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Indent Level
Color Curly Brackets (indicating CPC extensions to IPC)

CPC
COOPERATIVE PATENT CLASSIFICATION
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FOUNDRY MOULDING (moulding refractory materials in general B28B)
NOTE
-
This subclass covers:- the making of moulds for casting metals or of other refractory moulds;- selection or preparation of materials therefor;- the necessary patterns, processes, machines, accessory devices or tools.

WARNING
-

The following IPC groups are not used in the CPC scheme. Subject matter covered by these groups is classified in the following CPC groups:

B22C3/02 covered by B22C 3/00
B22C5/13 covered by B22C 5/12
B22C7/05 covered by B22C 7/04
B22C9/11 covered by B22C 9/10
B22C9/14 covered by B22C 9/12
B22C9/16 covered by B22C 9/12
B22C15/264 to B22C15/276 covered by B22C 15/23
B22C19/01 covered by B22C 19/00


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Compositions of refractory mould or core materials; Grain structures thereof (refractory materials in general C04B 35/00); Chemical or physical features in the formation or manufacture of moulds
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B22C 1/02
.
characterised by additives for special purposes, e.g. indicators, break-down additives
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B22C 1/04
. .
for protection of the casting, e.g. against decarbonisation
B22C 1/06
. . .
for casting extremely oxidisable metals
B22C 1/08
. .
for decreasing shrinkage of the mould, e.g. for investment casting
B22C 1/10
. .
for influencing the hardening tendency of the mould material (influencing the hardening tendency of the binding agent only B22C 1/16)
B22C 1/12
. .
for manufacturing permanent moulds or cores
B22C 1/14
. .
for separating the pattern from the mould
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B22C 1/16
.
characterised by the use of binding agents; Mixtures of binding agents
B22C 1/162
. .
{
use of a gaseous treating agent for hardening the binder
}
B22C 1/165
. .
{
in the manufacture of multilayered shell moulds
}
B22C 1/167
. .
{
Mixtures of inorganic and organic binding agents
}
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B22C 1/18
. .
of inorganic agents
{
(B22C 1/162 takes precedence)
}
B22C 1/181
. . .
{
Cements, oxides or clays
}
B22C 1/183
. . .
{
Sols, colloids or hydroxide gels
}
B22C 1/185
. . .
{
containing phosphates, phosphoric acids or its derivatives
}
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B22C 1/186
. . .
{
contaming ammonium or metal silicates, silica sols
}
B22C 1/188
. . . .
{
Alkali metal silicates
}
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B22C 1/20
. .
of organic agents
B22C 1/205
. . .
{
of organic silicon or metal compounds, other organometallic compounds
}
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B22C 1/22
. . .
of resins or rosins
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B22C 1/2206
. . . .
{
obtained by reactions only involving carbon-to-carbon unsaturated bonds
}
B22C 1/2213
. . . . .
{
Polyalkenes
}
B22C 1/222
. . . . .
{
Polyacrylates
}
B22C 1/2226
. . . . .
{
Polymers containing halogens
}
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B22C 1/2233
. . . .
{
obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
}
B22C 1/224
. . . . .
{
Furan polymers (B22C 1/2273 takes precedence)
}
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B22C 1/2246
. . . . .
{
Condensation polymers of aldehydes and ketones (B22C 1/224, B22C 1/2273 take precedence)
}
B22C 1/2253
. . . . . .
{
with phenols
}
B22C 1/226
. . . . .
{
Polyepoxides
}
B22C 1/2266
. . . . .
{
Polyesters; Polycarbonates
}
B22C 1/2273
. . . . .
{
Polyurethanes; Polyisocyanates
}
B22C 1/228
. . . . .
{
Polyamides
}
B22C 1/2286
. . . . .
{
Polyethers
}
B22C 1/2293
. . . .
{
Natural polymers (B22C 1/24, B22C 1/26 take precedence)
}
B22C 1/24
. . .
of oily or fatty substances; of distillation residues therefrom
B22C 1/26
. . .
of carbohydrates; of distillation residues therefrom
Selection of compositions for coating the surfaces of moulds, cores, or patterns
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Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose (of general applicability, see the relevant places, e.g. for material with water-setting properties B28C)
B22C 5/02
.
Dressing by centrifuging essentially or additionally
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B22C 5/04
.
by grinding, blending, mixing, kneading, or stirring
B22C 5/0404
. .
{
Stirring by using vibrations while grinding
}
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B22C 5/0409
. .
{
Blending, mixing, kneading or stirring; Methods therefor (B22C 5/0486 takes precedence)
}
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B22C 5/0413
. . .
{
Horizontal mixing and conveying units, e.g. the unit being rotatable about a vertical axis, or having a supplementary mixing house with a vertical axis at its end
}
B22C 5/0418
. . . .
{
Details concerning the method
}
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B22C 5/0422
. . .
{
Devices having a fixed receptable with rotating tools, some or all of these tools being rolls or balls loosely mounted on their axis or loose balls in contact with the side wall or the bottom of the receptacle, e.g. with aerating means; "Devices of the Muller type"
