ClassID:

38506

B21D9/15 - CPC Classification

Classification description:

Bending tubes using mandrels or the like using filling material of indefinite shape, e.g. sand, plastic material

Recent Application in this class:
#1
20220347733
2022-11-03

Electrically assisted forming process and device for high-strength metal alloy thin-walled pipe

#2
20210362209
2021-11-25

Apparatus and method for forming large-scale thin-walled ring shell by hot-press bending with internal gas pressure

#3
20210154722
2021-05-27

METHOD FOR BENDING HYDROFORMED COOLING DEVICES AND BENT HYDROFORMED COOLING DEVICES

#4
20190247786
2019-08-15

Centrifugal air separator coil manufacturing methods

#5
20190224736
2019-07-25

Differential temperature push bending method and device for tube with small bending radius

#6
20180021830
2018-01-25

METHOD FOR FORMING A TUBULAR BODY, UNDULATING TUBULAR BODY AND USE OF SAME

#7
20170239616
2017-08-24

Centrifugal air separator coil manufacturing tools and methods

#8
20140116668
2014-05-01

COOLER PIPE AND METHOD OF FORMING

#9
20140068945
2014-03-13

Method of producing tailored tubes

#10
20120104717
2012-05-03

Torsion beam manufacturing method and torsion beam

#11
20100018599
2010-01-28

Double wall duct system

#12
20090120150
2009-05-14

Controllable Fluids in Pipe Bending

#13
20090071222
2009-03-19

METHOD OF BENDING PIPE MATERIAL

#14
20080302775
2008-12-11

Metal forming apparatus and process with resistance heating

#15
20060108017
2006-05-25

Multiple pipe, method of manufacturing the multiple pipe and device for manufacturing multiple pipe

#16
20060101890
2006-05-18

Method for twisting a hollow metal tube

#17
20060060570
2006-03-23

Metal forming apparatus and process with resistance heating

#18
20060059972
2006-03-23

Device and method for forming piping components

#19
20050268687
2005-12-08

Manufacturing a curved measuring tube for a vibratory measurement pickup

#20
20050092053
2005-05-05

Grille and method and apparatuses for manufacturing it