ClassID:

38306

B21C37/0815 - CPC Classification

Classification description:

Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes; Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation

Recent Application in this class:
#1
20230415213
2023-12-28

Method for producing open-seam pipes

#2
20210138521
2021-05-13

Process for the production of thin-walled hollow profiles which are composed of nonferrous metals and have small diameters

#3
20200078843
2020-03-12

Systems and methods for manufacturing a ring from a metal sheet

#4
20200047241
2020-02-13

Barrel tank seam welder system

#5
20190134697
2019-05-09

Barrel tank seam welder system

#6
20190071833
2019-03-07

Foundation pile for a wind turbine and methods for manufacturing a foundation pile

#7
20190039108
2019-02-07

Apparatus that manufactures closed-structure part

#8
20190039077
2019-02-07

Electrical dust filter manufacturing method and electrical dust filter manufactured thereby

#9
20190032819
2019-01-31

Pipe body, pipe and method of making pipe

#10
20180162205
2018-06-14

Bracket-integrated double-layer door impact beam, apparatus and method for manufacturing the same

#11
20180117290
2018-05-03

Dilation apparatus with malleable feature and apparatus to bend malleable feature

#12
20170274434
2017-09-28

Method of producing shaped article, tooling, and tubular shaped article

#13
20170072445
2017-03-16

Method and device for manufacturing a tubular lagging element from sheet metal

#14
20160094001
2016-03-31

Tube hydroforming of jointless USB stainless steel shell

#15
20160089623
2016-03-31

Method of manufacturing filter pipe for vehicle and filter pipe for vehicle

#16
20160082492
2016-03-24

Method for producing a multi-layer large pipe

#17
20160053662
2016-02-25

Method for encasing a body of an exhaust gas system

#18
20160016264
2016-01-21

Barrel tank seam welder system

#19
20150314395
2015-11-05

Method for producing an endless belt

#20
20150176272
2015-06-25

Square pipe, frame structure, square pipe manufacturing method, and square pipe manufacturing apparatus

#21
20150165503
2015-06-18

Method of manufacturing pipe with different diameter along a longitudinal direction and die for forming

#22
20150101388
2015-04-16

Method of manufacturing closed-structure part and apparatus for the same

#23
20150090361
2015-04-02

UOE steel pipe and structure

#24
20140348619
2014-11-27

Method for moving a packed section about a remote manufacturing yard

#25
20140345975
2014-11-27

Scaffolding assembly

#26
20140345504
2014-11-27

Assembly table for building air separation units remotely

#27
20140345352
2014-11-27

Trolley and method of using the trolley for vertical rolling

#28
20140345206
2014-11-27

Weather shelter for use in a remote manufacturing yard

#29
20140345115
2014-11-27

Remote manufacturing yard

#30
20140345114
2014-11-27

Yard leveling base and method of using the same

#31
20140345106
2014-11-27

Method for installing a condenser in a remote manufacturing yard

#32
20140345102
2014-11-27

Method of installing packing in a remote manufacturing yard

#33
20140261840
2014-09-18

Manufacture method of tubular member and tubular member manufactured by the same

#34
20140096579
2014-04-10

Method for producing slit hollow profiles

#35
20130202887
2013-08-08

Method for encasing a body of an exhaust gas system

#36
20130186164
2013-07-25

Apparatus and method for producing at least partially closed hollow profiles with a short cycle time

#37
20130104368
2013-05-02

Method for producing a hollow profiled section

#38
20120292157
2012-11-22

Conveying apparatus for objects and welding apparatus with such a conveying apparatus

#39
20120267138
2012-10-25

Hand-held power tool and production method

#40
20120073348
2012-03-29

METHOD FOR PRODUCING SEALING ELEMENTS

#41
20110198873
2011-08-18

Energy absorber for a bumper assembly of a vehicle and method for the manufacture thereof

#42
20110162431
2011-07-07

Partially reinforced hollow profile

#43
20110135370
2011-06-09

PRINT DEVICE, TRANSPORT UNIT, TRANSPORT ROLLER AND METHOD OF PRODUCING THE TRANSPORT ROLLER

#44
20100319433
2010-12-23

Process for producing a die

#45
20100300690
2010-12-02

Apparatus and method for increasing the amount of dynamic underbalance in a wellbore

#46
20100294014
2010-11-25

Process and apparatus for producing a hollow body, and hollow body

#47
20100193064
2010-08-05

Square pipe, frame structure, square pipe manufacturing method, and square pipe manufacturing apparatus

#48
20100038836
2010-02-18

Mandrel to facilitate thin sheet fabrication

#49
20090293981
2009-12-03

MULTI-LAYER PIPE AND METHOD FOR ITS MANUFACTURE

#50
20090288512
2009-11-26

KNOB SECUREMENT MEANS FOR A CONTROL DEVICE

#51
20090288467
2009-11-26

Multi-layer pipe and method for its manufacture

#52
20090178455
2009-07-16

Method and device for producing hollow profiled elements

#53
20090114703
2009-05-07

Device for producing a longitudinally welded hollow profile using a holding-down device

#54
20090044394
2009-02-19

Method and device for the coreless forming of hollow profiles

#55
20090038156
2009-02-12

Method of making a tubular support bar for a dashboard support

#56
20080314189
2008-12-25

Deformable element of a steering wheel spindle in the form of a corrugated tube

#57
20080092615
2008-04-24

Method and apparatus for the production of a longitudinal seam welded hollow profile

#58
20080087711
2008-04-17

Conveying apparatus for objects and welding apparatus with such a conveying apparatus

#59
20080035628
2008-02-14

Production of Ihpf Components Having a Flange

#60
20080028609
2008-02-07

Hollow member, manufacturing method thereof, fluid distribution system using the hollow member, and forming apparatus of hollow material

#61
20070271788
2007-11-29

Method and apparatus for manufacturing a muffler for automotive exhaust systems

#62
20070175261
2007-08-02

Method for producing from a metal sheet a hollow profile which is longitudinally slotted and provided with several longitudinal segments having different cross sections

#63
20070095001
2007-05-03

Continuous process of roll-forming pre-stamped varying shapes

#64
20070074556
2007-04-05

Continuous process of roll-forming stamped sheet

#65
20070045236
2007-03-01

Method and apparatus for making tubes

#66
20060277742
2006-12-14

Knock-down drums

#67
20060208036
2006-09-21

Tubes with an integrated flange consisting of flexibly rolled material for structural classis and body parts

#68
20060179769
2006-08-17

Method and apparatus for making tubes

#69
20060150388
2006-07-13

Metal foil tube and method and apparatus for production thereof

#70
20060138090
2006-06-29

System and method for manufacturing steel tapered poles

#71
20050241357
2005-11-03

Method for producing a metal tube

#72
20050145677
2005-07-07

Metal tubular body and manufacturing method thereof

#73
20050145676
2005-07-07

Metal tubular body and manufacturing method thereof

#74
20050126241
2005-06-16

Metal tube and its production method

#75
20050056075
2005-03-17

Process for press forming metal tubes

#76
20050028572
2005-02-10

Method for the production of a metal tube, in particular a gas distributor tube for vehicle airbags

#77
20050005662
2005-01-13

Device for forming thin-walled material into a sleeve-shaped body

#78
13599223
2015-06-09

Process for making an interlocking flanged bushing and products made by this process