Skip over navigation
Main CPC Sections USPC Class Numbers & Titles USPC Class Numbers Classification Search Page Contacts Help
Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC)
Printable version [PDF]
CPC
COOPERATIVE PATENT CLASSIFICATION
Collapse
B21J
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)
Collapse
B21J 1/00
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)
}
Collapse
B21J 1/003
.
{
Selecting material
}
B21J 1/006
. .
{
Amorphous metal
}
Collapse
B21J 1/02
.
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
}
B21J 1/04
.
Shaping in the rough solely by forging or pressing
B21J 1/06
.
Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
{
(B21J 5/063 takes precedence)
}
B21J 3/00
Lubricating during forging or pressing (lubricating in general F16N)
Collapse
B21J 5/00
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
}
Collapse
B21J 5/02
.
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
}
B21J 5/04
.
by directly applied fluid pressure or explosive action
Collapse
B21J 5/06
.
for performing particular operations
Collapse
B21J 5/063
. .
{
Friction heat forging (friction heat riveting B21J 15/027)
}
B21J 5/066
. . .
{
Flow drilling
}
B21J 5/08
. .
Upsetting
B21J 5/10
. .
Piercing billets (in combination with extrusion B21C 23/00)
B21J 5/12
. .
Forming profiles on internal or external surfaces (making screw-thread by forging, pressing, or hammering B21K)
Collapse
B21J 7/00
Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features in section H)
Collapse
B21J 7/02
.
Special design or construction
B21J 7/04
. .
Power hammers
Collapse
B21J 7/06
. .
Drop hammers
B21J 7/08
. . .
with rigidly-guided hammer
Collapse
B21J 7/10
. .
with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers
B21J 7/12
. . .
the lever being a spring, i.e. spring hammers
Collapse
B21J 7/14
. .
Forging machines working with several hammers
B21J 7/145
. . .
{
the hammers being driven by a rotating annular driving member
}
B21J 7/16
. . .
in rotary arrangements
B21J 7/18
. .
Forging machines working with die jaws, e.g. pivoted, movable laterally of the forging or pressing direction e.g. for swaging
Collapse
B21J 7/20
.
Drives for hammers; Transmission means therefor
Collapse
B21J 7/22
. .
for power hammers
Collapse
B21J 7/24
. . .
operated by steam, air, or other gaseous pressure
B21J 7/26
. . . .
operated by internal combustion
B21J 7/28
. . .
operated by hydraulic or liquid pressure
B21J 7/30
. . .
operated by electro-magnets
B21J 7/32
. . .
operated by rotary drive, e.g. by electric motor
B21J 7/34
. . .
operating both the hammer and the anvil, so-called counter-tup
Collapse
B21J 7/36
. .
for drop hammers
B21J 7/38
. . .
driven by steam, air, or other gaseous pressure
B21J 7/40
. . .
driven by hydraulic or liquid pressure
Collapse
B21J 7/42
. . .
operated by rotary drive, e.g. electric motors
B21J 7/44
. . . .
equipped with belts, ropes, cables, chains
B21J 7/46
. .
Control devices specially adapted to forging hammers, not restricted to one of the preceding sub-groups
Collapse
B21J 9/00
Forging presses
Collapse
B21J 9/02
.
Special design or construction
B21J 9/022
. .
{
multi-stage forging presses (handling devices B21K 27/00)
}
B21J 9/025
. .
{
with rolling or wobbling dies
}
B21J 9/027
. .
{
with punches moving along auxiliary lateral directions (B21J 13/025 takes precedence)
}
B21J 9/04
. .
Piercing presses
Collapse
B21J 9/06
. .
Swaging presses; Upsetting presses
B21J 9/08
. . .
equipped with devices for heating the work-piece (electric heating elements H05B)
Collapse
B21J 9/10
.
Drives for forging presses
Collapse
B21J 9/12
. .
operated by hydraulic or liquid pressure
B21J 9/14
. . .
in conjunction with electric power
B21J 9/16
. . .
in conjunction with steam or gas power
B21J 9/18
. .
operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
B21J 9/20
. .
Control devices specially adapted to forging presses not restricted to one of the preceding sub-groups
B21J 11/00
Forging hammers combined with forging presses; Forging machines with provision for hammering and pressing
Collapse
B21J 13/00
Details of machines for forging, pressing, or hammering
Collapse
B21J 13/02
.
Dies or mountings therefor
B21J 13/025
. .
{
Dies with parts moving along auxiliary lateral directions
}
B21J 13/03
. .
Die mountings
B21J 13/04
.
Frames; Guides
B21J 13/06
.
