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Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised
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CPC
COOPERATIVE PATENT CLASSIFICATION
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GRATES (inlets for fluidisation air for fluidised bed combustion apparatus F23C 10/20); CLEANING OR RAKING GRATES [2013‑01]
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F23H 1/00
Grates with solid bars [2013‑01]
F23H 1/02
.
having provision for air supply or air preheating, e.g. air-supply or blast fittings which form a part of the grate structure or serve as supports [2013‑01]
F23H 1/04
.
having a variable burning surface [2013‑01]
.
having bars at different levels (double grates F23H 5/00) [2013‑01]
F23H 1/08
.
Vertical grates [2013‑01]
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F23H 3/00
Grates with hollow bars [2013‑01]
F23H 3/02
.
internally cooled [2013‑01]
F23H 3/04
.
externally cooled, e.g. with water, steam or air [2013‑01]
F23H 5/00
Double grates [2013‑01]
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Inclined
{
or stepped
}
grates (inclined travelling grates F23H 11/12) [2013‑01]
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F23H 7/02
.
with fixed bars [2013‑01]
F23H 7/04
. .
in parallel disposition [2013‑01]
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F23H 7/06
.
with movable bars disposed parallel to direction of fuel feeding [2013‑01]
F23H 7/08
. .
reciprocating along their axes [2013‑01]
F23H 7/10
. .
rocking about their axes [2013‑01]
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F23H 7/12
.
with movable bars disposed transversely to direction of fuel feeding [2013‑01]
F23H 7/14
. .
reciprocating along their axis [2013‑01]
F23H 7/16
. .
rocking about their axes [2013‑01]
F23H 7/18
. .
reciprocating in an upward direction [2013‑01]
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Revolving-grates; Rocking-grates (F23H 7/00 takes precedence) [2013‑01]
F23H 9/02
.
Revolving cylindrical grates [2013‑01]
.
Grates rocked as a whole [2013‑01]
F23H 9/06
.
the bars being rocked about axes transverse to their lengths [2013‑01]
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F23H 9/08
.
the bars being rocked about their longitudinal axes [2013‑01]
F23H 9/10
. .
and modified to move fuel along the grate [2013‑01]
F23H 9/12
.
the bars being vertically movable in a plane [2013‑01]
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F23H 11/00
Travelling-grates [2013‑01]
F23H 11/02
.
with the bars disposed on transverse bearers [2013‑01]
F23H 11/04
.
with the bars pivoted at one side [2013‑01]
F23H 11/06
.
with the bars movable relatively to one another [2013‑01]
F23H 11/08
.
with several individually-movable grate surfaces [2013‑01]
F23H 11/10
.
with special provision for supply of air from below and for regulating air supply [2013‑01]
F23H 11/12
.
inclined travelling grates; Stepped travelling grates [2013‑01]
F23H 11/14
.
serving as auxiliary grates [2013‑01]
F23H 11/16
.
for multi-layer stoking [2013‑01]
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F23H 11/18
.
Details [2013‑01]
F23H 11/20
. .
Driving-means [2013‑01]
F23H 11/22
. .
Moving fuel along grate; Cleaning of grate [2013‑01]
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F23H 11/24
. .
Removal of ashes; Removal of clinker [2013‑01]
F23H 11/26
. . .
by dumping [2013‑01]
F23H 11/28
. .
Replaceable burning-surface [2013‑01]
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F23H 13/00
Grates not covered by any preceding group [2013‑01]
F23H 13/02
.
Basket grates, e.g. with shaking arrangement [2013‑01]
F23H 13/04
.
Telescoping-grates [2013‑01]
F23H 13/06
.
Dumping-grates [2013‑01]
F23H 13/08
.
Grates specially adapted for gas generators and also applicable to furnaces [2013‑01]
Cleaning arrangements for grates (not forming part of the grate F23J 1/00); Moving fuel along grate (rocking-grates modified for moving fuel F23H 9/10; for travelling-grates F23H 11/22) [2013‑01]
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F23H 17/00
Details of grates [2013‑01]
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F23H 17/02
.
End fittings on bars [2013‑01]
F23H 17/04
. .
of travelling-grates [2013‑01]
F23H 17/06
.
Provision for vertical adjustment of grate [2013‑01]
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F23H 17/08
.
Bearers; Frames; Spacers; Supports [2013‑01]
F23H 17/10
. .
Dead plates; Imperforate fuel supports [2013‑01]
F23H 17/12
.
Fire-bars [2013‑01]
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F23H 2700/00
Grates characterised by special features or applications [2013‑01]
F23H 2700/001
.
Grates specially adapted for steam boilers [2013‑01]
F23H 2700/002
.
Inclined grates with longitudinally movable gratebars [2013‑01]
F23H 2700/003
.
Stepped grates with rotatable or slidable gratebars [2013‑01]
F23H 2700/004
.
Rotary grates with horizontal axis [2013‑01]
F23H 2700/005
.
Rotary grates with vertical axis [2013‑01]
F23H 2700/006
.
Grates of basket-type [2013‑01]
F23H 2700/007
.
Basket grates with shaking arrangement [2013‑01]
F23H 2700/008
.
Mobile grates [2013‑01]
F23H 2700/009
.
Grates specially adapted for incinerators [2013‑01]
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F23H 2900/00
Special features of combustion grates [2013‑01]
F23H 2900/03021
.
Liquid cooled grates [2013‑01]
F23H 2900/09041
.
Vibrating grates for solid fuels (specially adapted for incinerators F23G 2203/107) [2013‑01]
F23H 2900/17001
.
Specific materials therefor [2013‑01]
F23H 2900/17002
.
Detachable or removable worn-out parts [2013‑01]
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013