ClassID:

38735

B21D41/04 - CPC Classification

Classification description:

Application of procedures in order to alter the diameter of tube ends Reducing; Closing

Sub-classes:
Recent Application in this class:
#1
20260070124
2026-03-12

METHOD FOR FORMING A TUBE

#2
20260020955
2026-01-22

SYSTEM FOR CRIMPING A PROSTHETIC HEART VALVE

#3
20240075860
2024-03-07

Headrest tube and method of forming same

#4
20240032956
2024-02-01

METHOD OF FORMING SUCTION INSTRUMENT END AND SHAVER INSTRUMENT END

#5
20230355386
2023-11-09

METHOD FOR CRIMPING A PROSTHETIC VALVE

#6
20230263628
2023-08-24

SYSTEM AND METHOD FOR CRIMPING A PROSTHETIC HEART VALVE

#7
20230256497
2023-08-17

Hydraulic crimp pressure feedback methods

#8
20220388050
2022-12-08

Spinning device and spinning method

#9
20220219218
2022-07-14

METHOD FOR PRODUCING A HOLLOW SHAFT

#10
20220203877
2022-06-30

Headrest tube and method of forming same

#11
20220178401
2022-06-09

Hollow shaft member and rolling device

#12
20220143664
2022-05-12

Hollow shaft

#13
20220041027
2022-02-10

Hollow coil spring and suspension device for vehicle

#14
20210220898
2021-07-22

MAGNESIUM ALLOY BUTTED TUBE DRAWING MECHANISM

#15
20210122129
2021-04-29

Method of manufacturing orifice

#16
20210025021
2021-01-28

Seamless steel pipe heat-treatment-finishing-treatment continuous facility

#17
20200178996
2020-06-11

Method of forming suction instrument end and shaver instrument end

#18
20200147664
2020-05-14

End grooving system and process for tubing

#19
20200122214
2020-04-23

Connecting element, method and apparatus for its production

#20
20200114413
2020-04-16

Hydraulic crimp pressure feedback methods

#21
20200001341
2020-01-02

Shaping tool for a workpiece, and device for deforming a workpiece using such a tool

#22
20190269509
2019-09-05

System and method for crimping a prosthetic valve

#23
20190176208
2019-06-13

CRIMPING MONITORING SYSTEM

#24
20190136643
2019-05-09

Method for manufacturing a turned-down centralizer sub assembly

#25
20190091745
2019-03-28

Method and tool for calibration of a hollow profile component produced by extrusion for automobile manufacturing

#26
20190033796
2019-01-31

Process for forming and assembling pipe sections using mechanical press fit pipe joints in a pipeline

#27
20190033795
2019-01-31

Process for preparing pipe sections of pipeline for mechanical press fit pipe joints

#28
20190030973
2019-01-31

Hollow coil spring and suspension device for vehicle

#29
20190025772
2019-01-24

Processes for preparing, forming and assembling pipe sections in a pipeline using mechanical press fit pipe joints

#30
20180200774
2018-07-19

Rolling-swaging tool and method for closing opening of cylindrical member using same

#31
20180193898
2018-07-12

Rotary pipe sizing tool

#32
20180169732
2018-06-21

Method and apparatus for the production of a tubular structure for a gas generator, and gas generator tubular structure

#33
20180163767
2018-06-14

Nut integrated with bracket and method of manufacturing the same

#34
20180066775
2018-03-08

Fitting, ferrule, and ferrule manufacturing method

#35
20180021836
2018-01-25

Method of manufacturing tooth-shaped component, and tooth-shaped component

#36
20170314435
2017-11-02

Muffler and/or exhaust apparatus and method of manufacture

#37
20170297083
2017-10-19

Swaging die holder

#38
20170232502
2017-08-17

Apparatus and method for forming an antipollution device housing

#39
20170183920
2017-06-29

COLLAR SWAGING OF SINGLE-PIECE CENTRALIZERS

#40
20170157877
2017-06-08

Method for production of a combustion chamber tube for restraint systems in vehicles and device for implementation of the method

#41
20170102674
2017-04-13

Systems for data monitoring and management of pipelines assembled with mechanical press fit pipe joints

#42
20170100806
2017-04-13

Processes for preparing, forming and assembling pipe sections in a pipeline using mechanical press fit pipe joints

#43
20170095851
2017-04-06

Shaping tool for a workpiece, and device for deforming a workpiece using such a tool

#44
20170087620
2017-03-30

Radial compression device with constrained dies

#45
20160325332
2016-11-10

Method and apparatus for forming elliptical hollow cylinder

#46
20160184096
2016-06-30

System and method for crimping a prosthetic heart valve

#47
20160144416
2016-05-26

Device for forming metals

#48
20160101491
2016-04-14

Apparatus and method for assembling, measuring, and monitoring integrity of mechanical pipe joints

