CPC Definition - Subclass B02C
This place covers:
- Apparatus and methods for crushing, pulverizing, comminuting, disintegrating by using reciprocating or rotary crushers, by using rollers or balls, discs or rotary beaters, by tumbling, by using knives or other cutting or tearing members, by using fluid jets.
- Auxiliary devices, accessories for such devices e.g. safety, and auxiliary methods.
- Whole disintegration plants.
- Control arrangements for crushing or disintegrating.
- Combinations of such apparatus with other devices, e.g. for separating or sorting.
Attention is drawn to the following places, which may be of interest for search:
Preparing specimens for investigation involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising |
This place covers:
Crushing where the crushing or disintegrating members are only reciprocating.
This place does not cover:
Disintegrating devices with spiked members specially adapted for breaking-up bottles: |
This place covers:
Crushers with a gyrating conical head and a bowl assembly surrounding the head; normally the head is driven.
This place does not cover:
Cone crushers with non-coaxial discs with intersecting axes |
This place covers:
Roller mills with two or more rollers; with a roller co-operating with a stationary member like a plate, a bar a grid or grating or co-operating with a conveyor.
This place does not cover:
Roller mills with milling members in the form of rollers or balls co-operating with rings or discs |
Attention is drawn to the following places, which may be of interest for search:
In the cases where the roller mill is adapted for milling a paste-like material or grain, the document is classified in the appropriate subgroup of B02C 4/00, e.g. B02C 4/04, B02C 4/06, B02C 4/22. For searching, other classes, where the roller mill is not adapted for the specific material concerned, have to be considered.
This place covers:
Disc mills used to grind, fiberize, pulverize, granulate or refine a feedstock which is fed between opposing discs or plates. The discs may be grooved, serrated or spiked.
This place does not cover:
Apparatus specially adapted for manufacture or treatment of cocoa or cocoa products |
Attention is drawn to the following places, which may be of interest for search:
Discs for disc mills for refining paper pulp |
This place covers:
Methods or mills, systems, plants or sequences of operations specially adapted for grain with the meaning of cereal grain.
Attention is drawn to the following places, which may be of interest for search:
Combined processes for grain treatment |
This place covers:
All auxiliary devices and accessories specially adapted for grain mills like disagglomerators, special sifting and separating, feeding, cooling, heating, conditioning arrangements.
This place covers:
Mills with beaters rigidly connected or hinged for swinging movement to a horizontally or vertically arranged rotor for crushing material by impact. The material may be thrown against an anvil or impact member.
This place does not cover:
Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for gra) |
Mills with intermeshing elements like pins or other impact members, where both disks are rotating, are additionally classified in B02C 13/205.
This place covers:
Mills with rollers or balls co-operating with stationary or rotating rings arranged according to the titles of the sub-groups; many for coal or ore.
Attention is drawn to the following places, which may be of interest for search:
Cocoa; Cocoa products, e.g. chocolate; Substitutes therefore; Mixing apparatus; Roller mills for preparing chocolate | |
Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force | |
Selective separation of solid materials carried by, or dispersed in, gas currents, gas currents using centrifugal force, generated by rotating vanes, discs, drums, or brushes | |
Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring | |
Casting in, on, or around objects which form part of the product; for manufacturing or repairing tools | |
Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus |
This place covers:
Mills having a rotating, perforated or un-perforated or a fixed container, charged with the material to be disintegrated, with or without special disintegrating members such as pebbles or balls, and/or with or without special stirring means; feeding and discharging devices with the associated sorting or separating arrangements.
Shape, material of grinding media, e.g. balls, pebbles, rods.
Attention is drawn to the following places, which may be of interest for search:
Medicinal preparations characterised by special physical form; Particulate form, e.g. powders | |
Mixing | |
Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefore; involving rotary barrels |
Discharging devices combined with sorting or separating of material, as well as adding fluid, other than for crushing by fluid energy are classified in the appropriate sub-groups of B02C 17/1835 and B02C 17/186 and not in the sub-groups of B02C 23/08 and B02C 23/18. For searching the B02C 23/00 and subgroups should be considered.
