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

Classification of preparind clay; Producing mixtures containing clay or cementitious material is in this subclass.

Classification of cements; concrete and ceramics per se is classified under C04B. Mixing is classified under B01F.

References relevant to classification in this subclass
This subclass/group does not cover:
Mixers in general
Concrete paving mixers combined with distributing devices
Machines for preparing mixtures of road-metal with bitumen
Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:
Cement
includes plaster
Mixtures of cement with other substances
includes plaster
Clay
includes 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)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Treatment of clays
Preparing or treating clay; kaolin
for producing or proccessing clay suspensions, [N: e.g. slip] (producing or processing suspensions in general B01)
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 1/02.

for processing clay-containing substances in non-fluid condition (clay slurries B28C 1/02); [N: Plants]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 1/10.

Apparatus or methods for mixing clay with other substances (producing clay suspensions B28C 1/02)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Compositions of mortars, concrete or artificial stone containing unburned clay
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 [N: separating cement from waste concrete B03B 9/063])
Special rules of classification within this group

Classification of apparatus or methods for producing mixtures is classified under this sublass.

without using driven mechanical means effecting the mixing is classified under B28C 5/02.

using driven mechanical means effecting the mixing is classified under B28C 5/08.

mixing in containers not actuated is classified under B28C 5/10.

mixing in containers to which motion is imparted is classified under B28C 5/18.

mixing on or by conveyors is classified undder B28C 5/34.

mixing is effected by the action of a fluid and by driven mechanical means is classified under B28C 5/38.

for preparing mixtures cantaining fibres is classified under B28C 5/40.

adapted for being mounted on vehicles and mixing during transport is classified under B28C 5/42.

super-or sub-atmospheric pressure during mixing is classified under B28C 5/46.

mixing effected by vibrations is classified under B28C 5/48.

without using driven mechanical means effecting the mixing (B28C 5/48 takes precedence)
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/02.

EP 1 695 803 A2

[N: Mixing guns or nozzles; Injector mixers (applying plaster by gas pressure E04F 21/12; both conveying and distributing concrete E04G 21/04; conveying concrete B65G 53/32; accelerating or decelerating material flow in troughs or tubes B65G 53/58)]
Synonyms and Keywords

In patent documents the following words "gunnite", "shotcrete" and "aircrete" are often used.

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)
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/08.

US 6 357 905 B1

Mixing in containers not actuated to effect the mixing
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/10.

Special rules of classification within this group

Classification of mixing in containers not actuated to effect the mixing is classified in this subclass.

mixing with stirrers sweeping through the material is classified under B28C 5/12.

discontinuosly operating mixing devices is classified under B28C 5/1223.

material flowing continuously through the mixing device is classified under B28C 5/1238.

the stirrers having a substantially horizontal axis is classified under B28C 5/14.

the stirrers having a substantially vertical axis is classified under B28C 5/16.

with stirrers sweeping through the materials [N: ,e.g. with incorporated feeding or discharging means or with oscillating stirrers]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/12.

US 4 827 455 A

References relevant to classification in this group
This subclass/group does not cover:

Examples of places where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated into a larger system:

Vehicle with moving mixing tools in a stationary container for mixing during transport
the stirrers having motion about a horizontal or substantially horizontal axis [N: (with feeding or discharging means B28C 5/12)]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/14.

[N: the stirrer shaft carrying screw-blades]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/142.

the stirrers having motion about a vertical or steeply inclined axis [N: (with feeding or discharging means B28C 5/12)]
Definition statement
This subclass/group covers:

Mixing in containers to which motion is imparted to effect the mixing
Definition statement
This subclass/group covers:

The motion which is imparted to the container to effect the mixing is non-rotational, e.g. rocking back and forth.