}
B22C 5/0427
. . . .
{
having only one vertical tool-driving shaft
}
B22C 5/0431
. . . .
{
having at least two vertical tool-driving shafts
}
B22C 5/0436
. . . .
{
having a horizontal tool-driving shaft
}
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B22C 5/044
. . .
{
Devices having a vertical stirrer shaft in a fixed receptacle (B22C 5/0422 takes precedence)
}
B22C 5/0445
. . . .
{
the material flowing continuously through the device
}
B22C 5/045
. . .
{
Devices having a horizontal stirrer shaft in a fixed receptacle (B22C 5/0422 takes precedence)
}
B22C 5/0454
. . .
{
with bottom disc rotating about a vertical axis or with receptacle rotating about a vertical or steeply inclined axis, e.g. with fixed or driven tools, such as rolls
}
B22C 5/0459
. . .
{
with a receptacle rotating about a horizontal or slightly inclined axis, e.g. with fixed or rotating tools
}
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B22C 5/0463
. . .
{
Plants
}
B22C 5/0468
. . . .
{
having feeding moulds, e.g. using gas
}
B22C 5/0472
. . .
{
Parts; Accessories; Controlling; Feeding; Discharging; Proportioning
}
B22C 5/0477
. . .
{
Mixing while transporting the mixture on an endless belt, e.g. with driven stirring elements
}
B22C 5/0481
. . .
{
using vibrations
}
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B22C 5/0486
. .
{
Movable devices for cutting or mixing material laying on the ground
}
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B22C 5/049
. . .
{
using rotating tools
}
B22C 5/0495
. . . .
{
combined with another operation, e.g. sieving, or with means for picking up material from the ground
}
B22C 5/06
.
by sieving or magnetic separating
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B22C 5/08
.
by sprinkling, cooling, or drying
B22C 5/085
. .
{
Cooling or drying the sand together with the castings
}
B22C 5/10
.
by dust separating
B22C 5/12
.
for filling flasks (in combination with compacting B22C 15/20 to B22C 15/28)
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B22C 5/14
.
Equipment for storing or handling the dressed mould material, forming part of a plant for preparing such material
B22C 5/16
. .
with conveyers or other equipment for feeding the material
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B22C 5/18
.
Plants for preparing mould materials
B22C 5/185
. .
{
comprising a wet reclamation step
}
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Patterns; Manufacture thereof so far as not provided for in other classes
B22C 7/005
.
{
Adjustable, sectional, expandable or flexible patterns
}
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B22C 7/02
.
Lost patterns
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B22C 7/023
. .
{
Patterns made from expanded plastic materials
}
B22C 7/026
. . .
{
by assembling preformed parts (joining of plastics, in general B29C 65/00)
}
B22C 7/04
.
Pattern plates
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B22C 7/06
.
Core boxes
B22C 7/062
. .
{
Sealing means
}
B22C 7/065
. .
{
Venting means
}
B22C 7/067
. .
{
Ejector elements
}
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Moulds or cores (uniquely adapted to particular casting processes B22D); Moulding processes (processes involving the use of particular moulding machines, see the relevant groups for these machines)
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B22C 9/02
.
Sand moulds or like moulds for shaped castings
B22C 9/03
. .
formed by vacuum-sealed moulding
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B22C 9/04
. .
Use of lost patterns
B22C 9/043
. . .
{
Removing the consumable pattern
}
B22C 9/046
. . .
{
Use of patterns which are eliminated by the liquid metal in the mould
}
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B22C 9/06
.
Permanent moulds for shaped castings (moulds for ingots B22D 7/06)
B22C 9/061
. .
{
Materials which make up the mould
}
B22C 9/062
. .
{
Mechanisms for locking or opening moulds
}
B22C 9/064
. .
{
Locating means for cores
}
B22C 9/065
. .
{
Cooling or heating equipment for moulds
}
B22C 9/067
. .
{
Venting means for moulds
}
B22C 9/068
. .
{
Semi-permanent moulds
}
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B22C 9/08
.
Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
B22C 9/082
. .
{
Sprues, pouring cups
}
B22C 9/084
. .
{
Breaker cores
}
B22C 9/086
. .
{
Filters
}
B22C 9/088
. .
{
Feeder heads
}
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B22C 9/10
.
Cores; Manufacture or installation of cores
{
(breaker cores B22C 9/084)
}
B22C 9/101
. .
{
Permanent cores
}
B22C 9/103
. .
{
Multipart cores
}
B22C 9/105
. .
{
Salt cores
}
B22C 9/106
. .
{
Vented or reinforced cores
}
B22C 9/108
. .
{
Installation of cores
}
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B22C 9/12
.
Treating moulds or cores, e.g. drying, hardening
B22C 9/123
. .
{
Gas-hardening
}
B22C 9/126
. .
{
Hardening by freezing
}
B22C 9/18
.
Finishing
B22C 9/20
.
Stack moulds, i.e. arrangement of multiple moulds or flasks
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B22C 9/22
.
Moulds for peculiarly-shaped castings
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B22C 9/24
. .
for hollow articles
B22C 9/26
. . .
for ribbed tubes; for radiators
B22C 9/28
. .
for wheels, rolls, or rollers
{
