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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC)

CPC
COOPERATIVE PATENT CLASSIFICATION
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INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
NOTE
-
This subclass constitutes an internal scheme for indexing only.

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F27M 2001/00
Composition, conformation or state of the charge
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F27M 2001/01
.
Charges containing mainly non-ferrous metals
F27M 2001/012
. .
Aluminium
F27M 2001/015
. .
Copper
F27M 2001/017
. .
Lead
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F27M 2001/02
.
Charges containing ferrous elements
F27M 2001/023
. .
Ferrites
F27M 2001/026
. .
Ferromagnetic materials
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F27M 2001/03
.
Charges containing minerals
F27M 2001/035
. .
China
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F27M 2001/04
.
Carbon-containing material
F27M 2001/045
. .
Coke
F27M 2001/05
.
Waste materials, refuse
F27M 2001/06
.
Plastics
F27M 2001/07
.
Glass
F27M 2001/08
.
Food
F27M 2001/10
.
Scrap material used as charge
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F27M 2001/15
.
characterised by the form of the articles
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F27M 2001/1504
. .
Ceramic articles
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F27M 2001/1508
. . .
Articles of relatively small dimensions
F27M 2001/1513
. . . .
Plates
F27M 2001/1517
. . . .
Tiles
F27M 2001/1521
. . . .
Bricks
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F27M 2001/1526
. . .
Elongated articles
F27M 2001/153
. . . .
Tubes
F27M 2001/1534
. . .
Big articles, e.g. bath-tubs
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F27M 2001/1539
. .
Metallic articles
F27M 2001/1543
. . .
Articles of relatively small dimensions
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F27M 2001/1547
. . .
Elongated articles, e.g. beams, rails
F27M 2001/1552
. . . .
Billets, slabs
F27M 2001/1556
. . . .
Tubes or cylindrical bodies
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F27M 2001/156
. . .
Flat articles
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F27M 2001/1565
. . . .
Sheets
F27M 2001/1569
. . . . .
assembled in coils
F27M 2001/1573
. . . . .
in stacks
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F27M 2001/1578
. . .
Articles of indefinite length
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F27M 2001/1582
. . . .
Wires
F27M 2001/1586
. . . . .
in coil form
F27M 2001/1591
. . . .
Bars
F27M 2001/1595
. .
Bands
F27M 2001/16
.
Particulate material, e.g. comminuted scrap
F27M 2001/17
.
in the form of a blanket, e.g. mineral wool
F27M 2001/18
.
in the form of pellets
F27M 2001/21
.
Briquets
F27M 2001/22
.
Ingots
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F27M 2002/00
Disposition of the charge
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F27M 2002/01
.
in one layer
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F27M 2002/013
. .
in a push furnace type
F27M 2002/016
. . .
workpieces being separated by a separating element
F27M 2002/03
.
as a batch of articles in a basket
F27M 2002/04
.
Palettised
F27M 2002/10
.
Brick disposition in stacks on the support
F27M 2002/11
.
Continuous charging
F27M 2002/12
.
Discontinuous charging
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F27M 2003/00
Type of treatment of the charge
F27M 2003/01
.
Annealing
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F27M 2003/02
.
Preheating, e.g. in a laminating line
F27M 2003/025
. .
Drying
F27M 2003/03
.
Calcining
F27M 2003/04
.
Sintering
F27M 2003/05
.
Brazing
F27M 2003/06
.
Enamelling
F27M 2003/07
.
Carburising
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F27M 2003/08
.
Curing; Baking
F27M 2003/085
. .
Curing a painted surface
F27M 2003/09
.
Expanding the charge, e.g. clay
F27M 2003/10
.
Soaking
F27M 2003/11
.
Incineration
F27M 2003/12
.
Reactivation of particles, e.g. carbon
F27M 2003/13
.
Smelting
F27M 2003/14
.
Pyrolising
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F27M 2003/15
.
Vaporisation
F27M 2003/155
. .
Condensation
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F27M 2003/16
.
Treatment involving a chemical reaction
F27M 2003/162
. .
between two or more components of the charge
F27M 2003/165
. .
Reduction
F27M 2003/167
. .
Oxydation
F27M 2003/17
.
Coating
F27M 2003/18
.
Degasifying
F27M 2003/19
.
Dipping in a salt bath
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Last Modified: 10/10/2013