ClassID:

39332

B21K21/12 - CPC Classification

Classification description:

Making hollow articles not covered by a single preceding sub-group Shaping end portions of hollow articles

Sub-classes:
Recent Application in this class:
#1
20230183831
2023-06-15

Multi-thickness welded vehicle structure

#2
20230019199
2023-01-19

Equipment and method for forming a front toothing on an inner ring of a wheel hub

#3
20220388050
2022-12-08

Spinning device and spinning method

#4
20220241841
2022-08-04

EQUIPMENT AND METHOD FOR FORMING A FRONT TOOTHING ON AN INNER RING OF A WHEEL HUB

#5
20220152688
2022-05-19

Method and device for producing a hose nipple

#6
20220134414
2022-05-05

SLEEVE WITH RELIEF CAVITY FOR FLANGED TUBE ASSEMBLY

#7
20210402460
2021-12-30

Equipment and method for forming a front toothing on an inner ring of a wheel hub

#8
20210229160
2021-07-29

Method and device for thickening a plastically deformable hollow body wall of a hollow body, in particular in portions, and manufacturing method and machine for producing a hollow body

#9
20210094379
2021-04-01

Stabilizer and method of manufacturing same

#10
20210002749
2021-01-07

Pipe element for gas pressure vessel, and gas pressure vessel

#11
20200290113
2020-09-17

Shaft for steering device, method of manufacturing shaft for steering device, and electric power steering device

#12
20200248792
2020-08-06

Metal sleeve and method for producing it

#13
20190143386
2019-05-16

Method and former for necking and thickening tube end

#14
20190126336
2019-05-02

DEVICE AND METHOD FOR FLANGING AN END OF A RIGID TUBE FOR CONVEYING FLUID

#15
20190076902
2019-03-14

Method of manufacturing variable wall thickness steel pipe and variable wall thickness steel pipe

#16
20180257131
2018-09-13

Method for manufacturing cylindrical ring member, bearing, clutch, vehicle, and machine

#17
20180229576
2018-08-16

Vehicle stabilizer, processing device for eye portion of stabilizer, and processing method for eye portion

#18
20180185901
2018-07-05

Method and device for thickening a plastically deformable hollow body wall of a hollow body, in particular in portions, and manufacturing method and machine for producing a hollow body

#19
20180056369
2018-03-01

Hot steel forging in horizontal press

#20
20180017190
2018-01-18

Metal pipe having thickened end portion, and method of manufacturing same

#21
20170368588
2017-12-28

Method for machining outer circumference of metal end cross-section and method for joining metal component obtained by the machining method with another member

#22
20170173999
2017-06-22

Variable-wall light-weight axle shaft with an integral flange member and method for making the same

#23
20160332210
2016-11-17

Production method of wheel rim, and production method of vehicle wheel rim

#24
20160265645
2016-09-15

Metal sleeve and method for producing it

#25
20160076960
2016-03-17

Pressure sensor device and pressure sensor device manufacturing method

#26
20150367680
2015-12-24

Method of manufacturing hollow axle shaft for a vehicle

#27
20150285296
2015-10-08

Variable-wall light-weight axle shaft with an integral flange member and method for making the same

#28
20150283600
2015-10-08

Ball screw and manufacturing method of nut for ball screw

#29
20150273558
2015-10-01

Method of manufacturing rectangular tube having stepped portion

#30
20150273548
2015-10-01

Method of manufacturing rectangular tube having stepped portion

#31
20150096346
2015-04-09

Process for upset forging of drill pipe and articles produced thereby

#32
20140354024
2014-12-04

Method for producing a vehicle seat fitting

#33
20140178708
2014-06-26

Integral workpiece having a duct, and manufacturing method for same

#34
20130181504
2013-07-18

Method of forming a frontal toothing on an inner ring of a wheel hub, upset collar and wheel hub with frontal toothing thus obtained

#35
20130181376
2013-07-18

Method of forming a frontal toothing on an inner ring of a wheel hub

#36
20130181375
2013-07-18

Method of forming a frontal toothing on an inner ring of a wheel hub

#37
20130180310
2013-07-18

Equipment for forming a frontal toothing, in particular on an inner ring of a wheel hub

