ClassID:

38498

B21D9/073 - CPC Classification

Classification description:

Bending tubes using mandrels or the like co-operating with forming members with one or more swinging forming members engaging tube ends only with one swinging forming member

Recent Application in this class:
#1
20220152681
2022-05-19

Manufacturing device for bent pipe and method of manufacturing bent pipe

#2
20210220894
2021-07-22

Manufacturing device for bent pipe and method of manufacturing bent pipe

#3
20200348085
2020-11-05

ROUND METAL PIPE, HEAT EXCHANGER PROVIDED WITH SAME, PIPE BENDER, AND METHOD FOR BEND-PROCESSING ROUND METAL PIPE

#4
20180133773
2018-05-17

Pipe bend die unit

#5
20160256909
2016-09-08

Mandrel

#6
20160199896
2016-07-14

Tie bar tensioning system

#7
20160175909
2016-06-23

Pipe bend die unit, and pipe bending apparatus having the unit

#8
20120227456
2012-09-13

Machine For Bending Tubular Products and Tube Bending Machine

#9
20110016941
2011-01-27

Arrangement for bending tubular workpieces

#10
20100206036
2010-08-19

PIPE BENDING MACHINE WITH BENDING MANDREL HAVING A LOAD BEARING STRUCTURE WHICH IS PARTICULARLY RESISTANT TO WORKING STRESSES

#11
20090288465
2009-11-26

Method for bending pipes, rods, profiled sections and similar blanks, and corresponding device

#12
20090095044
2009-04-16

METHOD FOR PROLONGING SERVICE LIFE OF A MACHINE FOR BENDING TUBES

#13
20080295559
2008-12-04

Machine for cambering, forming, folding or bending bars, wires or extruded shapes

#14
20060201218
2006-09-14

Device for free three-dimensional profile forming

#15
20050210946
2005-09-29

Bending machine and tube support and drive device thereof

#16
20050160783
2005-07-28

Method of making pre-formed tubular members

#17
20050156355
2005-07-21

Production apparatus and production method for producing bent portion of multi-channel tube