Hammers tups; Anvils; Anvil blocks
Collapse
B21J 13/08
.
Accessories for handling work or tools
B21J 13/085
. .
{
handling of tools
}
Collapse
B21J 13/10
. .
Manipulators (in general B25J)
B21J 13/12
. . .
Turning means
B21J 13/14
. .
Ejecting devices
Collapse
B21J 15/00
Riveting
Collapse
B21J 15/02
.
Riveting procedures
B21J 15/022
. .
{
Setting rivets by means of swaged-on locking collars, e.g. lockbolts
}
B21J 15/025
. .
{
Setting self-piercing rivets
}
B21J 15/027
. .
{
Setting rivets by friction heating
}
Collapse
B21J 15/04
. .
Riveting hollow rivets mechanically
B21J 15/041
. . .
{
by pushing a drive-pin
}
Collapse
B21J 15/043
. . .
{
by pulling a mandrel
}
B21J 15/045
. . . .
{
and swaging locking means, i.e. locking the broken off mandrel head to the hollow rivet
}
B21J 15/046
. . .
{
by edge-curling
}
B21J 15/048
. . .
{
Setting self-drilling hollow rivets
}
B21J 15/06
. .
{
Riveting hollow rivets by means of hydraulic, liquid, or gas pressure (portable riveters B21J 15/105)
}
B21J 15/08
. .
riveting by applying heat
{
, e.g.
}
 to the end parts of the rivets to enable heads to be formed
{
(B21J 15/027 takes precedence)
}
Collapse
B21J 15/10
.
Riveting machines (electric heating elements H05B)
B21J 15/105
. .
{
Portable riveters (pliers for riveting B21J 15/386)
}
B21J 15/12
. .
with tools or tool parts having a movement additional to the feed movement, e.g. spin
{
(B21J 15/027 takes precedence)
}
Collapse
B21J 15/14
. .
specially adapted for riveting specific articles, e.g. brake lining machines
B21J 15/142
. . .
{
Aerospace structures
}
B21J 15/145
. . .
{
Turbines
}
B21J 15/147
. . .
{
Composite articles
}
Collapse
B21J 15/16
. .
Drives for riveting machines; Transmission means therefor
Collapse
B21J 15/18
. . .
operated by air pressure or other gas pressure, e.g. explosion pressure
B21J 15/185
. . . .
{
by explosion pressure
}
Collapse
B21J 15/20
. . .
operated by hydraulic or liquid pressure
B21J 15/205
. . . .
{
Riveting tools having hand operated pumps for building up the hydraulic pressure
}
B21J 15/22
. . .
operated by both hydraulic or liquid pressure and gas pressure
B21J 15/24
. . .
operated by electro-magnets
B21J 15/26
. . .
operated by rotary drive, e.g. by electric motor
Collapse
B21J 15/28
. .
Control devices specially adapted to riveting machines not restricted to one of the preceding sub-groups
B21J 15/285
. . .
{
for controlling the rivet upset cycle
}
Collapse
B21J 15/30
. .
Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
Collapse
B21J 15/32
. . .
Devices for inserting or holding rivets in position with or without feeding arrangements
B21J 15/323
. . . .
{
using a carrier strip
}
B21J 15/326
. . . .
{
Broken-off mandrel collection
}
B21J 15/34
. . . .
for installing
{
multiple-type
}
 tubular rivets
Collapse
B21J 15/36
. .
Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets
B21J 15/365
. . .
{
Mandrels for expanding parts of hollow rivets
}
Collapse
B21J 15/38
.
Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
B21J 15/383
. .
{
Hand tools for riveting
}
B21J 15/386
. .
{
Pliers for riveting
}
B21J 15/40
. .
for forming rivet heads
B21J 15/42
. .
Special clamping devices for workpieces to be riveted together, e.g. operating through the rivet holes
B21J 15/44
. .
Rivet hole positioners
B21J 15/46
. .
Positioners for rivets for making tube joints
B21J 15/48
. .
Devices for caulking rivets
B21J 15/50
. .
Removing or cutting devices for rivets
Collapse
B21J 17/00
Forge furnaces (furnaces for heat treatment C21D 9/00; furnaces in general F27)
B21J 17/02
.
electrically heated (electric heating elements H05B)
Collapse
B21J 19/00
Blacksmiths requisites not otherwise provided for
Collapse
B21J 19/02
.
Hearths; Air supply arrangements specially adapted therefor
B21J 19/025
. .
{
Tyre heaters
}
B21J 19/04
.
Anvils; Associated items
This page is owned by Office of Patent Classification.
Last Modified: 04/16/2013 4:31:16 PM