B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
 B01 - 
B07
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION
Method
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/LIQUID OR SOLID/GAS SEPARATION
Method
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/SOLID SEPARATION
Method
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB07B
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
Apparatus
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB04B, B04C
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
  
SHAPING
 B29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL (processing doughs A21C; working chocolate A23G; casting of metals B22; working cement, clay B28; chemical aspects, see section C, particularly C08; working glass C03B; candle making C11C 5/00; making soap C11D 13/00; manufacture of artificial filaments, threads, fibres, bristles or ribbons D01D, D01F; manufacture of articles from cellulosic fibrous suspensions or from papier-mâche D21J)
 B29

Note(s)

  1. This class does not cover the working of plastics sheet material in a manner analogous to the working of paper, which is covered by class B31[4]
  2. In this class, the following term is used with the meaning indicated:
    • "plastics" means macromolecular compounds or compositions based on such compounds.
  3. In this class, the following rules apply:
    1. The working of plastics is, as far as possible, classified primarily according to the particular shaping technique used, e.g. in subclass B29C[4]
    2. A product is not classified in this class unless it results from a technique which is covered by this class.
    3. Classification according to production of particular articles in subclass B29D is restricted to:
      1. aspects which are characteristic for the production of a particular article, and not classifiable in subclass B29B or B29C;
      2. combined operations for making the particular article which are not fully classifiable in subclass B29C[4]
 B29B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS  [4]
 B29B
Subclass index
PRETREATMENT
Mixing; kneading 7/00
Conditioning 13/00
Other pretreatment 15/00
MAKING GRANULES OR PREFORMS 9/00, 11/00
RECOVERY OF PLASTICS 17/00

 B29C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (working in the manner of metal B23; grinding, polishing B24; cutting B26D, B26F; making preforms B29B 11/00)  [4]
 B29C

Note(s)

  1. Attention is drawn to Note (3) following the title of class B29.  [4]
  2. Layered products or laminating methods are further classified in subclass B32B.  [4]
  3. In this subclass:
 B29C
Subclass index
COMPONENT PARTS, DETAILS ACCESSORIES, AUXILIARY OPERATIONS
Moulds or cores 33/00
Heating, cooling, curing 35/00
Other features 31/00, 37/00
MOULDING
by casting, by coating a mould 39/00, 41/00
Compression moulding 43/00
by internal pressure 44/00
Injection moulding 45/00
Extrusion moulding 47/00
Blow-moulding 49/00
Thermoforming 51/00
OTHER SHAPING TECHNIQUES
Bending, folding, twisting, straightening, flattening 53/00
Stretching 55/00
Liberation of internal stresses 61/00
Other techniques 67/00
JOINING 65/00
PARTICULAR APPLICATIONS
Shaping tube ends 57/00
Surface shaping 59/00
Lining or sheathing 63/00
Shaping composites 70/00
COMBINATIONS OF SHAPING TECHNIQUES 69/00
AFTER-TREATMENT 71/00
REPAIRING 73/00

 B29D
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B 9/00; making preforms B29B 11/00)  [4]
 B29D

Note(s)

  1. Attention is drawn to Note (3) following the title of class B29[4]
  2. Layered products or laminating methods are further classified in subclass B32B[8]