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| SECTION B– PERFORMING OPERATIONS; TRANSPORTING |
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| SEPARATING; MIXING |
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| Notes |
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| The following notes are meant to assist in the use of this part of the classification scheme; they must not be read as modifying in any way the elaborations. |
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| (1) | In this sub-section, the separation of different materials, e.g. of different matter, size, or state, is predominantly found in the following subclasses: |
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| B 01 D B 03 B, B 03 C, B 03 D B 04 B, B 04 C, B 07 B, B 07 C. |
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| (2) | The classifying characteristics of these subclasses are: |
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| (i) | the physical state of the matter to be separated; |
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| (ii) | the principle of the process used; |
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| (iii) | particular kinds of apparatus. |
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| The first of these characteristics involves six different aspects, assembled in three groups: |
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| (a) | liquid/liquid or liquid/gas and gas/gas; |
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| (b) | solid/liquid or solid/gas; |
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| (c) | solid/solid. |
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| (3) | These subclasses are to be used according to the following general rules: |
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| – | B 01 D is the most general class as far as separation other than solids from solids is concerned. |
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| – | Apparatus for separating solids from solids are covered by B 03 B when the process concerned is regarded as the equivalent of "washing" in the sense of the mining art, even if such apparatus is a pneumatic one, especially pneumatic tables or jigs. Screens per se are not covered by this subclass but are classified in B 07 B, even if they are being used in a wet process. All other apparatus for the separation of solids from solids according to dry methods are classified in B 07 B. |
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| – | If the separation takes place as a result of the detection or measurement of some feature of the material or articles to be sorted it is classified in B 07 C. |
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| It should also be noted that the separation of isotopes of the same chemical element is covered by B 01 D 59/00, whatever process or apparatus is employed. |
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| (4) | The following scheme illustrates the classification according to these rules. |
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TABLE A - LIQUID/LIQUID |
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TABLE B - SOLID/LIQUID |
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TABLE C - SOLID/SOLID |
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Dry Methods |
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Wet methods |
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Combinations |
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| B 01 | PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL (furnaces, kilns, ovens, retorts, in general F 27) |
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| B 02 | CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING |
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| B 03 | SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (separating isotopes B 01 D 59/00; crushing or disintegrating B 02 C; centrifuges or vortex apparatus for carrying out physical processes B 04) |
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| B 04 | CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES |
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| B 05 | SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL (domestic cleaning A 47 L; cleaning in general by methods essentially involving the use or presence of liquid B 08 B 3/00; sand-blasting B 24 C; coating of articles during shaping of substances in a plastic state B 29 C 39/10, B 29 C 39/18, B 29 C 41/20, B 29 C 41/30, B 29 C 43/18, B 29 C 43/28, B 29 C 45/14, B 29 C 47/02; for further classification of forming layered products, see B 32 B; printing, copying B 41; conveying articles or workpieces through baths of liquid B 65 G, e.g. B 65 G 49/02; handling webs or filaments in general B 65 H; paints, varnishes, lacquers C 09 D; enamelling of metals, applying a vitreous layer to metals, chemical cleaning or de-greasing of metallic objects C 23; electroplating C 25 D; treating of textile materials by liquids, gases or vapours D 06 B; laundering D 06 F; treating roads E 01 C; apparatus or processes for the preparation or treatment of photosensitive materials G 03; apparatus or processes, restricted to a purpose fully provided for in a single other class, see the relevant class covering the purpose) |
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| B 06 | GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL |
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| B 07 | SEPARATING SOLIDS FROM SOLIDS; SORTING (separation in general B 01 D; wet separating processes, sorting by processes using fluent material in the same way as liquid B 03; using liquids B 03 B, B 03 D; sorting by magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high voltage electric fields B 03 C; centrifuges or vortex apparatus for carrying out physical processes B 04; sorting peculiar to particular materials or articles and provided for in other classes, see the relevant classes) |
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| B 08 | CLEANING |
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| B 09 | DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL (treatment of waste water, sewage or sludge C 02 F; treating radioactively contaminated solids G 21 F 9/28) |
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| SHAPING |
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| B 21 | MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (casting, powder metallurgy B 22; shearing B 23 D; working of metal by the action of a high concentration of electric current B 23 H; soldering, welding, flame-cutting B 23 K; other working of metal B 23 P; punching sheet material in general B 26 F; processes for changing of physical properties of metals C 21 D, C 22 F; electroforming C 25 D 1/00) |
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| B 22 | CASTING; POWDER METALLURGY |
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| B 23 | MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR (punching, perforating, making articles by processing sheet metal, tubes, or profiles B 21 D; wire-working B 21 F; making pins, needles, or nails B 21 G; making chains B 21 L; grinding B 24) |
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| B 24 | GRINDING; POLISHING |
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| B 25 | HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS |
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| B 26 | HAND CUTTING TOOLS; CUTTING; SEVERING |
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| B 27 | WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL |
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| B 28 | WORKING CEMENT, CLAY, OR STONE |
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| B 29 | WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL (processing doughs A 21 C; working chocolate A 23 G; casting of metals B 22; working cement, clay B 28; chemical aspects, see section C, particularly C 08; working glass C 03 B; candle making C 11 C 5/02; making soap C 11 D 13/00; manufacture of artificial filaments, threads, fibres, bristles or ribbons D 01 D, D 01 F; manufacture of articles from cellulosic fibrous suspensions or from papier-māche D 21 J) |
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| B 30 | PRESSES |
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| B 31 | MAKING PAPER ARTICLES; WORKING PAPER (making layered products not composed wholly of paper or cardboard B 32 B; handling thin material, e.g. sheets, webs, B 65 H) |
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| B 32 | LAYERED PRODUCTS |
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| PRINTING |
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| B 41 | PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS (reproduction or duplication of pictures or patterns by scanning and converting into electrical signals H 04 N) |
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| B 42 | BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER |
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| B 43 | WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES |
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| B 44 | DECORATIVE ARTS |
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| TRANSPORTING |
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| B 60 | VEHICLES IN GENERAL |
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| B 61 | RAILWAYS |
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| B 62 | LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS |
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| B 63 | SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT |
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| B 64 | AIRCRAFT; AVIATION; COSMONAUTICS |
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| B 65 | CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL |
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| B 66 | HOISTING; LIFTING; HAULING |
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| B 67 | OPENING OR CLOSING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING (nozzles in general B 05 B; packaging liquids B 65 B, e.g. B 65 B 3/00; pumps in general F 04; siphons F 04 F 10/00; valves F 16 K; handling liquefied gases F 17 C) |
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| B 68 | SADDLERY; UPHOLSTERY |
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