| IPC 6 English version | F27-F27B02114 |
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SECTION F | – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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FURNACES; KILNS; OVENS; RETORTS (specially adapted for a purpose covered by a single other class and specifically mentioned in that class, see the class in question, e.g. bakery ovens A 21 B, glass melting furnaces C 03 B, coke or gas-making apparatus C 10 B, C 10 J, apparatus for cracking hydrocarbons C 10 G, blast furnaces C 21 B, converters for making steel C 21 C, furnaces for heat treatment of metal C 21 D; furnaces for electroslag or arc remelting of metals C 22 B 9/00; enamelling ovens C 23 D; combustion apparatus F 23; electric heating H 05 B) |
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FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS |
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Note |
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Attention is drawn to the references and Notes following the title of class F 27 and the Note III following the Contents of Section of section H. |
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1/ | 00 | Shaft or like vertical or substantially vertical furnaces (for preheating, burning, calcining or cooling lime, magnesia or dolomite C 04 B 2/12) |
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1/ | 02 | . | with two or more shafts or chambers, e.g. multi-storey |
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1/ | 04 | . . | Combinations or arrangements of shafts |
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1/ | 06 | . | of other than up-draught type |
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1/ | 08 | . | heated otherwise than by solid fuel mixed with charge |
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1/ | 09 | . . | heated electrically [4] |
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1/ | 10 | . | Details, accessories, or equipment peculiar to furnaces of these types |
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1/ | 12 | . . | Shells or casings; Supports therefor |
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1/ | 14 | . . . | Arrangements of linings (linings in general F 27 D 1/00) |
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1/ | 16 | . . | Arrangements of tuyeres |
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1/ | 18 | . . | Arrangements of dust collectors |
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1/ | 20 | . . | Arrangement of devices for charging [4] |
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1/ | 21 | . . | Arrangement of devices for discharging [4] |
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1/ | 22 | . . | Arrangements of heat-exchange apparatus (heat-exchangers in general F 28 C, F 28 D) |
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1/ | 24 | . . | Cooling arrangements |
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1/ | 26 | . . | Arrangements of controlling devices |
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1/ | 28 | . . | Arrangements of monitoring devices, of indicators, of alarm devices |
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3/ | 00 | Hearth-type furnaces, e.g. of reverberatory type (F 27 B 9/00 to F 27 B 15/00, F 27 B 21/00 take precedence) |
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3/ | 02 | . | of single-chamber fixed-hearth type |
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3/ | 04 | . | of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces |
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3/ | 06 | . | with movable working chambers or hearths, e.g. tiltable |
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3/ | 08 | . | heated electrically, e.g. electric arc furnaces, with or without any other source of heat |
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3/ | 10 | . | Details, accessories, or equipment, e.g. dust-collectors, peculiar to hearth-type furnaces |
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3/ | 12 | . . | Working chambers or casings; Supports therefor |
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3/ | 14 | . . . | Arrangements of linings |
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3/ | 16 | . . . | Walls; Roofs |
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3/ | 18 | . . | Arrangement of devices for charging [4] |
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3/ | 19 | . . | Arrangement of devices for discharging [4] |
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3/ | 20 | . . | Arrangements of heating devices |
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3/ | 22 | . . | Arrangements of air or gas supply devices |
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3/ | 24 | . . | Cooling arrangements |
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3/ | 26 | . . | Arrangements of heat-exchange apparatus |
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3/ | 28 | . . | Arrangement of controlling, monitoring, alarm or like devices [4] |
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5/ | 00 | Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated (F 27 B 9/00 takes precedence) |
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5/ | 02 | . | of multiple-chamber type |
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5/ | 04 | . | adapted for treating the charge in vacuum or special atmosphere |
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5/ | 05 | . . | in vacuum [5] |
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5/ | 06 | . | Details, accessories, or equipment peculiar to furnaces of these types |
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5/ | 08 | . . | Arrangements of linings |
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5/ | 10 | . . | Muffles |
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5/ | 12 | . . | Arrangement of devices for charging [4] |
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5/ | 13 | . . | Arrangement of devices for discharging [4] |
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5/ | 14 | . . | Arrangements of heating devices |
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5/ | 16 | . . | Arrangements of air or gas supply devices |
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5/ | 18 | . . | Arrangement of controlling, monitoring, alarm or like devices [4] |
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7/ | 00 | Rotary-drum furnaces, i.e. horizontal or slightly inclined |
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7/ | 02 | . | of multiple-chamber or multiple-drum type |
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7/ | 04 | . . | with longitudinal divisions |
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7/ | 06 | . | adapted for treating the charge in vacuum or special atmosphere |
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7/ | 08 | . | externally heated |
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7/ | 10 | . | internally heated, e.g. by means of passages in the wall |
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7/ | 12 | . | tiltable |
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7/ | 14 | . | with means for agitating or moving the charge |
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7/ | 16 | . . | the means being fixed relatively to the drum (F 27 B 7/04 takes precedence) |
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7/ | 18 | . . | the means being movable within the drum |
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7/ | 20 | . | Details, accessories, or equipment peculiar to rotary-drum furnaces |
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7/ | 22 | . . | Rotary drums; Supports therefor |
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7/ | 24 | . . . | Seals between rotary and stationary parts |
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7/ | 26 | . . | Drives |
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7/ | 28 | . . | Arrangements of linings |
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7/ | 30 | . . | Arrangements of partitions |
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7/ | 32 | . . | Arrangement of devices for charging [4] |
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7/ | 33 | . . | Arrangement of devices for discharging [4] |
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7/ | 34 | . . | Arrangements of heating devices |
