC
COOPERATIVE PATENT CLASSIFICATION
F27B
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS [2016-05]
NOTE

  • Attention is drawn to the references and notes following the title of class F27 and the note (par. III) following the Contents of Section H.
WARNING

  • The following IPC groups are not used in the CPC system. Subject matter covered by these groups is classified in the following CPC groups:
    F27B1/09 covered by F27B 1/08
    F27B5/05 covered by F27B 5/04
    F27B14/16, F27B14/18 covered by F27B 14/0806
    F27B21/08 - F27B21/14 covered by F27D
F27B 1/00
Shaft or like vertical or substantially vertical furnaces (for preheating, burning, calcining or cooling lime, magnesia or dolomite C04B 2/12) [2013-01]
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 peculiar to furnaces of these types [2013-01]
F27B 1/12
. .
Shells or casings; Supports therefor [2013-01]
F27B 1/14
. . .
Arrangements of linings (linings in general F27D 1/00) [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 (heat-exchangers in general F28C, F28D) [2013-01]
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); Tank furnaces [2013-01]
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} [2013-01]
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 peculiar to hearth-type furnaces [2013-01]
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 (F27B 9/00 takes precedence) [2013-01]
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 peculiar to furnaces of these types [2013-01]
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 peculiar to rotary-drum furnaces [2013-01]
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 (F27B 7/14 takes precedence); Similar furnaces in which the charge moves by gravity [2013-01]
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} [2013-01]
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 (F27B 9/28 takes precedence; travelling or movable supports or containers for the charge F27D 3/12) [2013-01]
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 {tunnel furnace} [2013-01]
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
. . .
{on rails, e.g.} under the action of scrapers or pushers (F27B 9/26 takes precedence) [2013-01]
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 {(transport by conveyors in general B65G)} [2016-05]
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 peculiar to furnaces of these types [2013-01]
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 9/34
. . .
Arrangements of linings [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 (for treating metal strips or wire C21D 9/663) [2013-01]
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 tionary charge [2013-01]
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 peculiar to furnaces of this type [2013-01]
F27B 13/08
. .
Casings [2013-01]
F27B 13/10
. . .
Arrangements of linings [2013-01]
F27B 13/12
. .
Arrangements of heating devices [2013-01]
F27B 13/14
. .
Arrangement of controlling, monitoring, alarm or like devices [2013-01]
F27B 14/00
Crucible or pot furnace [2013-01]
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
.
with tilting or rocking arrangements (F27B 14/04 takes precedence) [2013-01]
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 peculiar to crucible or pot furnaces [2013-01]
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 {(apparatus in general for carrying out chemical or physical processes in a fluidised bed reactor B01J 8/24 - B01J 8/44)} [2016-05]
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 peculiar to furnaces of these types [2013-01]
F27B 15/04
. .
Casings; Supports therefor [2013-01]
F27B 15/06
. . .
Arrangements of linings [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 preceding group (structural combinations of furnaces F27B 19/02) [2013-01]
F27B 17/0008
.
{Open field furnace for burning bricks} [2013-01]
F27B 17/0016
.
{Chamber type furnaces} [2013-01]
F27B 17/0025
. .
{Especially adapted for treating semiconductor wafers} [2013-01]
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 furnaces of kinds not covered by a single preceding main group [2013-01]
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]