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CPC
COOPERATIVE PATENT CLASSIFICATION
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B23G
THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH (making helical grooves by turning B23B 5/48, by milling B23C 3/32, by forging, pressing, or hammering B21K 1/56, by grinding B24B 19/02; arrangements for copying or controlling B23Q; thread-forming by corrugating tubes B21D 15/04, by rolling B21H 3/02)
NOTE
-
The term "thread cutting" is to be understood as including the use of tools similar both in form and in manner of use to thread-cutting tools, but without removing any material

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B23G 1/00
Thread cutting; Automatic machines specially designed therefor
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B23G 1/02
.
on an external or internal cylindrical or conical surface, e.g. on recesses (B23G 1/16, B23G 1/22, B23G 1/32, B23G 1/36 take precedence)
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B23G 1/04
. .
Machines with one working-spindle
B23G 1/06
. . .
specially adapted for making conical screws, e.g. wood-screws
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B23G 1/08
. .
Machines with a plurality of working spindles
B23G 1/10
. . .
specially adapted for making conical screws, e.g. wood-screws
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B23G 1/12
. .
Machines with a toothed cutter in the shape of a spur-gear of the like which is rotated to generate the thread profile as the work rotates
B23G 1/14
. . .
specially adapted for making conical screws, e.g. wood-screws
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B23G 1/16
.
in holes of workpieces by taps (B23G 1/26, B23G 1/32, B23G 1/36 take precedence)
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B23G 1/18
. .
Machines with one working spindle
B23G 1/185
. . .
{
specially adapted for making nuts
}
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B23G 1/20
. .
Machines with a plurality of working spindles
B23G 1/205
. . .
{
specially adapted for making nuts
}
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B23G 1/22
.
Machines specially designed for operating on pipes or tubes
B23G 1/225
. .
{
automatically controlled
}
B23G 1/24
. .
portable
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B23G 1/26
.
Manually-operated thread-cutting devices (features of the threading tool per se B23G 5/00)
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B23G 1/261
. .
{
Die and tap wrenches (lubricating and cooling devices therefor B23G 5/005; B23G 1/265 takes precedence)
}
B23G 1/262
. . .
{
Tap wrenches having a V slot (B23G 1/264 takes precedence)
}
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B23G 1/263
. . .
{
Die wrenches having a cylindrical opening and a clamping screw
}
B23G 1/264
. . . .
{
comprising tap wrench features with a V slot
}
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B23G 1/265
. .
{
Die and tap wrenches with a guiding part (lubricating and cooling devices therefor B23G 5/005)
}
B23G 1/266
. . .
{
Tap wrenches having a V slot (B23G 1/268 takes precedence)
}
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B23G 1/267
. . .
{
Die wrenches having a cylindrical opening and a clamping screw
}
B23G 1/268
. . . .
{
comprising tap wrench features with a V slot
}
B23G 1/28
. .
with means for adjusting the threading tool
B23G 1/30
. .
without means for adjusting the threading tool, e.g. with die-stock (tap wrenches B25B)
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B23G 1/32
.
by milling
B23G 1/34
. .
with a cutting bit moving in a closed path arranged eccentrically with respect to the axis of the rotating workpieces
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B23G 1/36
.
by grinding
B23G 1/38
. .
with grinding discs guided along the workpiece in accordance with the pitch of the required thread
B23G 1/40
. .
with grinding discs guided radially to the workpiece
B23G 1/42
.
Centreless grinding
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B23G 1/44
.
Equipment or accessories specially designed for machines or devices for thread cutting
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B23G 1/46
. .
for holding the threading tools
{
B23B 31/083 takes precedence
}
B23G 1/465
. . .
{
comprising arrangements for reversing the rotation of the tool
}
B23G 1/48
. .
for guiding the threading tools
B23G 1/50
. .
for cutting thread by successive operations
B23G 1/52
. .
for operating on pipes or tubes
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B23G 3/00
Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working spindle
B23G 3/005
.