#38
20130174422
2013-07-11

Method of forming a frontal toothing on an inner ring of a wheel hub

#39
20130112026
2013-05-09

Method for caulking ring gear, caulking tool used for method for caulking ring gear, and ring gear

#40
20130040161
2013-02-14

Method and tool for producing a component and a component produced by forming

#41
20130008275
2013-01-10

Method for manufacturing nut for ball screw and ball screw

#42
20120325036
2012-12-27

Ball Screw and Manufacturing Method of Nut for Ball Screw

#43
20120169045
2012-07-05

Screwed pipe joint and method for the production thereof

#44
20120131981
2012-05-31

Cold Forged Stub End

#45
20120042708
2012-02-23

Indexing machine with a plurality of workstations

#46
20110314889
2011-12-29

Method and system for upsetting hollow members

#47
20110243774
2011-10-06

Undercut stator for a positive displacment motor

#48
20110016944
2011-01-27

METHOD OF PRODUCING METALLIC MEMBER

#49
20100327486
2010-12-30

Manufacturing method of cylindrical member and manufacturing method of vibration damping rubber bushing having the cylindrical member

#50
20100326557
2010-12-30

Method for the production of hot-finished seamless pipes having optimized fatigue properties in the welded state

#51
20100201179
2010-08-12

Pretensioner and process for manufacturing the same

#52
20100143527
2010-06-10

EXTRUSION DIE AND METHOD FOR EXTRUDING A ROTOR SHAFT FOR A WIND TURBINE GENERATOR

#53
20100140920
2010-06-10

Pipe joint including a pipe and method for producing a joint section of a pipe joint

#54
20090308502
2009-12-17

Process for obtaining a pipe for supplying fuel to an internal combustion engine

#55
20090127271
2009-05-21

Method for Manufacturing Liner Component

#56
20080273936
2008-11-06

Method for Producing Rotationally Symmetrical, undercut Contours

#57
20080202622
2008-08-28

REFRIGERANT PIPE FOR REFRIGERATION CYCLE AND MANUFACTURING METHOD OF THE SAME

#58
20080127708
2008-06-05

Apparatus and method for automatic swaging of tubes

#59
20080053183
2008-03-06

Methods and systems for reducing tensile residual stresses in compressed tubing and metal tubing products produced from same

#60
20080053177
2008-03-06

One-piece flexible tube connector and method of making the same

#61
20080047125
2008-02-28

Method for forming tapered piston pins

#62
20070261459
2007-11-15

Method of forming trailer receiver

#63
20070137277
2007-06-21

Light weight, stiffened, twist resistant, extruded vehicle axle

#64
20060243154
2006-11-02

Inert ballistic element and process of manufacture

#65
20060225264
2006-10-12

Tow hitch receiver

#66
20060042343
2006-03-02

Method and device for the production of a tubular workpiece, particularly a shock absorber piston rod, and such a workpiece

#67
20050274494
2005-12-15

Method for forming end surface of heat pipe and structure thereof

#68
20050268466
2005-12-08

Method and apparatus for making a cylindrical bearing member

#69
20050236810
2005-10-27

Method and apparatus for cold forging a trailer hitch receiving housing

#70
20050188738
2005-09-01

Forged flange cylinder liner and method of manufacture

#71
20050166382
2005-08-04

Method of forming thickened tubular members

#72
20050138787
2005-06-30

Vibration isolating bushing and its manufacturing method

#73
20050086992
2005-04-28

Method of forming a trailer receiver tube using hollow forward extrusion

#74
20050035598
2005-02-17

Micro-tube connection

#75
20050017099
2005-01-27

Narrow diameter needle having reduced inner diameter tip

#76
20050011245
2005-01-20

Method and apparatus for working tube

#77
18669823
2025-05-20

Material dispense tips

#78
18143190
2024-06-25

Material dispense tips

#79
17689050
2023-05-16

Method for manufacturing a material dispense tip

#80
15954885
2018-12-18

Collet receiver hitch

#81
14217809
2016-11-08

Method for manufacturing a material dispense tip