(B22D 15/005 takes precedence)
}
B22C 9/30
. .
for chains
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Guide Heading:
Moulding machines for making moulds or cores
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Moulding machines characterised by the relative arrangement of the parts of same
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B22C 11/02
.
Machines in which the moulds are moved during a cycle of successive operations
B22C 11/04
. .
by a horizontal rotary table or carrier
B22C 11/06
. .
by a vertical rotary carrier
B22C 11/08
. .
by non-rotary conveying means, e.g. by travelling platforms
B22C 11/10
.
with one or more flasks forming part of the machine, from which only the sand moulds made by compacting are removed
B22C 11/12
.
Moulding machines able to travel
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Moulding machines for making moulds or cores of particular shapes
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B22C 13/02
.
equipped with templates, e.g. for sweeping operation
B22C 13/04
. .
with rotary templates, e.g. arranged on a pillar
B22C 13/06
. .
with non-rotary template and rotary flask
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B22C 13/08
.
for shell moulds or shell cores
B22C 13/085
. .
{
by investing a lost pattern
}
B22C 13/10
.
for pipes or elongated hollow articles
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B22C 13/12
.
for cores
B22C 13/14
. .
by sweeping, turning, or coating
B22C 13/16
. .
by pressing through a die
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Moulding machines characterised by the compacting mechanism; Accessories therefor
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B22C 15/02
.
Compacting by pressing devices only
B22C 15/04
. .
involving muscle power, e.g. hand-operated levers
B22C 15/06
. .
involving mechanical gearings, e.g. crank gears (B22C 15/04 takes precedence)
B22C 15/08
. .
involving pneumatic or hydraulic mechanisms
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B22C 15/10
.
Compacting by jarring devices only
B22C 15/12
. .
involving mechanical gearings
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B22C 15/14
. .
involving pneumatic or hydraulic mechanisms
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B22C 15/16
. . .
the machine having special provision for reducing shock to its frame
B22C 15/18
. . . .
by means of separate shock-absorbers
B22C 15/20
.
Compacting by centrifugal forces only, e.g. in sand slingers
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B22C 15/23
.
Compacting by gas pressure or vacuum
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B22C 15/24
. .
involving blowing devices in which the mould material is supplied in the form of loose particles
B22C 15/245
. . .
{
Blowing tubes
}
B22C 15/26
. .
involving propulsion devices in which the mould material is supplied in the shape of a compacted column or the like
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B22C 15/28
.
Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
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B22C 15/30
. .
by both pressing and jarring devices
B22C 15/32
. . .
involving mechanical gearing only
B22C 15/34
. . .
involving pneumatic or hydraulic mechanisms only
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Moulding machines characterised by the mechanism for separating the pattern from the mould or for turning over the flask or the pattern plate
B22C 17/02
.
Moulding machines with pin lifting arrangement
B22C 17/04
.
Drop-plate moulding machines
B22C 17/06
.
Moulding machines using stripping plates; Stripping plates
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B22C 17/08
.
Moulding machines with mechanisms to turn over the pattern plate on the mould around a horizontal axis
B22C 17/10
. .
Turning-over pattern plate and flask only (B22C 17/14 takes precedence)
B22C 17/12
. .
Turning-over pattern plate, flask, and compacting device as a unit (B22C 17/14 takes precedence)
B22C 17/14
. .
arranged to one side of the mould table, so-called roll-over table moulding machines
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Components or accessories for moulding machines
B22C 19/02
.
Mould tables
B22C 19/04
.
Controlling devices specially designed for moulding machines
B22C 19/06
.
Devices for rapping or loosening the pattern
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Flasks; Accessories therefor (stripping plates B22C 17/06)
B22C 21/01
.
for vacuum-sealed moulding
B22C 21/02
.
Sectional flasks, i.e. with divided, articulated, or interchangeable side sections
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B22C 21/04
.
Upset frames; Bottom boards or mould boards (pattern plates B22C 7/04)
B22C 21/06
. .
Bottom boards or mould boards
B22C 21/08
.
Clamping equipment
B22C 21/10
.
Guiding equipment
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B22C 21/12
.
Accessories
B22C 21/14
. .
for reinforcing or securing moulding materials or cores, e.g. gaggers, chaplets, pins, bars
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Tools; Devices not mentioned before for moulding
B22C 23/02
.
Devices for coating moulds or cores
Foundry moulding plants (for preparing mould materials B22C 5/18; in combination with casting plants B22D 47/02)
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013