{
for enabling presses to be used for thread cutting
}
B23G 3/02
.
for withdrawing or resetting the threading tool
B23G 3/04
.
for repeatedly setting the treading tool in a predetermined working position
B23G 3/06
.
for compensating inaccuracies in the pitch of the lead-screw
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B23G 3/08
.
for advancing or controlling the threading tool or the work by templates, cams, or the like
B23G 3/10
. .
for cutting thread of variable pitch
B23G 3/12
. .
for using several adjacently-arranged threading tools, e.g. using several chasers
B23G 3/14
. .
for cutting thread of conical shape
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B23G 5/00
Thread-cutting tools; Die-heads
B23G 5/005
.
{
with lubrication or cooling devices
}
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B23G 5/02
.
without means for adjustment
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B23G 5/04
. .
Dies
B23G 5/043
. . .
{
with guiding means
}
B23G 5/046
. . .
{
for conical thread
}
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B23G 5/06
. .
Taps (chucks therefor B23B 31/00)
B23G 5/062
. . .
{
with a guiding means part
}
B23G 5/064
. . .
{
with weakened shank portion
}
B23G 5/066
. . .
{
with stops
}
B23G 5/068
. . .
{
with means for removing the broken tap
}
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B23G 5/08
.
with means for adjustment
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B23G 5/083
. .
{
Adjustable dies
}
B23G 5/086
. . .
{
with guiding means
}
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B23G 5/10
. .
Die-heads
B23G 5/103
. . .
{
with guiding means
}
B23G 5/106
. . .
{
Collet-type die-heads
}
B23G 5/12
. . .
self-releasing
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B23G 5/14
. .
Tapping-heads
B23G 5/16
. . .
self-releasing
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B23G 5/18
.
Milling cutters
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B23G 5/182
. .
{
combined with other tools
}
B23G 5/184
. . .
{
combined with drills (B23G 5/188 takes precedence)
}
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B23G 5/186
. . .
{
combined with chamfering tools
}
B23G 5/188
. . . .
{
and with drills
}
B23G 5/20
.
combined with other tools, e.g. drills
{
(B23G 5/182 takes precedence; screws which drill and tap F16B 25/00)
}
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B23G 7/00
Forming thread by means of tools similar both in form and in manner of use to thread-cutting tools, but without removing any material (features of machines or devices not specially adapted to the particular mode of forming the thread B23G 1/00)
B23G 7/02
.
Tools for this purpose
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B23G 9/00
Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread
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B23G 9/001
.
{
Working screws
}
B23G 9/002
. .
{
Slotting screw heads or shanks
}
B23G 9/003
. .
{
Deburring screws
}
B23G 9/004
. .
{
Finishing screws (B23G 9/003 takes precedence)
}
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B23G 9/005
.
{
Working nuts
}
B23G 9/006
. .
{
Slotting nuts
}
B23G 9/007
. .
{
Deburring nuts
}
B23G 9/008
. .
{
Finishing nuts (B23G 9/007 takes precedence)
}
B23G 9/009
.
{
Thread cleaning or repairing
}
B23G 11/00
Feeding or discharging mechanisms combined with, or arranged in, or specially adapted for use in connection with, thread-cutting machines (for machines tools in general B23Q)
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B23G 2200/00
Details of threading tools
B23G 2200/02
.
Tools in which the shank and the cutting part are made from different materials or from separate components
B23G 2200/04
.
Tools with negative cutting angles
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B23G 2200/06
.
Connections between parts of threading tools
B23G 2200/062
. .
Brazed connections
B23G 2200/065
. .
Glued connections
B23G 2200/067
. .
Welded connections
B23G 2200/08
.
Threading tools with adjustable elements (manually operated thread cutting devices with means for adjusting the threading tool B23G 1/28)
B23G 2200/10
.
Threading tools comprising cutting inserts
B23G 2200/12
.
Threading tools comprising inserts for thread forming
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B23G 2200/14
.
Multifunctional threading tools
B23G 2200/141
. .
Tools comprising means for deburring
B23G 2200/142
. .
Tools comprising means for forming threads by deformation
B23G 2200/143
. .
Tools comprising means for drilling
B23G 2200/144
. .
Tools comprising a die
B23G 2200/145
. .
Tools comprising means for milling features other than the thread
B23G 2200/146
. .
Tools comprising a tap
B23G 2200/147
. .
Tools comprising means for reaming
B23G 2200/148
. .
Tools having means for countersinking
B23G 2200/16
.
