CPC Definition - Subclass B01F
This place covers:
Agitation and/or homogenisation of products formed by a combination of two or more components with the purpose of obtaining a homogeneous composition or homogeneous conditions in the mass of material.
Stirring of a single material with the purpose of obtaining homogeneous conditions in the mass of material.
This subclass covers the mixing, agitation and homogenisation of materials, irrespective of the application in which it is produced, whenever the device and/or method is directed to achieve said desired effect.
This place does not cover:
Mixing paints |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Mixing apparatus; Roller mills for preparing chocolate | |
Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions | |
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 |
Attention is drawn to the following places, which may be of interest for search:
Disinfection, sterilisation or deodorisation of air | |
Granulation (with or without coating) | |
Chemical, physical or physico-chemical processes in general; Their relevant apparatus | |
Crushing, pulverising, disintegrating | |
Flotation | |
Spraying apparatus; Atomising apparatus, e.g. aerosol manufacturing apparatus; Nozzles | |
Apparatus for applying fluent materials to surfaces, in general | |
Apparatus for enzymology or microbiology | |
Air-conditioning, air-humidification, ventilation | |
Drying | |
Heat-exchange apparatus in which the heat-exchange media are contacted, e.g. cooling towers |
In general, devices and processes in which agitation or contact of materials is produced, the object of said agitation/contact being different than for obtaining a homogeneous mixture (e.g. mass transfer devices and processes, a mere contact of two or more different materials, devices or processes in which agitation/homogenisation is intrinsic to the process per se but it is not the primary purpose), are not classified in this subclass.
As a general rule, the following information is to be classified in its whole extent:
What is mixed, i.e. the phases of materials being mixed: groups B01F 21/00 and B01F 23/00.
How it is mixed: groups B01F 25/00, B01F 27/00, B01F 29/00, B01F 31/00 and B01F 33/00.
Auxiliary information: groups B01F 35/00.
The use of substances used as emulsifying, wetting, dispersing or foam-producing agents is normally only classified in C09K 23/00, except when the related devices for mixing are also disclosed.
With regard to the phases to be mixed, the following is to be observed:
- when only a general reference to the phases is indicated, only the indexing symbols B01F 21/00 and B01F 23/00 are used;
- if reference is made to the use of the device for any kind of mixtures, it is not classified in B01F 21/00, B01F 23/00, B01F 21/00 or B01F 23/00;
- when the application is of relevance (i.e. the type of product produced is claimed or the device is claimed for making a specific product) then it is also classified in the corresponding application field.
In this place, the following terms or expressions are used with the meaning indicated:
Mixing | stirring of a single material |
Attention is drawn to the following places, which may be of interest for search:
Dispensing two or more contents |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Attention is drawn to the following places, which may be of interest for search:
Evaporation by spraying |
This place covers:
Mixing by introducing the gas into the liquid media using a particular technique, e.g. to obtain a homogenised mixture including appropriate bubble sizes or to produce aerated fluids.
Attention is drawn to the following places, which may be of interest for search:
Distillation or related exchange processes in which liquids are contacted with gaseous media | |
Jet regulators with aerating means |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Aeration of stretches of water |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
For fire extinguishing materials |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Mixing gases with non-alcoholic beverages |
Attention is drawn to the following places, which may be of interest for search:
Attention is drawn to the following places, which may be of interest for search:
Attention is drawn to the following places, which may be of interest for search:
Emulsion cosmetics or similar toilet preparations | |
Emulsified medicinal preparations | |
Use of substances as emulsifying, wetting, dispersing or foam-producing agents, e.g. emulsifiers |
In this place, the following terms or expressions are used with the meaning indicated:
High viscosity liquids | A high viscosity fluid is generally considered one with a viscosity above 2000 centipoise, such as the viscosity of bitumen measured at 25 deg.C. |
Attention is drawn to the following places, which may be of interest for search:
Obtaining an average product from stored bulk material in connection with loading or unloading |
This place covers:
Mixing whereby the high-speed jetting components form a fluid stream which is used to agitate the contents flowing in a conduit, e.g. by directing the jet flow against each other.
Illustrative example of subject matter classified in this place:
This place covers:
Mixers wherein additional components are injected to a flowing main component without jetting the additional component.
This place does not cover:
Mixing by creating a vortex flow, e.g. by tangential introduction of flow components |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Mixing devices for gas burners |
This place covers:
Mixers for the continuous mixing of material without moving components and is either by a change of direction of the flow or by splitting and recombining of the stream.
Illustrative examples of subject matter classified in this place:
This place does not cover:
Crushing, pulverizing or disintegrating, e.g. colloid mills | |
Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid |
Attention is drawn to the following places, which may be of interest for search:
Pump mixers of the centrifugal-pump type, i.e. turbo-mixers |
This place covers:
Mixers in which the pressing of the material through the orifices or interstitial spaces causes shear forces to mix the components.
Illustrative example of subject matter classified in this place:
Attention is drawn to the following places, which may be of interest for search:
Pumps for liquids or elastic fluids; Positive displacement machines for liquids |
This place covers:
Falling particle mixers whereby the particles are dropped on a flowing film of liquid which is created on the wall of a receptacle, e.g. to mix or avoid particles sticking to the wall.
This place does not cover:
Magnetic mixers |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Mixing; Kneading of plastics |
Attention is drawn to the following places, which may be of interest for search:
Crushing, pulverizing or disintegrating in general; Milling grain | |
Centrifugal mixers | |
Machines or devices specially designed for dressing or handling the mould material by grinding, blending, mixing, kneading or stirring | |
Multiple way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid |
Attention is drawn to the following places, which may be of interest for search:
Stirrers having elements for co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall |
This place covers:
Stirrers or stirring elements mounted to the shaft and their arrangement or position in relation to the rotating axis of the main shaft of the stirrer, e.g. oblique, parallel, perpendicular, directly mounted on the shaft or mounted on a rod connected to the shaft.