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7/ | 36 | . . | Arrangements of air or gas supply devices |
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7/ | 38 | . . | Arrangements of cooling devices |
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7/ | 40 | . . . | Planetary coolers [4] |
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7/ | 42 | . . | Arrangement of controlling, monitoring, alarm or like devices [4] |
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9/ | 00 | Furnaces through which the charge is moved mechanically, e.g. of tunnel type (F 27 B 7/14 takes precedence) |
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9/ | 02 | . | of multiple-track type; of multiple-chamber type; Combinations of furnaces |
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9/ | 04 | . | adapted for treating the charge in vacuum or special atmosphere |
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9/ | 06 | . | heated without contact between combustion gases and charge; electrically heated |
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9/ | 08 | . . | heated through chamber walls |
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9/ | 10 | . . | heated by hot air or gas |
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9/ | 12 | . | with special arrangements for preheating or cooling the charge |
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9/ | 14 | . | characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment (F 27 B 9/28 takes precedence; travelling or movable supports or containers for the charge F 27 D 3/12) |
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9/ | 16 | . . | the charge moving in a circular or arcuate path |
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9/ | 18 | . . . | under the action of scrapers or pushers |
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9/ | 20 | . . | the charge moving in a substantially straight path |
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9/ | 22 | . . . | under the action of scrapers or pushers (F 27 B 9/26 takes precedence) |
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9/ | 24 | . . . | being carried by a conveyer |
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9/ | 26 | . . . | on or in trucks, sleds, or containers |
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9/ | 28 | . | for treating continuous lengths of work |
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9/ | 30 | . | Details, accessories, or equipment peculiar to furnaces of these types |
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9/ | 32 | . . | Casings |
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9/ | 34 | . . . | Arrangements of linings |
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9/ | 36 | . . | Arrangements of heating devices |
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9/ | 38 | . . | Arrangement of devices for charging [4] |
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9/ | 39 | . . | Arrangement of devices for discharging [4] |
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9/ | 40 | . . | Arrangements of controlling or monitoring devices |
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11/ | 00 | Bell-type furnaces (for treating metal strips or wire C 21 D 9/663) |
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13/ | 00 | Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge |
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13/ | 02 | . | of multiple-chamber type with permanent partitions; Combinations of furnaces |
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13/ | 04 | . | of single-chamber type with temporary partitions |
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13/ | 06 | . | Details, accessories, or equipment peculiar to furnaces of this type |
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13/ | 08 | . . | Casings |
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13/ | 10 | . . . | Arrangements of linings |
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13/ | 12 | . . | Arrangements of heating devices |
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13/ | 14 | . . | Arrangement of controlling, monitoring, alarm or like devices [4] |
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14/ | 00 | Crucible or pot furnaces; Tank furnaces [4] |
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14/ | 02 | . | with tilting or rocking arrangements (F 27 B 14/04 takes precedence) |
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14/ | 04 | . | adapted for treating the charge in vacuum or special atmosphere |
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14/ | 06 | . | heated electrically, e.g. induction crucible furnaces, with or without any other source of heat (F 27 B 14/04 takes precedence) |
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14/ | 08 | . | Details peculiar to crucible, pot or tank furnaces [4] |
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14/ | 10 | . . | Crucibles |
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14/ | 12 | . . . | Covers therefor |
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14/ | 14 | . . | Arrangements of heating devices |
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14/ | 16 | . . | Arrangement of devices for charging [4] |
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14/ | 18 | . . | Arrangement of devices for discharging [4] |
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14/ | 20 | . . | Arrangement of controlling, monitoring, alarm or like devices [4] |
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15/ | 00 | Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion |
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15/ | 02 | . | Details, accessories, or equipment peculiar to furnaces of these types |
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15/ | 04 | . . | Casings; Supports therefor |
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15/ | 06 | . . . | Arrangements of linings |
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15/ | 08 | . . | Arrangement of devices for charging [4] |
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15/ | 09 | . . | Arrangement of devices for discharging [4] |
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15/ | 10 | . . | Arrangements of air or gas supply devices |
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15/ | 12 | . . | Arrangements of dust collectors |
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15/ | 14 | . . | Arrangements of heating devices |
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15/ | 16 | . . | Arrangements of cooling devices |
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15/ | 18 | . . | Arrangements of controlling devices |
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15/ | 20 | . . | Arrangements of monitoring devices, of indicators, of alarm devices |
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17/ | 00 | Furnaces of a kind not covered by any preceding group (structural combinations of furnaces F 27 B 19/02) |
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17/ | 02 | . | specially designed for laboratory use |
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19/ | 00 | Combinations of furnaces of kinds not covered by a single preceding main group |
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19/ | 02 | . | combined in one structure |
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19/ | 04 | . | arranged for associated working |
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21/ | 00 | Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction |
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21/ | 02 | . | Sintering grates or tables |
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21/ | 04 | . | Sintering pots or sintering pans |
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21/ | 06 | . | Endless-strand sintering machines |
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21/ | 08 | . | Details, accessories, or equipment peculiar to sintering or like apparatus [4] |
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21/ | 10 | . . | Arrangement of devices for charging [4] |
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21/ | 12 | . . | Arrangement of devices for discharging [4] |
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21/ | 14 | . . | Arrangement of controlling, monitoring, alarm or like devices [4] |
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