Tools with cutting edges spaced unequally around the circumference
B23G 2200/18
.
Tools rotatable in both directions
B23G 2200/20
.
Tools having a brush
B23G 2200/22
.
Tools having an end cap, e.g. for the distribution of cutting fluid
B23G 2200/24
.
Chip breakers
B23G 2200/26
.
Coatings of tools
B23G 2200/28
.
Threading tools having a conical form
B23G 2200/30
.
Cutting edges that are rounded in the cross-sectional view of the cutting edge
B23G 2200/32
.
Tools having a decreasing diameter in the direction of the shank from the tip
B23G 2200/34
.
Tools having an increasing diameter in the direction of the shank from the tip (B23G 2200/28 takes precedence)
B23G 2200/36
.
Tools having provision to produce threads of more than one type or size
B23G 2200/38
.
Tools with shanks having a working end at each end of the shank
B23G 2200/40
.
Tools with variable or different helix angles
B23G 2200/42
.
Hollow tools
B23G 2200/44
.
Taps with more than one threading section, the threading sections being axially spaced from one another
B23G 2200/46
.
Tools having a section of polygonal form, e.g. for the transmission of torque
B23G 2200/48
.
Spiral grooves, i.e. spiral flutes
B23G 2200/50
.
Tools in which the pitch of the teeth is a multiple of the pitch of the thread being produced
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B23G 2210/00
Details of threads produced
B23G 2210/04
.
Internal threads
B23G 2210/08
.
External threads
B23G 2210/12
.
Threads having a large diameter
B23G 2210/16
.
Multiple start threads
B23G 2210/21
.
Threads in nuts
B23G 2210/24
.
Threads having a variable pitch
B23G 2210/28
.
Threads having a rounded profile
B23G 2210/36
.
Threads having a square profile
B23G 2210/41
.
Threads having a stepped profile
B23G 2210/44
.
Threads having a trapezoidal profile
B23G 2210/48
.
Threads having a special form or profile not otherwise provided for
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B23G 2225/00
Materials of threading tools, workpieces or other structural elements
B23G 2225/04
.
Cubic boron nitride
B23G 2225/08
.
Cermets
B23G 2225/12
.
Chromium
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B23G 2225/16
.
Diamond
B23G 2225/165
. .
Polycrystalline diamond
B23G 2225/24
.
Elastomers, e.g. rubber
B23G 2225/28
.
Hard metal, i.e. cemented carbides
B23G 2225/32
.
High speed steel
B23G 2225/36
.
Molybdenum disulphide
B23G 2225/40
.
Plastics not otherwise provided for
B23G 2225/44
.
Titanium
B23G 2225/48
.
Titanium aluminium nitride (TiAlN)
B23G 2225/52
.
Titanium carbide
B23G 2225/56
.
Titanium carbide nitride (TiCN)
B23G 2225/60
.
Titanium nitride
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B23G 2240/00
Details of equipment for threading other than threading tools, details of the threading process
B23G 2240/04
.
Compensation of centrifugal force
B23G 2240/08
.
Evacuation of chips or fines
B23G 2240/12
.
Means for cooling or lubrication
B23G 2240/16
.
Equipment for producing threaded component with a rotating disc to hold the components
B23G 2240/20
.
Guiding devices with a pin affixable in a drilling chuck and with free rotation of the threading tool holder with respect to the pin
B23G 2240/24
.
Guides for threading tools having a V-groove for location on cylindrical workpieces
B23G 2240/28
.
Indication scales
B23G 2240/32
.
Threading devices designed to be mounted in the tailstock of a lathe
B23G 2240/36
.
Methods of threading not otherwise provided for
B23G 2240/40
.
Threading equipment having an integrally incorporated driving motor
B23G 2240/44
.
Tap or die wrenches with multiple locations for holding threading tools, e.g. for holding threading tools of different sizes
B23G 2240/48
.
Protective sleeves for taps
B23G 2240/52
.
Sensors
B23G 2240/56
.
Producing or refurbishing threads for spark plugs or glow plugs
B23G 2240/60
.
Thread whirling, i.e. production of a thread by means of an annular tool rotating about an axis not coincident with the axis of the thread being produced
This page is owned by Office of Patent Classification.
Last Modified: 04/16/2013 4:31:16 PM