Patents-Review.com
ClassID:

38321 ⎘

B21C37/121 - CPC Classification

Classification description:

Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes; Making tubes or metal hoses with helically arranged seams with non-welded and non-soldered seams

Recent Application in this class:
#1
20230271241
2023-08-31

Method for producing a carcass, a method of producing a flexible pipe and a flexible pipe

 #2
20220184681
2022-06-16

Elbow-shaped duct manufacturing apparatus

 #3
20220001430
2022-01-06

Tubular core and method

 #4
20210101196
2021-04-08

Armoured cable and its manufacture

 #5
20200230675
2020-07-23

Apparatus for forming in continuous a spiral seamed conduit, forming process and spriral conduit

 #6
20190316711
2019-10-17

Immobilised insert

 #7
20190193132
2019-06-27

DEVICE AND METHOD FOR PRODUCING STRIP WOUND TUBES

 #8
20180318896
2018-11-08

Apparatus and method for a helically perforated wound duct

 #9
20180299039
2018-10-18

Elongate tape element and method

 #10
20180099320
2018-04-12

Rectangilar-Ribbed Profile Tubular Core and Method

 #11
20180086593
2018-03-29

Tubular core and method

 #12
20170030498
2017-02-02

Openable corrugated hose, cable harness and method for producing an openable corrugated hose of this kind

 #13
20160175904
2016-06-23

Manufacturing method for interlocked tube and manufacturing device therefor

 #14
20160082494
2016-03-24

Machine for working ribbon-shaped elements

 #15
20160069486
2016-03-10

Elongate tape element and method

 #16
20160069485
2016-03-10

Elongate tape element and method

 #17
20150273552
2015-10-01

Method and apparatus for cutting openings in sidewall of spiral pipe

 #18
20150252920
2015-09-10

Flexible pipe carcass for controlling flow induced vibration in a riser

 #19
20150040633
2015-02-12

Systems and methods for forming a pipe carcass using multiple strips of material

 #20
20150040372
2015-02-12

Method and apparatus for manufacturing interlocking pipe

 #21
20140238094
2014-08-28

Flexible pipe carcass forming apparatus

 #22
20140190236
2014-07-10

Supply device, and method for supplying band-like member

 #23
20130319722
2013-12-05

Flexible tube, manufacturing method and apparatus

 #24
20130233433
2013-09-12

Process for manufacturing a wound hose, particularly a spiral wound metallic hose, as well as wound hose and flexible conduction element with a wound hose

 #25
20130167755
2013-07-04

Concrete reinforcing members, and associated methods of manufacture and use

 #26
20130015287
2013-01-17

SPIRALLY WOUND CHANNEL CORE

 #27
20120103051
2012-05-03

Method for manufacturing a flexible piping device for an exhaust gas system of a motor vehicle

 #28
20120103046
2012-05-03

FORMING HEAD FOR FORMING SPIRALLY SEAMED TUBE

 #29
20120042705
2012-02-23

APPARATUS FOR AND METHOD OF MANUFACTURING A HELICALLY WOUND TUBULAR STRUCTURE

 #30
20120036910
2012-02-16

WINDING APPARATUS FOR AND METHOD OF MANUFACTURING A HELICALLY WOUND TUBULAR STRUCTURES

 #31
20110277525
2011-11-17

APPARATUS FOR AND METHOD OF MANUFACTURING A HELICALLY WOUND TUBULAR STRUCTURE

 #32
20110271730
2011-11-10

APPARATUS FOR AND METHOD OF MANUFACTURING A HELICALLY WOUND TUBULAR STRUCTURE

 #33
20110072875
2011-03-31

Manufacturing apparatus and method of spiral duct including elbow

 #34
20110072650
2011-03-31

Joint jig of spiral duct manufacturing apparatus

 #35
20090320542
2009-12-31

Tube making machine with diameter control and method

 #36
20090301646
2009-12-10

Method and apparatus for manufacturing a wrap-around tube

 #37
20090272164
2009-11-05

Tube making machine with diameter control and method

 #38
20090235506
2009-09-24

Machine to produce expanded metal spirally lock-seamed tubing from solid coil stock

 #39
20080264510
2008-10-30

Apparatus for producing helically corrugated metal pipe and related method

 #40
20080222869
2008-09-18

Machine to produce expanded metal spirally lock-seamed tubing from solid coil stock

 #41
20080072642
2008-03-27

Apparatus for producing helically corrugated metal pipe and related method

 #42
20070251285
2007-11-01

Apparatus and method for manufacturing spiral duct

 #43
20070245789
2007-10-25

Method of producing helically corrugated metal pipe and related pipe construction

 #44
20070169528
2007-07-26

Pinch-point lock-seam tubing, pinch point seaming devices, and methods for manufacturing stabilized lock-seam tubing

 #45
20060156775
2006-07-20

Mobile pipe mill

 #46
20050268458
2005-12-08

Forming tool for use in a machine for making armored cable