F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
LIGHTING; HEATING
F27
FURNACES; KILNS; OVENS; RETORTS [4]

Note(s) [7]

  • This class covers:
  • This class does not cover:
    • combustion apparatus per se, i.e. apparatus for direct combination of oxygen gas and a burnable substance;
    • electrical heating elements per se;
    • processes carried on within the furnaces.
  • In this class, the following term is used with the meaning indicated:
    • "furnaces" covers kilns, ovens, or retorts.
F27B
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS (combustion apparatus F23; electric heating H05B)

Note(s)

  • Attention is drawn to the references and Notes following the title of class F27 and the Note (3) of section H.
Subclass index
FURNACES WITH STATIONARY CHARGE
Shaft furnaces 1/00
Horizontal furnaces 3/00, 5/00
Bell-type furnaces 11/00
With progression of heating 13/00
Crucible furnaces, tank furnaces 14/00
STATIONARY FURNACES WITH MECHANICALLY-MOVED CHARGE 9/00
ROTARY FURNACES 7/00, 13/00
OTHER FURNACES; COMBINATIONS 15/00, 17/00, 19/00
OPEN SINTERING OR LIKE APPARATUS 21/00
F27B 1/00
Shaft or like vertical or substantially vertical furnaces (for preheating, burning, calcining or cooling lime, magnesia or dolomite C04B 2/12) [2006.01]
F27B 1/02
with two or more shafts or chambers, e.g. multi-storey [2006.01]
F27B 1/04
Combinations or arrangements of shafts [2006.01]
F27B 1/06
of other than up-draught type [2006.01]
F27B 1/08
heated otherwise than by solid fuel mixed with charge [2006.01]
F27B 1/09
heated electrically [2006.01]
F27B 1/10
Details, accessories, or equipment peculiar to furnaces of these types [2006.01]
F27B 1/12
Shells or casings; Supports therefor [2006.01]
F27B 1/14
Arrangements of linings (linings in general F27D 1/00) [2006.01]
F27B 1/16
Arrangements of tuyères [2006.01]
F27B 1/18
Arrangements of dust collectors [2006.01]
F27B 1/20
Arrangement of devices for charging [2006.01]
F27B 1/21
Arrangement of devices for discharging [2006.01]
F27B 1/22
Arrangements of heat-exchange apparatus (heat-exchangers in general F28C, F28D) [2006.01]
F27B 1/24
Cooling arrangements [2006.01]
F27B 1/26
Arrangements of controlling devices [2006.01]
F27B 1/28
Arrangements of monitoring devices, of indicators, of alarm devices [2006.01]
F27B 3/00
Hearth-type furnaces, e.g. of reverberatory type (F27B 9/00-F27B 15/00, F27B 21/00 take precedence); Electric arc furnaces [2006.01]
F27B 3/02
of single-chamber fixed-hearth type [2006.01]
F27B 3/04
of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces [2006.01]
F27B 3/06
with movable working chambers or hearths, e.g. tiltable [2006.01]
F27B 3/08
heated electrically, e.g. electric arc furnaces, with or without any other source of heat [2006.01]
F27B 3/10
Details, accessories, or equipment, e.g. dust-collectors, peculiar to hearth-type furnaces [2006.01]
F27B 3/12
Working chambers or casings; Supports therefor [2006.01]
F27B 3/14
Arrangements of linings [2006.01]
F27B 3/16
Walls; Roofs [2006.01]
F27B 3/18
Arrangement of devices for charging [2006.01]
F27B 3/19
Arrangement of devices for discharging [2006.01]
F27B 3/20
Arrangements of heating devices [2006.01]
F27B 3/22
Arrangements of air or gas supply devices [2006.01]
F27B 3/24
Cooling arrangements [2006.01]
F27B 3/26
Arrangements of heat-exchange apparatus [2006.01]
F27B 3/28
Arrangement of controlling, monitoring, alarm or like devices [2006.01]
F27B 5/00
Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated (F27B 9/00 takes precedence) [2006.01]
F27B 5/02
of multiple-chamber type [2006.01]
F27B 5/04
adapted for treating the charge in vacuum or special atmosphere [2006.01]
F27B 5/05
in vacuum [2006.01]
F27B 5/06
Details, accessories, or equipment peculiar to furnaces of these types [2006.01]
F27B 5/08
Arrangements of linings [2006.01]
F27B 5/10
Muffles [2006.01]
F27B 5/12
Arrangement of devices for charging [2006.01]
F27B 5/13
Arrangement of devices for discharging [2006.01]
F27B 5/14
Arrangements of heating devices [2006.01]
F27B 5/16
Arrangements of air or gas supply devices [2006.01]
F27B 5/18
Arrangement of controlling, monitoring, alarm or like devices [2006.01]
F27B 7/00
Rotary-drum furnaces, i.e. horizontal or slightly inclined [2006.01]
F27B 7/02
of multiple-chamber or multiple-drum type [2006.01]
F27B 7/04
with longitudinal divisions [2006.01]
F27B 7/06
adapted for treating the charge in vacuum or special atmosphere [2006.01]
F27B 7/08
externally heated [2006.01]
F27B 7/10
internally heated, e.g. by means of passages in the wall [2006.01]
F27B 7/12
tiltable [2006.01]
F27B 7/14
with means for agitating or moving the charge [2006.01]
F27B 7/16
the means being fixed relatively to the drum (F27B 7/04 takes precedence) [2006.01]
F27B 7/18
the means being movable within the drum [2006.01]
F27B 7/20
Details, accessories, or equipment peculiar to rotary-drum furnaces [2006.01]
F27B 7/22
Rotary drums; Supports therefor [2006.01]
F27B 7/24
Seals between rotary and stationary parts [2006.01]
F27B 7/26
Drives [2006.01]
