1. CPC Sections
  2. CPC Section F
  3. CPC Class F23
  4. CPC Subclass F23M
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CPC
COOPERATIVE PATENT CLASSIFICATION
​
F23M
CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR [2020-01]
WARNING

  • {In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.}
F23M 3/00
Firebridges [2015-01]
F23M 3/02
.
modified for circulation of fluids, e.g. air, steam, water [2013-01]
F23M 3/04
. .
for delivery of gas, e.g. air, steam [2013-01]
F23M 3/06
. . .
into or towards fire [2013-01]
F23M 3/08
. . .
away from fire, e.g. towards smoke outlet [2013-01]
F23M 3/10
. . .
transversely [2013-01]
F23M 3/12
.
characterised by shape or construction [2020-01]
F23M 3/14
. .
with apertures for passage of combustion products [2013-01]
F23M 3/16
. .
built-up in sections, e.g. using bars or blocks [2013-01]
F23M 3/18
. .
double; multiple [2013-01]
F23M 3/20
. .
comprising loose refractory material, wholly or in part [2013-01]
F23M 3/22
.
movable; adjustable [2013-01]
F23M 5/00
Casings; Linings; Walls [2020-01]
F23M 5/02
.
characterised by the shape of the bricks or blocks used [2020-01]
F23M 5/025
. .
{specially adapted for burner openings} [2013-01]
F23M 5/04
.
Supports for linings [2013-01]
F23M 5/06
.
Crowns or roofs for combustion chambers [2020-01]
F23M 5/08
.
Cooling thereof; Tube walls [2013-01]
F23M 5/085
. .
{using air or other gas as the cooling medium} [2013-01]
F23M 7/00
Doors [2015-01]
F23M 7/02
.
Frames therefor [2013-01]
F23M 7/04
.
Cooling doors or door frames [2013-01]
F23M 9/00
Baffles or deflectors for air or combustion products (baffles or deflectors for air or combustion products structurally associated with burners F23D); Flame shields [2020-01]
F23M 9/003
.
{in flue gas ducts} [2013-01]
F23M 9/006
. .
{Backflow diverters} [2013-01]
F23M 9/02
.
in air inlets [2021-08]
F23M 9/04
.
with air supply passages in the baffle or shield [2015-01]
F23M 9/06
.
in fire-boxes [2013-01]
F23M 9/08
.
Helical or twisted baffles or deflectors [2013-01]
F23M 9/10
.
Baffles or deflectors formed as tubes, e.g. in water-tube boilers [2020-01]
F23M 11/00
Safety arrangements [2020-01]
F23M 11/02
.
Preventing emission of flames or hot gases, or admission of air, through working or charging apertures [2013-01]
F23M 11/04
.
Means for supervising combustion, e.g. windows [2020-01]
F23M 11/042
. .
{Viewing ports of windows} [2013-01]
F23M 11/045
. .
{by observing the flame} [2017-05]
F23M 11/047
. .
{by observing the flue gas (controlling combustion using gas detectors F23N 5/003)} [2013-01]
F23M 20/00
Details of combustion chambers, not otherwise provided for {, e.g. means for storing heat from flames} [2015-01]
F23M 20/005
.
{Noise absorbing means} [2015-01]
F23M 2700/00
Constructional details of combustion chambers [2013-01]
F23M 2700/005
.
Structures of combustion chambers or smoke ducts [2013-01]
F23M 2700/0053
. .
Bricks for combustion chamber walls [2013-01]
F23M 2700/0056
. .
Bricks for water tube combustion chamber walls [2013-01]
F23M 2700/007
.
Automatic fire extinguishing devices [2013-01]
F23M 2700/008
.
Preventing outwards emission of flames or hot gases [2013-01]
F23M 2900/00
Special features of, or arrangements for combustion chambers [2013-01]
F23M 2900/05001
.
Preventing corrosion by using special lining materials or other techniques [2013-01]
F23M 2900/05002
.
Means for accommodate thermal expansion of the wall liner [2013-01]
F23M 2900/05003
.
Details of manufacturing specially adapted for combustion chambers [2013-01]
F23M 2900/05004
.
Special materials for walls or lining [2013-01]
F23M 2900/05005
.
Sealing means between wall tiles or panels [2013-01]
F23M 2900/05021
.
Wall blocks adapted for burner openings [2013-01]
F23M 2900/09061
.
Moving baffles, e.g. rotating baffles, for creating vortices [2013-01]
F23M 2900/09062
.
Tube-shaped baffles confining the flame [2024-08]
F23M 2900/11021
.
Means for avoiding accidental fires in rooms where the combustion device is located [2013-01]
F23M 2900/11041
.
Means for observing or monitoring flames using photoelectric devices, e.g. phototransistors [2013-01]
F23M 2900/13001
.
Energy recovery by fuel cells arranged in the combustion plant [2013-01]
F23M 2900/13002
.
Energy recovery by heat storage elements arranged in the combustion chamber [2013-01]
F23M 2900/13003
.
Energy recovery by thermoelectric elements, e.g. by Peltier/Seebeck effect, arranged in the combustion plant [2013-01]
F23M 2900/13004
.
Energy recovery by thermo-photo-voltaic [TPV] elements arranged in the combustion plant [2013-01]