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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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WORKING STONE OR STONE-LIKE MATERIALS
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Working stone or stone-like materials, e.g. brick, concrete
{
or glass
}
, not provided for elsewhere; machines, devices, tools therefor (fine working of gems, jewels, crystals B28D 5/00; working by grinding or polishing B24; devices or means for dressing or conditioning abrasive surfaces B24B 53/00)
B28D 1/001
.
{
Cleaning bricks (by milling B28D 1/185)
}
B28D 1/003
.
{
Multipurpose machines; Equipment therefor
}
B28D 1/005
.
{
Cutting sheet laminae in planes between faces (splitting easily splittable material B28D 1/322)
}
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B28D 1/006
.
{
Artificial ageing of stones; Providing stones with an antique appearance
}
B28D 1/008
. .
{
by means of a tumbler
}
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B28D 1/02
.
by sawing
B28D 1/025
. .
{
Use, recovery or regeneration of abrasive mediums (B28D 5/007 takes precedence; for grinding and polishing in general B24B 57/00)
}
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B28D 1/04
. .
with circular
{
or cylindrical
}
saw-blades or saw-discs (B28D 1/10 takes precedence)
B28D 1/041
. . .
{
with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
}
B28D 1/042
. . .
{
the saw blade being carried by a pivoted lever (B28D 1/043 andB28D 1/044 take precedence)
}
B28D 1/043
. . .
{
Gantry type sawing machines
}
B28D 1/044
. . .
{
the saw blade being movable on slide ways (B28D 1/043 takes precedence)
}
B28D 1/045
. . .
{
Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut
}
B28D 1/046
. . .
{
Sawing in a plane parallel to the work table
}
B28D 1/047
. . .
{
with the work mounted on a carriage
}
B28D 1/048
. . .
{
with a plurality of saw blades (B28D 1/046 takes precedence)
}
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B28D 1/06
. .
with reciprocating saw-blades (B28D 1/10 takes precedence)
B28D 1/062
. . .
{
the saw blade rotating about its longitudinal axis
}
B28D 1/064
. . .
{
Sawing grooves in walls; portable sawing machines
}
B28D 1/066
. . .
{
the workpieces being moved in a horizontal plane, e.g. with vertically or oblique movable saw-blades
}
B28D 1/068
. . .
{
Components, e.g. guiding means, vibrations damping means, frames, driving means, suspension
}
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B28D 1/08
. .
with saw-blades of endless cutter-type, e.g. chain saws
{
i.e. saw chains
}
, strap saws (B28D 1/10 takes precedence)
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B28D 1/082
. . .
{
consisting of chain saws
}
B28D 1/084
. . . .
{
the saw chains being mounted on a pivotingly adjustable arm
}
B28D 1/086
. . .
{
consisting of strap saws
}
B28D 1/088
. . .
{
Sawing in situ, e.g. stones from rocks, grooves in walls
}
B28D 1/10
. .
with provision for measuring
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B28D 1/12
. .
Saw-blades
{
or saw-discs
}
specially adapted for working stone
{
(B28D 1/041 takes precedence)
}
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B28D 1/121
. . .
{
Circular saw blades
}
B28D 1/122
. . . .
{
with exchangeable cutter bits or cutter segments
}
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B28D 1/124
. . .
{
Saw chains; rod-like saw blades; saw cables
}
B28D 1/125
. . . .
{
with exchangeable cutter bits or cutter segments
}
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B28D 1/127
. . .
{
Straight, i.e. flat, saw blades; strap saw blades
}
B28D 1/128
. . . .
{
with exchangeable cutter bits or cutter segments
}
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B28D 1/14
.
by boring or drilling (rotary drilling machines B23B;
{
tools for drilling machines B23B 51/00
}
; portabe percussive machines B25D;
{
rotary drilling machines for mining or quarrying E21C 1/00
}
)
B28D 1/143
. .
{
lens-drilling machines
}
B28D 1/146
. .
{
Tools therefor (drill bits for earth or rock drilling E21B 10/00)
}
B28D 1/16
.
by turning
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B28D 1/18
.
by milling, e.g. channelling by means of milling tools
B28D 1/181
. .
{
using cutters loosely mounted on a turning tool support
}
B28D 1/183
. .
{
Hand tools, e.g. portable, motor driven
}
B28D 1/185
. .
{
for brick cleaning
}
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B28D 1/186
. .
{
Tools therefor,e.g. having exchangeable cutter bits (B28D 1/181 takes precedence; bits for picks or pick-holders for mining or quarrying E21C 35/18)
}
B28D 1/188
. . .
{
with exchangeable cutter bits or cutter segments
}
B28D 1/20
.
by planing, e.g. channelling by means of planing tools
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B28D 1/22
.
by cutting, e.g. incising
B28D 1/221
. .
{
by thermic methods
}
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B28D 1/222
. .
{
by pressing, e.g. presses
}
B28D 1/223
. . .
{
Hand-held or hand-operated tools for shearing or cleaving
}
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B28D 1/225
. .
{
for scoring or breaking, e.g. tiles
}
B28D 1/226
. . .
