1. CPC Sections
  2. CPC Section F
  3. CPC Class F23
  4. CPC Subclass F23H
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CPC
COOPERATIVE PATENT CLASSIFICATION
​
F23H
GRATES (inlets for fluidisation air for fluidised bed combustion apparatus F23C 10/20); CLEANING OR RAKING GRATES [2018-08]
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.
F23H 1/00
Grates with solid bars (double grates F23H 5/00) [2021-02]
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]
F23H 1/06
.
having bars at different levels [2021-02]
F23H 1/08
.
Vertical grates [2013-01]
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]
F23H 7/00
Inclined {or stepped} grates (inclined travelling grates F23H 11/12) [2013-01]
F23H 7/02
.
with fixed bars [2013-01]
F23H 7/04
. .
in parallel disposition [2013-01]
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]
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]
F23H 9/00
Revolving-grates; Rocking or shaking grates (inclined grates F23H 7/00) [2021-02]
F23H 9/02
.
Revolving cylindrical grates [2013-01]
F23H 9/04
.
Grates rocked as a whole [2013-01]
F23H 9/06
.
the bars being rocked about axes transverse to their lengths [2013-01]
F23H 9/08
.
the bars being rocked about their longitudinal axes (inclined grates with movable bars disposed parallel to the direction of fuel feeding and rocking about their axes F23H 7/10) [2021-02]
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]
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 controlling air supply [2017-02]
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]
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]
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]
F23H 13/00
Grates not covered by any of groups F23H 1/00-F23H 11/00 [2021-02]
F23H 13/02
.
Basket grates, e.g. with shaking arrangement [2013-01]
F23H 13/04
.
Telescoping grates [2021-02]
F23H 13/06
.
Dumping grates [2021-02]
F23H 13/08
.
Grates specially adapted for gas generators and also applicable to furnaces [2013-01]
F23H 15/00
Cleaning arrangements for grates (not forming part of the grate F23J 1/00); Moving fuel along grates (grates with bars rocked about their longitudinal axes and specially adapted for moving fuel along the grate F23H 9/10; for travelling-grates F23H 11/22) [2021-02]
F23H 17/00
Details of grates [2013-01]
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]
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]
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]
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]