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IPC 7
B28C-B28C00904

SECTION B – PERFORMING OPERATIONS; TRANSPORTING


B 28WORKING CEMENT, CLAY, OR STONE


B 28 CPREPARING 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.



1/

00Apparatus 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)

1/

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

1/

04..Producing suspensions, e.g. by blunging

1/

06..Processing suspensions

1/

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

1/

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

1/

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

1/

14..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)

1/

16...for homogenising, e.g. by mixing, kneading

1/

18...for comminuting

1/

20...for separating undesired admixed bodies

1/

22...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.


3/

00Apparatus or methods for mixing clay with other substances (producing clay suspensions B28C 1/02)


5/

00Apparatus 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)

5/

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

5/

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

5/

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

5/

08.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]

5/

10..Mixing in containers not actuated to effect the mixing

5/

12...with stirrers sweeping through the materials

5/

14....the stirrers having motion about a horizontal or substantially horizontal axis

5/

16....the stirrers having motion about a vertical or steeply inclined axis

5/

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

5/

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

5/

22....with stirrers held stationary

5/

24....with driven stirrers

5/

26...rotating about a vertical or steeply inclined axis during the mixing

5/

28....without independent stirrers

5/

30....with stirrers held stationary

5/

32....with driven stirrers

5/

34..Mixing on or by conveyers

5/

36...Endless-belt mixers

5/

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

5/

40.Mixing specially adapted for preparing mixtures containing fibres

5/

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

5/

44.Apparatus specially adapted for drive by muscle power

5/

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

5/

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


7/

00Controlling 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

7/

02.Controlling the operation of the mixing

7/

04.Supplying or proportioning the ingredients

7/

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

7/

08...by means of scrapers or skips

7/

10...by means of rotary members

7/

12..Supplying or proportioning liquid ingredients

7/

14.Supply means incorporated in or mounted on mixers

7/

16.Discharge means



9/

00General arrangement or layout of plant  [2]

9/

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

9/

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


  
 

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