#49
20160008862
2016-01-14

Method for manufacturing drive shaft

#50
20150359650
2015-12-17

Stent crimping tool insert, system, and method

#51
20150290698
2015-10-15

Apparatus and method for forming an antipollution device housing

#52
20150273558
2015-10-01

Method of manufacturing rectangular tube having stepped portion

#53
20150273548
2015-10-01

Method of manufacturing rectangular tube having stepped portion

#54
20150266081
2015-09-24

Method for manufacturing integrated aluminum alloy bicycle front fork

#55
20150190225
2015-07-09

System and method for crimping a prosthetic heart valve

#56
20150167870
2015-06-18

Fitting, ferrule, and ferrule manufacturing method

#57
20150053697
2015-02-26

Double swage airbag inflator vessel and methods for manufacture thereof

#58
20150007630
2015-01-08

System and method for crimping a prosthetic valve

#59
20150007629
2015-01-08

Tube end molding method

#60
20140260502
2014-09-18

Stent crimping tool insert, system, and method

#61
20140174144
2014-06-26

Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container

#62
20140083874
2014-03-27

Compressed gas cartridge and method for making same

#63
20130152659
2013-06-20

System and method for crimping a prosthetic valve

#64
20130125608
2013-05-23

Multi-sided tube swaging apparatus and method

#65
20120312066
2012-12-13

Method of Forming a Metal Container

#66
20120227935
2012-09-13

INTERCONNECTED HEAT PIPE ASSEMBLY AND METHOD FOR MANUFACTURING THE SAME

#67
20120198905
2012-08-09

Apparatus for manufacturing necking cans

#68
20120175097
2012-07-12

Method for enclosing heat pipe with metal and composite heat pipe thereof

#69
20120137519
2012-06-07

Apparatus and method for forming an antipollution device housing

#70
20120131975
2012-05-31

Method and forming machine for manufacturing a product having various diameters

#71
20120103120
2012-05-03

Hollow rack and hollow rack manufacturing method

#72
20120102739
2012-05-03

Hollow rack end diameter reducing method

#73
20120047982
2012-03-01

Swaging apparatus

#74
20120024032
2012-02-02

Spinning method for forming a diameter reduced portion

#75
20110250977
2011-10-13

METHOD FOR PRODUCING A SCREW FOUNDATION

#76
20110214476
2011-09-08

Radial compression mechanism with optimum die-to-die gap

#77
20110209802
2011-09-01

METHOD FOR PROCESSING STEEL TUBES AND THE LIKES

#78
20110185784
2011-08-04

Hydraulic swage press

#79
20110180471
2011-07-28

Method for making a bag filter housing

#80
20100187453
2010-07-29

Method and device for producing a high-pressure-tight connection and associated valve cartridge for a solenoid valve

#81
20100071635
2010-03-25

WATERTUBE AND METHOD OF MAKING AND ASSEMBLING SAME WITHIN A BOILER OR HEAT EXCHANGER

#82
20100058826
2010-03-11

Method of manufacturing container for absorbing fluid shock or mechanical shock

#83
20100024503
2010-02-04

Electromagnetic shape calibration of tubes

#84
20090272170
2009-11-05

Closing Method and Closing Machine

#85
20090255309
2009-10-15

Spinning method for forming pipe end

#86
20090205386
2009-08-20

Method for forming an end portion of a cylindrical workpiece

#87
20090193870
2009-08-06

Spinning method of a work piece in a non-circular cylindrical shape and apparatus for the same

#88
20090102234
2009-04-23

Tapered crushable polygonal structure

#89
20090014082
2009-01-15

Exhaust apparatus and method

#90
20080229856
2008-09-25

Hollow rack, hollow rack end diameter reducing method, hollow rack end diameter reducing apparatus, and hollow rack manufacturing method

#91
20080209729
2008-09-04

Automotive exhaust component and process of manufacture

#92
20080127699
2008-06-05

Method and apparatus for forming a changed diameter portion of a workpiece

#93
20080104822
2008-05-08

Protective sheet loader

#94
20080098601
2008-05-01

TUBULAR TAPERED CRUSHABLE STRUCTURES AND MANUFACTURING METHODS

#95
20080016933
2008-01-24

Molding method and molding apparatus

#96
20080007088
2008-01-10

Vehicle Frame Having Energy Management System And Method For Making Same

#97
20070251684
2007-11-01

Watertube and Method of Making and Assembling Same within a Boiler or Heat Exchanger

#98
20070243280
2007-10-18

Concentric machining device for a roller

#99
20070227001
2007-10-04

Method of producing metal tubular member

#100
20070075499
2007-04-05

Housing for Seals, Preferably Radial Shaft Seals, and Method for Manufacturing such a Housing

#101
20070033804
2007-02-15

Method for producing a fluid treatment device having a honeycomb member

#102
20060230802
2006-10-19

Apparatus for making grooved endform

#103
20060183383
2006-08-17

Protective sheet loader

#104
20060150669
2006-07-13

Method of connecting heat transfer pipe and capillary tube

#105
20060000074
2006-01-05

External tube deforming extraction device

#106
20050172693
2005-08-11

Method of fabricating a temperature sensing tube

#107
20050155404
2005-07-21

Linear drive metal forming machine

#108
20050144998
2005-07-07

Method and forming machine for manufacturing a product having various diameters

#109
20050081591
2005-04-21

Method and apparatus for lean spin forming transition portions having various shapes

#110
17681822
2023-01-24

Square tubing swager

#111
17573733
2025-04-08

Nonlinear bulk modulus material

#112
17193031
2021-11-30

Swage machine modular grab adapter systems and methods