ClassID:

38656

B21D28/28 - CPC Classification

Classification description:

Shaping by press-cutting; Perforating; Perforating, i.e. punching holes in tubes or other hollow bodies

Sub-classes:
Recent Application in this class:
#1
20260061476
2026-03-05

BATTERY CAN TRIMMING APPARATUS AND METHOD

#2
20250297701
2025-09-25

METHOD AND DEVICE FOR MAKING A T-BRANCH FOR PIPES

#3
20250256422
2025-08-14

PERFORATION SYSTEM AND METHOD FOR FORMING PERFORATIONS IN SIDE-WALLS OF GROUND-INSTALLED-PIPE

#4
20250178061
2025-06-05

DEVICE AND SYSTEM FOR LAYING AND INSERTING VARIABLE HOLES IN IRRIGATION TUBING

#5
20250108426
2025-04-03

TRIMMING DEVICE

#6
20240217289
2024-07-04

METHOD FOR MANUFACTURING VEHICLE SUSPENSION ARM AND VEHICLE SUSPENSION ARM

#7
20240110652
2024-04-04

MATING CONNECTOR FOR CONNECTING COMPONENTS FOR LIQUID OR GASEOUS MEDIA, AND CONNECTOR ASSEMBLY AND METHOD FOR PRODUCING SUCH A MATING CONNECTOR

#8
20240109117
2024-04-04

METHOD AND DEVICE FOR PERFORATING A PIPE WALL

#9
20230311189
2023-10-05

Method for chamfering installation position of water control valve of faucet body

#10
20230079039
2023-03-16

Press working method

#11
20230001465
2023-01-05

Tube processing systems

#12
20220410243
2022-12-29

APPARATUS FOR PRODUCING HOLLOW PANELS AND METHOD OF OPERATING SAME

#13
20220290957
2022-09-15

Bullet, method of manufacturing a bullet, punch for manufacturing a bullet, and method of rotationally securing a bullet core with respect to a bullet jacket of a bullet

#14
20220080613
2022-03-17

Apparatus for hole-making in an elongated, tubular body, and method of use of the apparatus

#15
20220001437
2022-01-06

SIDE PUNCHING MECHANISM WITH MOVABLE GUIDE BLOCK

#16
20210129201
2021-05-06

Slew-actuated piercing of radial wall

#17
20210121934
2021-04-29

Method and Device for Continuously Forming Wood/Bamboo Molded Hollow Wallboard with Embedded Reinforcing Ribs

#18
20210083539
2021-03-18

Stator and method of producing the same

#19
20200366039
2020-11-19

Coaxial connector and method for producing the outer contact of the same

#20
20200197998
2020-06-25

Metal pipe bending cutting machine

#21
20200188978
2020-06-18

Forming method and forming apparatus

#22
20200147825
2020-05-14

Apparatus for hole-making in an elongated, tubular body, and method of use of the apparatus

#23
20190374993
2019-12-12

Punching mold device capable of rotating a workpiece and punching method using thereof

#24
20190329312
2019-10-31

Press punching machine and respective method of punching apertures in elongated nonferric enclosed polygonally profiled workpieces

#25
20190119033
2019-04-25

Beverage can having a grommet

#26
20190090076
2019-03-21

Method of forming a speaker housing

#27
20190009323
2019-01-10

Slew-actuated piercing of radial wall

#28
20180214925
2018-08-02

Method and system for producing ring-shaped member for vehicle, and synchronizer ring

#29
20180207704
2018-07-26

PRESS PUNCHING MACHINE AND RESPECTIVE METHOD OF PUNCHING APERTURES IN ELONGATED NONFERRIC ENCLOSED POLYGONALLY PROFILED WORKPIECES

#30
20180200772
2018-07-19

Hole widening method, forming tool, and formed product

#31
20180117659
2018-05-03

Tubular steel product

#32
20180036782
2018-02-08

DEEP-DRAWING MACHINE WITH ROTATION CUTTING DEVICE

#33
20170333963
2017-11-23

Method of manufacturing piston of pump for brake system and pump for brake system including the piston

#34
20170305647
2017-10-26

Beverage can having a grommet

#35
20170183920
2017-06-29

COLLAR SWAGING OF SINGLE-PIECE CENTRALIZERS

#36
20160339501
2016-11-24

Burring method and burring apparatus

#37
20160236259
2016-08-18

Method and Apparatus for Attaching a Nut in a Hydro-Forming Tool

#38
20160101475
2016-04-14

Method and apparatus for separating hollow sections

#39
20150352622
2015-12-10

Method for forming a pressed component

#40
20150114067
2015-04-30

Method of forming a press-formed component and a die apparatus for forming a press-formed component