This place covers:
Mounting of stirrers and their arrangement or position with regard to the receptacle.
Attention is drawn to the following places, which may be of interest for search:
Pan-type mixers, i.e. mixers in which the stirring elements move along the bottom of a pan-shaped receptacle |
Attention is drawn to the following places, which may be of interest for search:
Couplings for transmitting rotation |
This place covers:
Stirrers with a rotating axis which is movable during the mixing operation, e.g. to reach different areas of the mixing receptacle. The orientation of the fixed stirrer can be changed.
Attention is drawn to the following places, which may be of interest for search:
The stirrers rotating about a substantially vertical axis being additionally moved radially, or oscillating about an axis perpendicular to the stirrer axis |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Mixing or kneading of plastics with intermeshing devices, e.g. intermeshing screws |
This place covers:
The stirrer oscillates about a horizontal axis due to the way the stirrer is connected to the mixer, e.g. by springs.
Illustrative example of subject matter classified in this place:
Attention is drawn to the following places, which may be of interest for search:
With a variable orientation of the rotor axis during mixing operation, e.g. with tiltable rotor axis | |
With stirrers rotating about a substantially vertical axis and having planetary motion, i.e. rotating about their own axis and about sun axis |
This place covers:
Stirrers with a separate receptacle-stirrer unit, which can be connected to a drive, e.g. motor, when required.
Attention is drawn to the following places, which may be of interest for search:
Mixers with a mixing receptacle rotating alternately in opposite directions | |
Safety arrangements |
Attention is drawn to the following places, which may be of interest for search:
Centrifuges per se |
This place covers:
Containers, e.g. separate tumblers or receptacles, which are specially adapted for coupling to the rotating frame of the mixer, e.g. by using an indentation on the container wall.
This place covers:
Package or container holders of the mixer which are shaped so as to hold the individual package or container.
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Apparatus for tenderising meat, e.g. massaging ham by using tumblers or rotating drums |
This place covers:
Mixers with stationary bars that are optionally fixed to the receptacle.
Illustrative example of subject matter classified in this place:
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Mixing or kneading machines for the preparation of dough with inclined rotating mixing arms or levers |
Attention is drawn to the following places, which may be of interest for search:
Safety arrangements |
This place covers:
Mixers having a rotating stirrer whereby simultaneously an axial motion is imparted to the stirrer axis.
Illustrative example of subject matter classified in this place:
This place covers:
Mixers having a rotating stirrer whereby simultaneously a pendulum motion is imparted to the stirrer axis.
Illustrative example of subject matter classified in this place:
This place covers:
Mixers having a rotating stirrer and at the same time an oscillatory movement is imparted to the stirrer axis about an axis.
Illustrative example of subject matter classified in this place:
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Attention is drawn to the following places, which may be of interest for search:
Crushing or disintegrating by roller mills |
Attention is drawn to the following places, which may be of interest for search:
Micromixers using heat to mix or move the fluids |
This place covers:
Mixers having transporting fluid channels with sizes in the micrometre range.
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Processes or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems |
Attention is drawn to the following places, which may be of interest for search:
Microstructural devices or systems |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Apparatus specially adapted for being mounted on vehicles with provision for mixing cement during transport |
Attention is drawn to the following places, which may be of interest for search:
Jet mixers | |
Injector mixers | |
Aeration of stretches of water |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Machines for domestic use in mixing of food, not covered elsewhere, e.g. hand mixers used in kitchens |
This place covers:
Vehicle mounted mixing devices which cannot be separated from the movable vehicle.
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Apparatus specially adapted for being mounted on vehicles with provision for mixing cement during transport |
This place covers:
Mixers where the material is in a type of mixer, e.g. static mixer, then the material is moved into another similar mixer.
Attention is drawn to the following places, which may be of interest for search:
Crushing, pulverising or disintegrating in general |
This place covers:
Mixing plants where the receptacles are capable of moving through the plant to a plurality of locations for performing different mixing operations.
This place covers:
Mixers having at least one roller rotating around its longitudinal axis, typically having at least two rollers pressing against each other to homogenize and mix a material.
Illustrative example of subject matter classified in this place:
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Attention is drawn to the following places, which may be of interest for search:
Crushing or disintegrating by roller mills |
This place covers:
Maintenance of mixers includes any process of preserving the proper functioning of the mixers, e.g. washing, cleaning, repairing or replacing of mixers.
Attention is drawn to the following places, which may be of interest for search:
Cleaning in general |
This place covers:
Maintenance of mixers by the application of fluids for maintenance purposes, e.g. using oil for lubrication of parts or using cleaning fluids for cleaning of mixers.
This place covers:
Maintenance of mixers by using mechanical means, e.g. knockers or scrapers to dislodge material that sticks to the surface of the mixer.
Attention is drawn to the following places, which may be of interest for search:
Measuring; Testing |
This place covers:
Receptacles specially adapted to mixing.
This place covers:
The ratio or gradient of the amount or flow rates of two or more materials to be mixed are varied to obtain a collection of several mixtures of different concentrations.
This place covers:
Controlling of the ratio of two or more flows of substances to be mixed whereby the operation is a continuous process.
This place covers:
Feeding of the material to be mixed whereby the operation is done in batches.
In this place, the following terms or expressions are used with the meaning indicated:
Prill | a small aggregate or globule of a material, typically a dry sphere, formed from a melted liquid |