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Color Curly Brackets (indicating CPC extensions to IPC)

CPC
COOPERATIVE PATENT CLASSIFICATION
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FORGING; HAMMERING; PRESSING; RIVETING; FORGE FURNACES (rolling of metal B21B; making particular products by forging or pressing B21K; cladding or plating B23K; finishing surfaces by hammering B23P 9/04; compacting surfaces by blasting with particulate material B24C 1/10; general features of presses, presses for consolidating scrap B30B; furnace in general F27)
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Preparing metal stock
{
or similar ancillary operations prior, during or post forging, e.g. heating or cooling (pretreatment for rolling B21B 1/02, B21B 15/0035)
}
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B21J 1/003
.
{
Selecting material
}
B21J 1/006
. .
{
Amorphous metal
}
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.
Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough (modifying the physical properties by deformation C21D 7/00, C22F 1/00)
B21J 1/025
. .
{
affecting grain orientation
}
.
Shaping in the rough solely by forging or pressing
.
Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
{
(B21J 5/063 takes precedence)
}
Lubricating during forging or pressing (lubricating in general F16N)
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Methods for forging, hammering, or pressing (for working sheet-metal or metal tubes, rods, or profiles B21D; for working wire B21F); Special equipment or accessories therefor
B21J 5/002
.
{
Hybrid process, e.g. forging following casting
}
B21J 5/004
.
{
Thixotropic process, i.e. forging at semi-solid state
}
B21J 5/006
.
{
using ultrasonic waves
}
B21J 5/008
.
{
Incremental forging
}
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.
Die forging; Trimming by making use of special dies;
{
Punching during forging
}
B21J 5/022
. .
{
Open die forging
}
B21J 5/025
. .
{
Closed die forging
}
B21J 5/027
. .
{
Trimming
}
.
by directly applied fluid pressure or explosive action
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.
for performing particular operations
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. .
{
Friction heat forging (friction heat riveting B21J 15/027)
}
. . .
{
Flow drilling
}
. .
Upsetting
. .
Piercing billets (in combination with extrusion B21C 23/00)
. .
Forming profiles on internal or external surfaces (making screw-thread by forging, pressing, or hammering B21K)
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Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features in section H)
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.
Special design or construction
. .
Power hammers
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. .
Drop hammers
. . .
with rigidly-guided hammer
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. .
with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers
. . .
the lever being a spring, i.e. spring hammers
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. .
Forging machines working with several hammers
. . .
{
the hammers being driven by a rotating annular driving member
}
. . .
in rotary arrangements
. .
Forging machines working with die jaws, e.g. pivoted, movable laterally of the forging or pressing direction e.g. for swaging
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B21J 7/20
.
Drives for hammers; Transmission means therefor
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. .
for power hammers
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. . .
operated by steam, air, or other gaseous pressure
. . . .
operated by internal combustion
. . .
operated by hydraulic or liquid pressure
. . .
operated by electro-magnets
. . .
operated by rotary drive, e.g. by electric motor
. . .
operating both the hammer and the anvil, so-called counter-tup
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. .
for drop hammers
B21J 7/38
. . .
driven by steam, air, or other gaseous pressure
B21J 7/40
. . .
driven by hydraulic or liquid pressure
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B21J 7/42
. . .
operated by rotary drive, e.g. electric motors
. . . .
equipped with belts, ropes, cables, chains
. .
Control devices specially adapted to forging hammers, not restricted to one of the preceding sub-groups
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Forging presses
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.
Special design or construction
. .
{
multi-stage forging presses (handling devices B21K 27/00)
}
. .
{
with rolling or wobbling dies
}
B21J 9/027
. .
{
with punches moving along auxiliary lateral directions (B21J 13/025 takes precedence)
}
. .
Piercing presses
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. .
Swaging presses; Upsetting presses
. . .
equipped with devices for heating the work-piece (electric heating elements H05B)
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B21J 9/10
.
Drives for forging presses
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. .
operated by hydraulic or liquid pressure
B21J 9/14
. . .
in conjunction with electric power
. . .
in conjunction with steam or gas power
. .
operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
. .
Control devices specially adapted to forging presses not restricted to one of the preceding sub-groups
Forging hammers combined with forging presses; Forging machines with provision for hammering and pressing
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Details of machines for forging, pressing, or hammering
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.
Dies or mountings therefor
B21J 13/025
. .
{
Dies with parts moving along auxiliary lateral directions
}
. .
Die mountings
.
Frames; Guides
.
Hammers tups; Anvils; Anvil blocks
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.
Accessories for handling work or tools
. .
{
handling of tools
}
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. .
Manipulators (in general B25J)
. . .
Turning means
. .
Ejecting devices
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Riveting
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.
Riveting procedures
. .
{
Setting rivets by means of swaged-on locking collars, e.g. lockbolts
}
. .
{
Setting self-piercing rivets
}
. .
{
Setting rivets by friction heating
}
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. .
Riveting hollow rivets mechanically
. . .
{
by pushing a drive-pin
}
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. . .
{
by pulling a mandrel
}
. . . .
{
and swaging locking means, i.e. locking the broken off mandrel head to the hollow rivet
}
. . .
{
by edge-curling
}
. . .
{
Setting self-drilling hollow rivets
}
. .
{
Riveting hollow rivets by means of hydraulic, liquid, or gas pressure (portable riveters B21J 15/105)
}
. .
riveting by applying heat
{
, e.g.
}
to the end parts of the rivets to enable heads to be formed
{
(B21J 15/027 takes precedence)
}
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.
Riveting machines (electric heating elements H05B)
. .
{
Portable riveters (pliers for riveting B21J 15/386)
}
. .
with tools or tool parts having a movement additional to the feed movement, e.g. spin
{
(B21J 15/027 takes precedence)
}
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. .
specially adapted for riveting specific articles, e.g. brake lining machines
. . .
{
Aerospace structures
}
. . .
{
Turbines
}
. . .
{
Composite articles
}
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. .
Drives for riveting machines; Transmission means therefor
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. . .
operated by air pressure or other gas pressure, e.g. explosion pressure
. . . .
{
by explosion pressure
}
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. . .
operated by hydraulic or liquid pressure
. . . .
{
Riveting tools having hand operated pumps for building up the hydraulic pressure
}
. . .
operated by both hydraulic or liquid pressure and gas pressure
. . .
operated by electro-magnets
. . .
operated by rotary drive, e.g. by electric motor
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. .
Control devices specially adapted to riveting machines not restricted to one of the preceding sub-groups
. . .
{
for controlling the rivet upset cycle
}
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B21J 15/30
. .
Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
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. . .
Devices for inserting or holding rivets in position with or without feeding arrangements
. . . .
{
using a carrier strip
}
. . . .
{
Broken-off mandrel collection
}
. . . .
for installing
{
multiple-type
}
tubular rivets
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. .
Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets
. . .
{
Mandrels for expanding parts of hollow rivets
}
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.
Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
. .
{
Hand tools for riveting
}
. .
{
Pliers for riveting
}
. .
for forming rivet heads
. .
Special clamping devices for workpieces to be riveted together, e.g. operating through the rivet holes
. .
Rivet hole positioners
. .
Positioners for rivets for making tube joints
. .
Devices for caulking rivets
. .
Removing or cutting devices for rivets
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Forge furnaces (furnaces for heat treatment C21D 9/00; furnaces in general F27)
.
electrically heated (electric heating elements H05B)
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Blacksmiths requisites not otherwise provided for
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.
Hearths; Air supply arrangements specially adapted therefor
. .
{
Tyre heaters
}
.
Anvils; Associated items
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013