| Outline |
Indent Level
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| Color | Curly Brackets (indicating CPC extensions to IPC) | |
CPC | COOPERATIVE PATENT CLASSIFICATION | ||
 | GRATES (inlets for fluidisation air for fluidised bed combustion apparatus F23C 10/20); CLEANING OR RAKING GRATES |
| Grates with solid bars |
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 |
F23H 1/04 | . | having a variable burning surface |
F23H 1/06 | . | having bars at different levels (double grates F23H 5/00) |
F23H 1/08 | . | Vertical grates |
| Grates with hollow bars |
F23H 5/00 | Double grates |
|
| F23H 7/02 | . | with fixed bars |
| F23H 7/06 | . | with movable bars disposed parallel to direction of fuel feeding |
| F23H 7/12 | . | with movable bars disposed transversely to direction of fuel feeding |
| Revolving-grates; Rocking-grates (F23H 7/00 takes precedence) |
F23H 9/02 | . | Revolving cylindrical grates |
F23H 9/04 | . | Grates rocked as a whole |
F23H 9/06 | . | the bars being rocked about axes transverse to their lengths |
| F23H 9/08 | . | the bars being rocked about their longitudinal axes |
F23H 9/12 | . | the bars being vertically movable in a plane |
| Travelling-grates |
F23H 11/02 | . | with the bars disposed on transverse bearers |
F23H 11/04 | . | with the bars pivoted at one side |
F23H 11/06 | . | with the bars movable relatively to one another |
F23H 11/08 | . | with several individually-movable grate surfaces |
F23H 11/10 | . | with special provision for supply of air from below and for regulating air supply |
F23H 11/12 | . | inclined travelling grates; Stepped travelling grates |
F23H 11/14 | . | serving as auxiliary grates |
F23H 11/16 | . | for multi-layer stoking |
| F23H 11/18 | . | Details |
| Grates not covered by any preceding group |
F23H 13/02 | . | Basket grates, e.g. with shaking arrangement |
F23H 13/04 | . | Telescoping-grates |
F23H 13/06 | . | Dumping-grates |
F23H 13/08 | . | Grates specially adapted for gas generators and also applicable to furnaces |
F23H 15/00 | 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) |
| Details of grates |
| F23H 2700/00 | Grates characterised by special features or applications |
F23H 2700/001 | . | Grates specially adapted for steam boilers |
F23H 2700/002 | . | Inclined grates with longitudinally movable gratebars |
F23H 2700/003 | . | Stepped grates with rotatable or slidable gratebars |
F23H 2700/004 | . | Rotary grates with horizontal axis |
F23H 2700/005 | . | Rotary grates with vertical axis |
F23H 2700/006 | . | Grates of basket-type |
F23H 2700/007 | . | Basket grates with shaking arrangement |
F23H 2700/008 | . | Mobile grates |
F23H 2700/009 | . | Grates specially adapted for incinerators |
| F23H 2900/00 | Special features of combustion grates |
F23H 2900/03021 | . | Liquid cooled grates |
F23H 2900/09041 | . | Vibrating grates for solid fuels (specially adapted for incinerators F23G 2203/107) |
F23H 2900/17001 | . | Specific materials therefor |
F23H 2900/17002 | . | Detachable or removable worn-out parts |
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Last Modified: 04/16/2013 4:31:16 PM