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
 B28
WORKING CEMENT, CLAY, OR STONE
 B28B
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER (foundry moulding B22C; working stone or stone-like material B28D; shaping of substances in a plastic state, in general B29C; making layered products not composed wholly of these substances B32B; shaping in situ, see the relevant classes of section E)
 B28B

Note(s)

In this subclass, the following term is used with the meaning indicated:

  • "the material" means:
    1. clay or other ceramic compositions;
    2. slag;
    3. mixtures with water-setting properties given by clay, cementitious material, or slag.

 B28B
Subclass index
PRODUCING ARTICLES
Shaping articles characterised by method of production, machines therefor 1/00, 3/00, 5/00
Coating of surfaces 19/00
APPARATUS OR PROCESSES FOR TREATING OR WORKING ARTICLES 11/00
MOULDS; AUXILIARY EQUIPMENT 7/00; 13/00, 17/00
GENERAL LAYOUT OF PLANT 15/00
PRODUCTION OF TUBULAR OR REINFORCED ARTICLES 21/00, 23/00
P:70 B28B 1/00
Producing shaped articles from the material (using presses B28B 3/00; shaping on moving conveyers B28B 5/00; producing tubular articles B28B 21/00)
 B28B 1/08
·  by vibrating or jolting
 B28B 1/14
·  by simple casting, the material being neither forcibly fed nor positively compacted (for molten material B28B 1/00)
 B28B 1/16
·  ·  for producing layered articles (coating B28B 11/04)
 B28B 1/24
·  by injection moulding
 B28B 1/26
·  by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor (B28B 1/52 takes precedence)
 B28B 1/30
·  by applying the material on to a core, or other moulding surface to form a layer thereon (to form a permanent layer B28B 19/00)
 B28B 1/50
·  specially adapted for producing articles of expanded material, e.g. cellular concrete (chemical aspects C04B)
 B28B 1/52
·  specially adapted for producing articles from mixtures containing fibres (by wrapping on to mandrels B28B 1/30)
P:50 B28B 3/00
Producing shaped articles from the material by using presses (shaping on moving conveyers B28B 5/00); Presses specially adapted therefor (presses in general B30B)
 B28B 3/02
·  wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
 B28B 3/04
·  ·  with one ram per mould (B28B 3/10 takes precedence)
 B28B 3/08
·  ·  with two or more rams per mould
 B28B 3/10
·  ·  each charge of material being compressed against previously formed body
 B28B 3/20
·  wherein the material is extruded
 B28B 3/26
·  ·  Extrusion dies
P:40 B28B 5/00
Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyers irrespective of the manner of shaping (shaping aspects, see the relevant groups)
P:60 B28B 7/00
Moulds; Cores; Mandrels (specially adapted for the production of tubular articles B28B 21/00)
 B28B 7/02
·  Moulds with adjustable parts
 B28B 7/10
·  Moulds with means incorporated therein, or carried thereby, for ejecting the moulded article (devices, not forming part of the mould, for ejecting the moulded article B28B 13/00)
 B28B 7/16
·  Moulds for making shaped articles with cavities or holes open to the surface
 B28B 7/22
·  Moulds for making units for prefabricated buildings; Moulds for making prefabricated stair units
 B28B 7/28
·  Cores; Mandrels
 B28B 7/34
·  Moulds, cores, or mandrels of special material, e.g. destructible materials (for slip-casting B28B 1/26)
 B28B 7/36
·  Linings or coatings (lubricating surfaces of moulds, cores, or mandrels B28B 7/38)
 B28B 7/38
·  Treating surfaces of moulds, cores, or mandrels to prevent sticking
 B28B 7/40
·  characterised by means for modifying the properties of the moulding material  [5]
P:80 B28B 11/00
Apparatus or processes for treating or working the shaped articles (specially adapted for tubular articles B28B 21/00; decoration or surface treatment in general B05, B44; processes for influencing or modifying the setting or hardening ability of mortars, concrete or artificial stone compositions, in general C04B 40/00; compacting concrete in situ in connection with building E04G 21/06; drying F26)
 B28B 11/02
·  for attaching appendages, e.g. handles, spouts
 B28B 11/04
·  for coating (glazing, engobing C04B)
 B28B 11/08
·  for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
 B28B 11/12
·  for removing parts of the articles by cutting
 B28B 11/14
·  for dividing shaped articles by cutting
P:90 B28B 13/00
Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus (feeding or discharging devices incorporated in, or operatively associated with, a particular type of shaping apparatus, or specially designed to supply materials to a particular type of shaping apparatus, see the relevant groups for the apparatus)
P:0 B28B 15/00
General arrangement or layout of plant
P:100 B28B 17/00
Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping (moulds B28B 7/00; after-treatment B28B 11/00; feeding or discharging B28B 13/00; arrangements for embedding elements in the material B28B 23/00; details, accessories, or auxiliary measures special to any one type of shaping, machine or method of shaping, see the relevant groups for such machines or methods)
P:30 B28B 19/00
Machines or methods for applying the material to surfaces to form a permanent layer thereon (making shaped articles on mandrels B28B 1/30; applying liquids or other fluent materials to surfaces in general B05C; glazing or engobing C04B; applying the material to walls or other fixed structures, see the relevant classes of section E)
 B28B 21/00 - 
B28B 23/00
Methods, apparatus, or machines, specially adapted for the production of tubular or reinforced articles
P:10 B28B 21/00
Methods or machines specially adapted for the production of tubular articles
 B28B 21/02
·  by casting into moulds
P:20 B28B 23/00
Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material (B28B 21/00 takes precedence; in units for prefabricated buildings B28B 7/22)
 B28B 23/02
·  wherein the elements are reinforcing members