This place covers:
- Shredding of material into fragments; knives therefore and mountings thereof; feed or discharge means therefore.
- Mincing machines with perforated discs and feeding worms.
Attention is drawn to the following places, which may be of interest for search:
Cutting apparatus specially adapted for cutting hay, straw or the like | |
Cutting implements specially adapted for horticultural purposes, for comminuting plant waste | |
Forestry; extracting or eliminating stumps by comminuting the tree stumps | |
Fodder distributors with mixer or shredder | |
Processing meat, poultry or fish | |
Fodder mashers | |
Kitchen equipment; coffee mills; spice mills; apparatus for making beverages | |
Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven | |
Cutting; Details common to machines for perforating, punching, cutting-out, stamping-out or severing | |
Cutting through work characterised by the nature or movement of the cutting member; Apparatus or machines therefore; Cutting members therefore | |
Manufacture of wood shavings, chips, powder, or the like | |
Working of plastics; Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering | |
Recovery of plastics or other constituents of waste material containing plastics; Disintegrating plastic | |
Disintegrating apparatus specially adapted for installation in waste pipes or outlets | |
Pumps adapted for handling specific fluids with means for comminuting, mixing stirring or otherwise treating |
This place covers:
Details in relation to the shredder housing, jam prevention, safety, lubrication of the knives and the like.
This place does not cover:
Disintegrating by knives or other cutting or tearing members which chop materials into fragments, specially adapted for disintegrating documents |
This place covers:
- Crushing by endless flexible members; by collision of materials against a breaking surface or breaking body and/or by friction between the material particles;
- Disintegrating devices or methods specially adapted for specific materials;
- Jet mills; pestle and mortar arrangements; mills in which a friction block is towed along the surface; mills provided with vibrators; use of auxiliary physical effects, e.g. ultrasonics, irradiation, cold or heat for disintegrating; grating; crushing mills with screw-shaped crushing means.
This place does not cover:
Rotors with beater elements |
Attention is drawn to the following places, which may be of interest for search:
Recovery of material from discharge tubes or lamps |
Attention is drawn to the following places, which may be of interest for search:
Presses specially adapted for consolidating empty containers, e.g. cans |
Attention is drawn to the following places, which may be of interest for search:
Pill breaking or crushing devices |
This place covers:
Disintegrating plants normally with at least two disintegration devices; transportable disintegration plants may be equipped solely with one crusher or disintegration device.
This place does not cover:
Milling plants specially adapted for grain |
Attention is drawn to the following places, which may be of interest for search:
Cutting implements specially adapted for horticultural purposes, for comminuting plant waste | |
Forestry; extracting or eliminating stumps by comminuting the tree stumps | |
Transportable screening plants | |
Crushing, pulverising or disintegrating apparatus |
This place covers:
Feeding devices, safety devices, disintegrating additives, separating or sorting of material associated with crushing or disintegrating, adding fluid, liquids or gases which are not intended for crushing or disintegrating.
Examples of places in relation to which this place is residual:
Feeding devices for gyratory or cone crushers | |
Feeding devices for roller mills | |
Feeding devices specially adapted for grain mills | |
Arrangements for preventing fire or explosion in grain mills | |
Feeding or discharge for mills having rotary beater elements | |
Safety devices or measures for mills having rotary beater elements | |
Feeding or discharging devices for tumbling mills | |
Feed or discharge means for disintegraters with knives or other cutting or tearing members |
This place covers:
Overall control arrangements and methods.
This place does not cover:
Jaw clearance or overload control for jaw crushers | |
Crushing or disintegrating by gyratory or cone crushers moved by an eccentric weight | |
Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis and with bowl adjusting or controlling mechanisms | |
Adjusting, applying pressure to or controlling the distance between milling members in roller mills | |
Driving mechanisms; Roller speed control in roller mills | |
Controlling the distance between discs in disc mills | |
Controlling the distance between discs in disc mills adapted for grain | |
Monitoring devices for tumbling mills |