ClassID:

38194

B21C1/22 - CPC Classification

Classification description:

Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing; Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles

Sub-classes:
Recent Application in this class:
#1
20260061469
2026-03-05

ROTARY DRAW MACHINE

#2
20240093809
2024-03-21

High pressure tube and method of manufacturing the same

#3
20230262913
2023-08-17

METHODS FOR FORMING ELECTRONIC DEVICE HOUSINGS

#4
20220212238
2022-07-07

Drawing system for generating profiled metal sections, and method for automatically operating such a drawing system

#5
20220152676
2022-05-19

Buckling-Assisted Manufacturing of Microscopic Metallic Tubes and Related Devices

#6
20220118494
2022-04-21

Method and device for producing a rod-shaped element

#7
20220040745
2022-02-10

Method for preparing multilayer metal composite pipe

#8
20210220887
2021-07-22

Continuous method for producing capillaries made of nonferrous alloys

#9
20210206529
2021-07-08

RESIN-COATED STEEL CAN AND METHOD FOR PRODUCING THE SAME

#10
20210138522
2021-05-13

PRODUCTION METHOD AND PRODUCTION DEVICE FOR TUBE WITH SPIRALLY GROOVED INNER SURFACE

#11
20210016335
2021-01-21

Annealing and drawing device for oxygen-free copper tube used for mobile phone heat pipe with large diameter-wall thickness ratio

#12
20200324328
2020-10-15

Method for manufacturing cold-forged, extruded aluminum alloy tube

#13
20200130035
2020-04-30

METHOD FOR PRODUCING A HIGH-PRESSURE PIPE

#14
20200061688
2020-02-27

Drawing machine and drawing method

#15
20200025339
2020-01-23

Sensor for a high-pressure line, and method for producing same

#16
20190368649
2019-12-05

Composite tube with a sacrificial layer for very thin wall heat exchangers

#17
20190344318
2019-11-14

Heat transfer tube, heat exchanger, and method for manufacturing heat transfer tube

#18
20190255317
2019-08-22

Production method for a ring electrode

#19
20190226569
2019-07-25

Motor and camshaft thereof, and manufacturing method for camshaft

#20
20190160504
2019-05-30

Method of producing inner spiral grooved tube and apparatus for producing inner spiral grooved tube

#21
20190120482
2019-04-25

Steam generator pipe having a turbulence installation body

#22
20190032819
2019-01-31

Pipe body, pipe and method of making pipe

#23
20180292763
2018-10-11

Metallic ingot for impact pressing, cylindrical metal member, and electrophotographic photoreceptor

#24
20180173123
2018-06-21

Metallic ingot for impact pressing, cylindrical metal member, and electrophotographic photoreceptor

#25
20180154412
2018-06-07

Method of producing inner spiral grooved tube and apparatus for producing inner spiral grooved tube

#26
20180093309
2018-04-05

Production method and production device for tube with spirally grooved inner surface

#27
20170283896
2017-10-05

Low-temperature high-strength-and-ductility high manganese steel, and high manganese steel plate and high manganese steel tube manufacturing process

#28
20170203348
2017-07-20

Production method and production device for tube with spirally grooved inner surface

#29
20170121809
2017-05-04

Methods for creating a zinc-metal oxide layer in metal components for corrosion resistance

#30
20160207085
2016-07-21

Formed material manufacturing method and formed material

#31
20160084433
2016-03-24

Tubular structure support with variable dimensions and mechanical properties

#32
20160024808
2016-01-28

Method for reinforcing and calibrating a pipe portion

#33
20150343506
2015-12-03

Method For Producing Different Wall Thicknesses Of A Container Tube

#34
20150082847
2015-03-26

Systems and methods for drawing materials

#35
20130269406
2013-10-17

Linear drawing machine and method for linear drawing of a workpiece through a drawing ring

#36
20130205861
2013-08-15

Method for producing double-wall tube with braided wires at its interface

#37
20130070889
2013-03-21

Double-walled tube with interface gap and production method therefor

#38
20110232352
2011-09-29

Method of producing ultrathin-wall seamless metal tube using floating plug

#39
20110220237
2011-09-15

BIMETALLIC TUBE

#40
20110024005
2011-02-03

Method for producing two-phase stainless steel pipe

#41
20100065141
2010-03-18

Tubing and method for manufacture

#42
20100064750
2010-03-18

Linear drawing machine and method for linear drawing of a workpiece through a drawing ring

#43
20090199924
2009-08-13

Cold roll forming method for reducing a diameter of a metal pipe, and a metal pipe product having its diameter reduced by such method

#44
20080148797
2008-06-26

Cold roll forming method for reducing a diameter of a metal pipe, and a metal pipe product having its diameter reduced by such method

#45
20070277580
2007-12-06

Aluminum pipe production method

#46
20070227224
2007-10-04

Variable curvature tube and draw die therefor

#47
20070113611
2007-05-24

Cold roll forming method for reducing a diameter of a metal pipe, and a metal pipe product having its diameter reduced by such method

#48
20060201223
2006-09-14

Cold roll forming method for reducing a diameter of a metal pipe, and a metal pipe product having its diameter reduced by such method

#49
20050145002
2005-07-07

Apparatus and method for the noncircular bending of tubes

#50
20050006900
2005-01-13

System and method for coupling conduit

#51
20050006899
2005-01-13

Weldable conduit and method

#52
20050005983
2005-01-13

Weldable conduit method of forming

#53
20050000261
2005-01-06

Variable curvature tube and draw die therefor