IPC 7 English version B28C !A-B28C 9/04

B28C-B28C00904

SECTION B – PERFORMING OPERATIONS; TRANSPORTING

B 28

WORKING CEMENT, CLAY, OR STONE

B 28 C

PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER (preparing material for foundry moulds B22C 5/00)

Note

In this subclass, the following terms or expressions are used with the meanings indicated:

–

"cement" or "mixtures of cement with other substances" includes plaster;

–

"clay" includes like ceramic compositions.

Apparatus or methods for obtaining or processing clay (filtration in general B01D; separation of solids from solids B03, B07; chemical part C04B; by mining or quarrying E21C 41/16, E21C 41/26, E21C 47/10)

for producing or processing clay suspensions (producing or processing suspensions in general B01)

Producing suspensions, e.g. by blunging

Processing suspensions

Separating suspensions, e.g. for obtaining clay, for removing stones (filtration in general B01D; separation of solids from solids B03, B07)

for processing clay-containing substances in non-fluid condition (clay slurries B28C 1/02)

Storing and conditioning in storage; Specially adapted storage spaces or devices for their filling or emptying (feeding clay to shaping apparatus B28B 13/00)

specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom (processes involving conversion to a slurry B28C 1/02; conditioning in storage B28C 1/12; comminuting in general B02C; chemical features in eliminating iron or lime C04B)

for homogenising, e.g. by mixing, kneading

for comminuting

for separating undesired admixed bodies

combined with means for conditioning by heating, humidifying, or vacuum treatment

Mixing clay or cement with other material (general arrangement or layout of plant B28C 9/00; mixers in general B01F; concrete paving mixers combined with distributing devices E01C 19/00; machines for preparing mixtures of road-metal with bitumen E01C 19/10)

Note

In groups B28C 3/00 to B28C 7/00, the following term is used with the meaning indicated:

–

"mixing" includes preliminary mixing, e.g. of some of the ingredients, final mixing, and agitating the mixture to prevent segregation thereof.

Apparatus or methods for mixing clay with other substances (producing clay suspensions B28C 1/02)

Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions (controlling the mixing apparatus and supplying the ingredients B28C 7/00)

without using driven mechanical means effecting the mixing (B28C 5/48 takes precedence) [5]

Gravitational mixing; Mixing by intermingling streams of ingredients (ingredients projected by fluid pressure B28C 5/06)

the mixing being effected by the action of a fluid (in combination with driven mechanical means B28C 5/38)

using driven mechanical means affecting the mixing (B28C 5/40, B28C 5/42, B28C 5/48 take precedence; in combination with the action of a fluid B28C 5/38) [5]

Mixing in containers not actuated to effect the mixing

with stirrers sweeping through the materials

the stirrers having motion about a horizontal or substantially horizontal axis

the stirrers having motion about a vertical or steeply inclined axis

Mixing in containers to which motion is imparted to effect the mixing

rotating about a horizontal or substantially horizontal axis during mixing, e.g. without independent stirrers

with stirrers held stationary

with driven stirrers

rotating about a vertical or steeply inclined axis during the mixing

without independent stirrers

with stirrers held stationary

with driven stirrers

Mixing on or by conveyers

Endless-belt mixers

wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means

Mixing specially adapted for preparing mixtures containing fibres

Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport (vehicle aspect B60P 3/16)

Apparatus specially adapted for drive by muscle power

Arrangements for applying super- or sub-atmospheric pressure during mixing; Arrangements for cooling or heating during mixing

wherein the mixing is effected by vibrations (mixers with vibrating mechanisms in general B01F 11/00) [5]

Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture

Controlling the operation of the mixing

Supplying or proportioning the ingredients

Supplying the solid ingredients, e.g. by means of endless conveyers or jigging conveyers

by means of scrapers or skips

by means of rotary members

Supplying or proportioning liquid ingredients

Supply means incorporated in or mounted on mixers

Discharge means

General arrangement or layout of plant [2]

for producing mixtures of clay or cement with other materials [2]

the plant being mobile (B28C 5/42 takes precedence) [2]