#41
20150114063
2015-04-30

System and method of forming hole in blank during hydroforming process

#42
20140311308
2014-10-23

Method and device for producing an energy-absorbing profile for a motor vehicle

#43
20140238962
2014-08-28

Method and device for disposing of a slug produced in a hole punching operation on a hollow profile

#44
20130333537
2013-12-19

Method for producing slots in a tube wall and slotting tool

#45
20130008001
2013-01-10

Automatic processing machine for header

#46
20130000373
2013-01-03

Method for manufacturing branched pipe and branched pipe manufacturing device

#47
20120308944
2012-12-06

METHOD OF MANUFACTURING PERFORATED PIPE FOR GAS GENERATOR, AS WELL AS GAS GENERATOR

#48
20120164260
2012-06-28

PIPE PROCESSING APPARATUS

#49
20120135264
2012-05-31

Method for obtaining an opening in a hollow-body member, and a hollow-body member provided with one or more openings obtained with said method

#50
20100224349
2010-09-09

Heat exchange tube

#51
20100104781
2010-04-29

Method for Working a Tube Made from a Metallic Material, and Such a Tube

#52
20100083803
2010-04-08

Perforating Apparatus

#53
20100031797
2010-02-11

Punch device for piercing hydro-formed member

#54
20100031722
2010-02-11

Piercing method and piercing apparatus using hydroforming and hydroformed part and structure

#55
20090090156
2009-04-09

Member having a chamfered through hole and manufacturing method of the same

#56
20090071215
2009-03-19

Hydroformed part, and mold used for making hydroformed part

#57
20090044584
2009-02-19

Multipart punch for hydro piercing

#58
20090038428
2009-02-12

Manufacturing method for metal member with through hole

#59
20080282865
2008-11-20

Apparatus for forming a baffle

#60
20080190163
2008-08-14

Apparatus for hole punching

#61
20080163662
2008-07-10

TUBE PUNCHING AND COLLARING SYSTEM, DEVICE AND METHOD

#62
20080060199
2008-03-13

Method of manufacturing a manifold

#63
20080034824
2008-02-14

Method and Device for Producing a Peripherally Closed Hollow Profile

#64
20080022833
2008-01-31

Device for Severing a Hollow Profile Shaped According to the Internal High-Pressure Deformation Process

#65
20070271979
2007-11-29

Punch For Producing Holes In The Wall Of Hollow Parts Subjected To The Action Of Internal High Pressure

#66
20070261459
2007-11-15

Method of forming trailer receiver

#67
20070210592
2007-09-13

Method and Device for Reinforcing a Hollow Section with a Sealed Periphery

#68
20070193323
2007-08-23

Punch, apparatus and method for forming opposing holes in a hollow part, and a part formed therefrom

#69
20070157695
2007-07-12

Punch, apparatus and method for forming opposing holes in a hollow part, and a part formed therefrom

#70
20070144228
2007-06-28

Tool and method for cutting a hollow profile

#71
20060288559
2006-12-28

Method and apparatus for attaching a fastener nut to a hydroformed part

#72
20060277958
2006-12-14

Hydroforming method and mold used for the hydroforming method

#73
20060137499
2006-06-29

Method of forming through-hole and through-hole forming machine

#74
20060123872
2006-06-15

Method of forming through-hole and through-hole forming machine

#75
20060107512
2006-05-25

Method of forming hydroformed member with opening

#76
20060065030
2006-03-30

In-die hydropiercing device for piercing holes in hydroformed parts

#77
20050268684
2005-12-08

Burring device

#78
20050257636
2005-11-24

Ball screw and method for producing a spindle nut, in particular of a ball screw

#79
20050223555
2005-10-13

Method for forming holes, component having holes, and liquid-discharge head

#80
20050199029
2005-09-15

Hydrotapping power unit

#81
20050081589
2005-04-21

Method and apparatus for forming a threaded hole in a hydroformed part

#82
20050051009
2005-03-10

Apparatus for forming a baffle

#83
20050016238
2005-01-27

Device for punching work pieces in an internal high-pressure forming tool

#84
20050016237
2005-01-27

Method and device for creating a hole on the outer circumference of a hollow profile

#85
17545359
2025-11-04

System, apparatus, and method for louver perforation

#86
17136531
2024-03-19

Punching device making large rectangular holes in rectangular tubing and method thereof

#87
13613851
2014-09-16

Connection and elbow in a gas appliance