US 2006 227 652 A1

References relevant to classification in this group
This subclass/group does not cover:

Examples of places where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated into a larger system:

Apparatus specilly adapted for being mounted on vehicles with provision for mixing during transport
Special rules of classification within this group

Mixing in containers to which rotating motion is imparted are to be classified in the hierarchically lower subgroups of the B28C 5/18.

rotating about an inclined axis is classified under B28C 5/1806.

tilted-drum type mixers is classified under B28C 5/1825.

pulling the mixer over the ground or driven by the wheel of a vehicle is classified under B28C 5/1893.

rotating about a (substantially) horizontal axis classified is under B28C 5/20. rotating about a (substantially) vertical axis is classified under B28C5/25.

[N: rotating about an inclined axis (about a steeply inclined axis B28C 5/26)]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/1806.

[N: Mixers of the tilted-drum type, e.g. mixers pivotable about an axis perpendicular to the axis of rotation for emptying]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/1825.

BE 498 075 A

[N: having several drums]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/1843.

[N: the mixing drum being rotated by pulling it over the ground; the mixing drum or the stirrer being driven by movement of the wheel of a vehicle]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/1893.

US 4 078 263 A

rotating about a horizontal or substantially horizontal axis during mixing, e.g. without independent stirrers
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/20.

FR 378 966 A

rotating about a vertical or steeply inclined axis during the mixing, [N: e.g. comprising a flat bottomplate rotating about a vertical axis, co-operating with blades or stirrers]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/26.

US 3 635 449 A

Mixing on or by conveyers [N: e.g. by belts or chains provided with mixing elements]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/34.

DE 477 968 C

wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means; [N: Producing cellular concrete]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/38.

SU 1 691 110 A1

Mixing specially adapted for preparing mixtures containing fibres
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/40.

WO2009 043 833 A1

Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport ([N: B28C 5/1893 takes precedence; mounted on a wheelbarrow B28C 5/1215, B28C 5/1818, B28C 5/2018;] vehicle aspect B60P 3/16)
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/42.

[N: telescopic or foldable chutes]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/4251.

Apparatus specially adapted for drive by muscle power
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/44.

US2007 297 275 A1

Arrangements for applying super- or sub-atmospheric pressure during mixing; Arrangements for cooling or heating during mixing, [N: e.g. by introducing vapour]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/46.

wherein the mixing is effected by vibrations (mixers with vibrating mechanisms in general B01F 11/00)
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 5/48.

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 [N: (B28C 5/42 takes precedence; feeding material in general B65G; proportioning in general G01F, G01G; controlling in general G05)]
[N: Storage or weighing apparatus for supplying ingredients (B28C 7/04 takes precedence)]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 7/0046.

US 5 339 996 A

Informative references
Attention is drawn to the following places, which may be of interest for search:
Large containers
Controlling the operation of the mixing
Informative references
Attention is drawn to the following places, which may be of interest for search:
Controlling; Testing; Measuring
Methods, systems and apparatus for controlling in general
G05
Supplying or proportioning the ingredients [N: (B28C 7/022 takes precedence; forming a predetermined ratio of the components to be mixed, in general B01F 15/04)]
Special rules of classification within this group

Classification of supplying or proportioning the ingridients is in this subclass.

proportioning is classified under B28C 7/0404.

weighing is classified under B28C 7/0422.

volumetric is classified under B28C 7/0454.

plant for proportioning supplying or batching is crassified under B28C 7/0481.

supplying the solid ingredients is classified under B28C 7/06.

supplying or proportioning the lliquid ingredientsis classified under B28C 7/12.

[N: using a weighing belt or the like]
Informative references
Attention is drawn to the following places, which may be of interest for search:
Conveyer belt weighers
Discharge means, [N: e.g. with intermediate storage of fresh concrete]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 7/16.

US2002 175 525

General arrangement or layout of plant [N: (B28C 7/0061, B28C 7/0481 take precedence)]
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 9/00.

WO2005 113 211 A1

Informative references
Attention is drawn to the following places, which may be of interest for search:
Mixing plant in general
the plant being mobile, [N: e.g. mounted on a carriage or a set of carriages] (B28C 5/42, [N: B28C 9/004, B28C 9/006] take precedence)
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in B28C 9/04.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Hydraulic cement concrete mixers combined with distributing means specially adapted for road building
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Last Modified: 10/11/2013