ClassID:

38493

B21D9/03 - CPC Classification

Classification description:

Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length and built-up from loose elements, e.g. series of balls

Recent Application in this class:
#1
20240342780
2024-10-17

DEVICE FOR THE INTERNAL BENDING OF PIPES FOR PIPELINES

#2
20220143668
2022-05-12

Variable-diameter full-support mandrel structure with slider-type cross section for preventing reverse rotation of ratchet wheel

#3
20200353524
2020-11-12

Device for bending hollow structural components

#4
20190168275
2019-06-06

Pipe bending for reel-lay operations

#5
20180133773
2018-05-17

Pipe bend die unit

#6
20180085809
2018-03-29

Apparatus for improving the quality of tube bending and method that uses such apparatus

#7
20170239616
2017-08-24

Centrifugal air separator coil manufacturing tools and methods

#8
20160175913
2016-06-23

Method for manufacturing a split link for use in a flexible tube bending mandrel

#9
20160175909
2016-06-23

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

#10
20160030991
2016-02-04

Pipe bending for reel-lay operations

#11
20150328671
2015-11-19

Rotary-draw bending mandrel with galling-resistive inserts

#12
20150196946
2015-07-16

Mandrel for bending rectangular duct body

#13
20130031947
2013-02-07

Apparatus and method of manufacturing a split link for use in a flexible tube-bending mandrel

#14
20120000267
2012-01-05

Mandrel assembly for tube bending

#15
20110265536
2011-11-03

Supporting Core for Producing Hollow Profiled Elements

#16
20110259075
2011-10-27

Pipe Bending Machine

#17
20110088443
2011-04-21

Supporting core for producing hollow profiled elements

#18
20090255310
2009-10-15

Multi-directionally swept beam, roll former, and method

#19
20080267698
2008-10-30

QUICK-CONNECTOR FOR METALWORKING TOOL AND METHOD THEREFOR

#20
20080168820
2008-07-17

Pipe-bending machine mandrel

#21
20080163666
2008-07-10

Mandrel anchor for tube bending