IPC Classification

Class code (prefix) Descriptions Number of results
F23J 1/00 Removing ash, clinker, or slag from combustion chambers
F23J 1/02 Apparatus for removing ash, clinker or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices
F23J 1/04 Hand tools, e.g. rakes, prickers, tongs
F23J 1/06 Mechanically-operated devices, e.g. clinker pushers
F23J 1/08 Liquid slag removal
F23J 3/00 Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
F23J 3/02 Cleaning furnace tubes; Cleaning flues or chimneys
F23J 3/04 Traps
F23J 3/06 Systems for accumulating residues from different parts of furnace plant
F23J 7/00 Arrangement of devices for supplying chemicals to fire
F23J 9/00 Preventing premature solidification of molten combustion residues
F23J 11/00 Devices for conducting smoke or fumes, e.g. flues
F23J 11/02 Devices for conducting smoke or fumes, e.g. flues for conducting smoke or fumes originating from various locations to the outside, e.g. in locomotive sheds, in garages
F23J 11/04 Devices for conducting smoke or fumes, e.g. flues in ships
F23J 11/06 Devices for conducting smoke or fumes, e.g. flues in ships for conducting smoke horizontally
F23J 11/08 Devices for conducting smoke or fumes, e.g. flues for portable apparatus
F23J 11/10 Devices for conducting smoke or fumes, e.g. flues for other inflammable structures
F23J 11/12 Smoke conduit systems for factories or large buildings
F23J 13/00 Fittings for chimneys or flues
F23J 13/02 Linings; Jackets; Casings
F23J 13/04 Joints; Connections
F23J 13/06 Mouths; Inlet holes
F23J 13/08 Doors or covers specially adapted for smoke-boxes, flues, or chimneys
F23J 15/00 Arrangements of devices for treating smoke or fumes
F23J 15/02 Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
F23J 15/04 Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
F23J 15/06 Arrangements of devices for treating smoke or fumes of coolers
F23J 15/08 Arrangements of devices for treating smoke or fumes of heaters
F23J 99/00 Subject matter not provided for in other groups of this subclass