B21D39/08 - CPC Classification Index

ClassID:

38719 ⎘

B21D39/08 - CPC Classification

Classification description:

Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating ; Tube expanders Tube expanders

Sub-classes:

B21D39/10 » with rollers for expanding only 15
B21D39/12 » with rollers for expanding and flanging 4
B21D39/14 » with balls 3
B21D39/16 » with torque limiting devices 2
B21D39/18 » Rollers of special shape 1
B21D39/20 » with mandrels, e.g. expandable 135

Recent Application in this class:

20240165689

2024-05-23

MACHINE FOR DEFORMATION MACHINING OF A TUBE AND/OR OF A COMPONENT ON THE TUBE

20230139096

2023-05-04

Electrically initiated elastomer member expansion for controlling tubing member assembly diameter

20230105665

2023-04-06

EXPANDABLE DEVICES

20220410247

2022-12-29

Heat exchanger and manufacturing method therefor

20210170471

2021-06-10

Electromagnetic forming method

20210154725

2021-05-27

Swage tool

20200139420

2020-05-07

Electromagnetic forming device and electromagnetic forming method for aluminum tube member

20180361449

2018-12-20

Mechanical spreader

20180257124

2018-09-13

PIPE EXPANDING PUNCH

#10

20180015528

2018-01-18

ROTATING INSERT FOR FLANGING AND WIDENING METAL TUBES, "A FLANGING BIT"

#11

20170225219

2017-08-10

AIR CONDITIONER FIN ASSEMBLY AUTOMATIC TUBE EXPANSION SYSTEM BASED ON DIGITAL BUS

#12

20170080473

2017-03-23

Hydro ironing

#13

20160311009

2016-10-27

Tube expander for heat exchanger coil units

#14

20160074925

2016-03-17

Flaring and swaging bits, and methods using same

#15

20160067762

2016-03-10

Tube expander for heat exchanger coil units

#16

20160067757

2016-03-10

Method and upsetting tool for producing highly dimensionally accurate half shells

#17

20150321237

2015-11-12

Structure of a tube expander

#18

20150266145

2015-09-24

Air intake separator systems and methods

#19

20140338877

2014-11-20

Method for producing a heat exchanger and heat exchanger obtained by said method, swage and tube expansion device for implementing said method

#20

20140090434

2014-04-03

Pipe diameter expansion apparatus and pipe diameter expansion method

#21

20130306182

2013-11-21

Method for lubricating interior of heat exchanger tube

#22

20130240264

2013-09-19

Permanent electrical contact applicable to the web of rails and the like

#23

20130213105

2013-08-22

METHOD AND APPARATUS FOR PRESSURE EXPANSION OF TUBING IN COIL ASSEMBLAGE

#24

20120181732

2012-07-19

Tubing expansion

#25

20110247196

2011-10-13

Method of manufacturing a rotor

#26

20080115939

2008-05-22

Radial Expansion of Tubular Members

#27

20070107195

2007-05-17

Tubing expansion

#28