| IPC 6 English version | F28G-F28G01510 |
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SECTION F | – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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HEAT EXCHANGE IN GENERAL (arrangement or mounting of heat-exchangers in air-conditioning, air-humidification or ventilation F 24 F 13/30) |
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CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS (cleaning pipes or tubes in general B 08 B 9/02; devices or arrangements for removing water, minerals, or sludge from boilers while the boiler is in operation, or which remain in position while the boiler is in operation, or are specifically adapted to boilers without any other utility F 22 B 37/48; removal or treatment of combustion products or combustion residues F 23 J; removing ice from heat-exchange apparatus F 28 F 17/00) |
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1/ | 00 | Non-rotary, e.g. reciprocated, appliances (F 28 G 3/00 takes precedence) |
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1/ | 02 | . | having brushes (brushes A 46 B) |
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1/ | 04 | . | having articulated tools, e.g. assembled in chain manner |
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1/ | 06 | . | having coiled wire tools, i.e. basket type |
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1/ | 08 | . | having scrapers, hammers, or cutters, e.g. rigidly mounted |
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1/ | 10 | . . | resiliently mounted |
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1/ | 12 | . | Fluid-propelled scrapers, bullets, or like solid bodies |
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1/ | 14 | . | Pull-through rods |
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1/ | 16 | . | using jets of fluid for removing debris (F 28 G 1/12 takes precedence) |
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3/ | 00 | Rotary appliances |
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3/ | 02 | . | having abrasive tools |
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3/ | 04 | . | having brushes (brushes A 46 B) |
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3/ | 06 | . | having articulated tools, e.g. assembled in chain manner |
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3/ | 08 | . | having coiled wire tools, i.e. basket type |
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3/ | 10 | . | having scrapers, hammers, or cutters, e.g. rigidly mounted |
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3/ | 12 | . . | resiliently mounted |
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3/ | 14 | . . | thrown into working position by centrifugal force |
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3/ | 16 | . | using jets of fluid for removing debris |
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5/ | 00 | Cleaning by distortion (by vibration F 28 G 7/00) |
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7/ | 00 | Cleaning by vibration |
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9/ | 00 | Cleaning by flushing or washing, e.g. with chemical solvents (appliances using jets of fluid for removing debris F 28 G 1/16, F 28 G 3/16) |
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11/ | 00 | Cleaning by combustion processes, e.g. using squibs, using travelling burners |
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13/ | 00 | Appliances or processes not covered by groups F 28 G 1/00 to F 28 G 11/00; Combinations of appliances or processes covered by groups F 28 G 1/00 to F 28 G 11/00 |
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15/ | 00 | Details (measuring thickness of deposit G 01 B) |
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15/ | 02 | . | Supports for cleaning appliances, e.g. frames |
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15/ | 04 | . | Feeding or driving arrangements, e.g. power operation |
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15/ | 06 | . . | Automatic reversing devices |
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15/ | 08 | . | Locating position of cleaning appliances within conduits |
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15/ | 10 | . | Masks for delimiting area to be cleaned |
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