F27B 7/28
Arrangements of linings [2006.01]
F27B 7/30
Arrangements of partitions [2006.01]
F27B 7/32
Arrangement of devices for charging [2006.01]
F27B 7/33
Arrangement of devices for discharging [2006.01]
F27B 7/34
Arrangements of heating devices [2006.01]
F27B 7/36
Arrangements of air or gas supply devices [2006.01]
F27B 7/38
Arrangements of cooling devices [2006.01]
F27B 7/40
Planetary coolers [2006.01]
F27B 7/42
Arrangement of controlling, monitoring, alarm or like devices [2006.01]
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 [2006.01]
F27B 9/02
of multiple-track type; of multiple-chamber type; Combinations of furnaces [2006.01]
F27B 9/04
adapted for treating the charge in vacuum or special atmosphere [2006.01]
F27B 9/06
heated without contact between combustion gases and charge; electrically heated [2006.01]
F27B 9/08
heated through chamber walls [2006.01]
F27B 9/10
heated by hot air or gas [2006.01]
F27B 9/12
with special arrangements for preheating or cooling the charge [2006.01]
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) [2006.01]
F27B 9/16
the charge moving in a circular or arcuate path [2006.01]
F27B 9/18
under the action of scrapers or pushers [2006.01]
F27B 9/20
the charge moving in a substantially straight path [2006.01]
F27B 9/22
under the action of scrapers or pushers (F27B 9/26 takes precedence) [2006.01]
F27B 9/24
being carried by a conveyor [2006.01]
F27B 9/26
on or in trucks, sleds, or containers [2006.01]
F27B 9/28
for treating continuous lengths of work [2006.01]
F27B 9/30
Details, accessories, or equipment peculiar to furnaces of these types [2006.01]
F27B 9/32
Casings [2006.01]
F27B 9/34
Arrangements of linings [2006.01]
F27B 9/36
Arrangements of heating devices [2006.01]
F27B 9/38
Arrangement of devices for charging [2006.01]
F27B 9/39
Arrangement of devices for discharging [2006.01]
F27B 9/40
Arrangements of controlling or monitoring devices [2006.01]
F27B 11/00
Bell-type furnaces (for treating metal strips or wire C21D 9/663) [2006.01]
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 stationary charge [2006.01]
F27B 13/02
of multiple-chamber type with permanent partitions; Combinations of furnaces [2006.01]
F27B 13/04
of single-chamber type with temporary partitions [2006.01]
F27B 13/06
Details, accessories, or equipment peculiar to furnaces of this type [2006.01]
F27B 13/08
Casings [2006.01]
F27B 13/10
Arrangements of linings [2006.01]
F27B 13/12
Arrangements of heating devices [2006.01]
F27B 13/14
Arrangement of controlling, monitoring, alarm or like devices [2006.01]
F27B 14/00
Crucible or pot furnaces; Tank furnaces [2006.01]
F27B 14/02
with tilting or rocking arrangements (F27B 14/04 takes precedence) [2006.01]
F27B 14/04
adapted for treating the charge in vacuum or special atmosphere [2006.01]
F27B 14/06
heated electrically, e.g. induction crucible furnaces, with or without any other source of heat (F27B 14/04 takes precedence) [2006.01]
F27B 14/08
Details peculiar to crucible, pot or tank furnaces [2006.01]
F27B 14/10
Crucibles [2006.01]
F27B 14/12
Covers therefor [2006.01]
F27B 14/14
Arrangements of heating devices [2006.01]
F27B 14/16
Arrangement of devices for charging [2006.01]
F27B 14/18
Arrangement of devices for discharging [2006.01]
F27B 14/20
Arrangement of controlling, monitoring, alarm or like devices [2006.01]
F27B 15/00
Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion (combustion apparatus in which combustion takes place in a fluidised bed of fuel or other particles F23C 10/00) [2006.01]
F27B 15/02
Details, accessories, or equipment peculiar to furnaces of these types [2006.01]
F27B 15/04
Casings; Supports therefor [2006.01]
F27B 15/06
Arrangements of linings [2006.01]
F27B 15/08
Arrangement of devices for charging [2006.01]
F27B 15/09
Arrangement of devices for discharging [2006.01]
F27B 15/10
Arrangements of air or gas supply devices [2006.01]
F27B 15/12
Arrangements of dust collectors [2006.01]
F27B 15/14
Arrangements of heating devices [2006.01]
F27B 15/16
Arrangements of cooling devices [2006.01]
F27B 15/18
Arrangements of controlling devices [2006.01]
F27B 15/20
Arrangements of monitoring devices, of indicators, of alarm devices [2006.01]
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) [2006.01]
F27B 17/02
specially designed for laboratory use [2006.01]
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 [2006.01]
F27B 19/02
combined in one structure [2006.01]
F27B 19/04
arranged for associated working [2006.01]
F27B 21/00
Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction [2006.01]
F27B 21/02
Sintering grates or tables [2006.01]
F27B 21/04
Sintering pots or sintering pans [2006.01]
F27B 21/06
Endless-strand sintering machines [2006.01]
F27B 21/08
Details, accessories, or equipment peculiar to sintering or like apparatus [2006.01]
F27B 21/10
Arrangement of devices for charging [2006.01]
F27B 21/12
Arrangement of devices for discharging [2006.01]
F27B 21/14
Arrangement of controlling, monitoring, alarm or like devices [2006.01]