{
with plural scoring tools
}
B28D 1/227
. .
{
for cutting tubes
}
B28D 1/228
. .
{
Hand-held or hand-operated tools (B28D 1/222, B28D 1/225 take precedence)
}
B28D 1/24
. .
with cutting discs
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B28D 1/26
.
by impact tools, e.g. by chisels or other tools having a cutting edge (portable percussive tools B25D)
B28D 1/265
. .
{
Scabbling machines or scabbling tools
}
B28D 1/28
. .
without cutting edge
{
e.g. chiseling machines
}
B28D 1/30
.
to form contours, i.e. curved surfaces, irrespective of the method of working used (for artistic purposes B44B)
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B28D 1/32
.
Methods and apparatus specially adapted for working materials which can easily be split, e.g. mica, slate, schist
B28D 1/322
. .
{
Splitting of the working materials
}
B28D 1/325
. .
{
for making holes in easily splittable working materials
}
B28D 1/327
. .
{
for cutting or shearing easily splittable working materials
}
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Dressing mill discs or rollers (dressing the tools of sawing machines or sawing devices B23D 63/00; treating the cutting members of cutting machines to facilitate cutting B26D 7/08)
B28D 3/005
.
{
Tools therefor
}
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B28D 3/02
.
Machines
B28D 3/04
. .
for grooving rollers
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Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor (working by grinding or polishing B24; for artistic purposes B44B)
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B28D 5/0005
.
{
by breaking, e.g. dicing
}
B28D 5/0011
. .
{
with preliminary treatment, e.g. weakening by scoring
}
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B28D 5/0017
. .
{
using moving tools
}
B28D 5/0023
. . .
{
rectilinearly
}
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B28D 5/0029
. . .
{
rotating
}
B28D 5/0035
. . . .
{
cooperating with a straight breaking edge
}
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B28D 5/0041
. .
{
the workpiece being brought into contact with a suitably shaped rigid body which remains stationary during breaking
}
B28D 5/0047
. . .
{
using fluid or gas pressure
}
B28D 5/0052
. .
{
Means for supporting or holding work during breaking (means for conveying work to or discharging work from the breaking machine B28D 5/0058)
}
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B28D 5/0058
.
{
Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material (B28D 5/0005, B28D 5/024 take precedence)
}
B28D 5/0064
. .
{
Devices for the automatic drive or the program control of the machines
}
B28D 5/007
. .
{
Use, recovery or regeneration of abrasive mediums (for grinding and polishing in general B24B 57/00)
}
B28D 5/0076
. .
{
for removing dust, e.g. by spraying liquids; for lubricating, cooling or cleaning tool or work
}
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B28D 5/0082
. .
{
for supporting, holding, feeding, conveying or discharging work
}
B28D 5/0088
. . .
{
the supporting or holding device being angularly adjustable
}
B28D 5/0094
. . .
{
the supporting or holding device being of the vacuum type
}
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B28D 5/02
.
by rotary tools, e.g. drills
{
(B28D 5/0005 takes precedence)
}
B28D 5/021
. .
{
by drilling
}
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B28D 5/022
. .
{
by cutting with discs or wheels
}
B28D 5/023
. . .
{
with a cutting blade mounted on a carriage
}
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B28D 5/024
. . .
{
with the stock carried by a movable support for feeding stock into engagement with the cutting blade, e.g. stock carried by a pivoted arm or a carriage
}
B28D 5/025
. . . .
{
with the stock carried by a pivoted arm
}
B28D 5/026
. . .
{
with a cutting blade carried by a movable arm, e.g. pivoted (B28D 5/023 and B28D 5/028 take precedence)
}
B28D 5/027
. . .
{
with a cutting blade arranged underneath a stationary work table
}
B28D 5/028
. . .
{
with a ring blade having an inside cutting edge
}
B28D 5/029
. . .
{
with a plurality of cutting blades
}
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B28D 5/04
.
by tools other than rotary type, e.g. reciprocating tools
{
(B28D 5/0005 takes precedence)
}
B28D 5/042
. .
{
by cutting with blades or wires mounted in a reciprocating frame
}
B28D 5/045
. .
{
by cutting with wires or closed-loop blades (B28D 5/042 takes precedence)
}
B28D 5/047
. .
{
by ultrasonic cutting (using abrading substances or abrading tools subjected to a bouncing action by ultrasonic energy B24B 1/04)
}
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Accessories specially adapted for use with machines or devices of the preceding groups
{
(B28D 5/0058 takes precedence)
}
B28D 7/005
.
{
Devices for the automatic drive or the program control of the machines
}
B28D 7/02
.
for removing or laying dust, e.g. by spraying liquids; for cooling work
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B28D 7/04
.
for supporting or holding work
{
or conveying or discharging work (B28D 1/047, B28D 5/0041, B28D 5/0052 take precedence)
}
B28D 7/043
. .
{
the supporting or holding device being angularly adjustable
}
B28D 7/046
. .
{
the supporting or holding device being of the vacuum type
}
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Last Modified: 10/10/2013