| Patents for B21C 37 - Manufacture of metal sheets, rods, wire, tubes, profilesor like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape (9,784) |
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| 06/08/2000 | WO2000010746A3 Method for deforming through high inner pressure at least two hollow bodies having each at least one opening, especially metal tubes or metal hollow profiles |
| 06/07/2000 | CN1053128C Process of two layer lead soldered tube |
| 06/06/2000 | US6070786 Method of producing and utilizing deformable workpieces for high-pressure forming and products formed thereby |
| 06/06/2000 | US6070654 Heat pipe method for making the same and radiating structure |
| 06/06/2000 | US6070618 High pressure fuel injection pipe and a method of manufacturing the same |
| 06/06/2000 | US6070616 Process for mounting lugs and/or projections on a thin metal sheet and a thin metal sheet having lugs and/or projections as well as a rectangular tube made of thin metal sheets |
| 06/06/2000 | US6070448 Method of using profiles, and producing metal sheets with stepped cross-sections and different wall thicknesses |
| 06/02/2000 | WO2000031486A1 Internally grooved heat exchanger pipe and metal bar working roll for internally grooved heat exchanger pipes |
| 05/31/2000 | EP1004465A2 Side intrusion beam |
| 05/31/2000 | EP1003981A1 Hydraulic control clutch device equipped with a guide tube and method for producing such a tube |
| 05/31/2000 | DE19956463A1 Fabrication process for curved metal tube for heat exchangers etc. with bent tube with one curved and several straight sections formed to size in mold |
| 05/30/2000 | US6067832 Process for the production of an evaporator tube |
| 05/30/2000 | US6067829 Wire-spiralling machine |
| 05/25/2000 | WO2000029750A1 Worm for an eccentric screw pump or a subsurface drilling motor |
| 05/25/2000 | WO2000029164A1 Method and device for positioning edges, especially in tube welding |
| 05/25/2000 | WO2000029163A1 Method for welding tubes and device for carrying out said method |
| 05/25/2000 | WO2000029162A2 Bonding of steel strips in steel strip laminate pipe |
| 05/25/2000 | WO2000029138A1 Method for producing a profile section with varying wall thicknesses |
| 05/25/2000 | DE19853154A1 Making reeled flexible tubing and coaxial cables with exceptional properties, is achieved without kinking or waviness, by traveling ice plug technology in which local carbon dioxide solidification is induced |
| 05/25/2000 | DE19852462A1 Verfahren zum Herstellen eines Profils unterschiedlicher Wandstärke A method for producing a profile of different wall thickness |
| 05/25/2000 | DE19852380A1 Schnecke für eine Exzenterpumpe oder einen Untertagebohrmotor Screw for eccentric pump or a subsurface |
| 05/25/2000 | CA2350513A1 Method for welding tubes and device for carrying out said method |
| 05/25/2000 | CA2350512A1 Method and device for positioning edges, especially in tube welding |
| 05/24/2000 | EP1001856A1 METHOD FOR PRODUCING WELDED Cu AND Cu ALLOY PIPES |
| 05/24/2000 | CN1052670C Device for manufacturing automobile steering rack |
| 05/23/2000 | US6065321 Outlet for connecting spray nozzles and drop tubes to an irrigation pipe |
| 05/18/2000 | DE19841603C1 Vorrichtung zum Herstellen eines Metallbandes mit abgewinkelten Längsrädern An apparatus for producing a metal strip with bent longitudinal wheels |
| 05/17/2000 | EP1000676A2 Bending rolls, and pipe formed thereby |
| 05/17/2000 | CN1253050A Tube shaping equipment using tube bending roll, its shaping method and tube |
| 05/16/2000 | US6062270 Double-walled structure in a ventilation duct system |
| 05/10/2000 | EP0998994A2 Multi-wall tube |
| 05/10/2000 | EP0998359A1 Device and method for moulding a grooved structure into a tubular workpiece |
| 05/10/2000 | CN1252505A Multiple wall pipe |
| 05/09/2000 | US6058757 Machining of sheet by compression without removal of material |
| 05/04/2000 | DE19848323A1 Production of a composite material comprises heat treating a longitudinally extended base body made of two metallic materials |
| 05/02/2000 | US6056099 Method of making recesses in metallic workpieces for use torque transmitting apparatus |
| 04/28/2000 | CA2282143A1 Multi-wall tube |
| 04/27/2000 | WO2000023205A1 Method for the production of multi-channel tubes; multi-channel tubes obtained in this way; and an extrusion die and installation for carrying out the method |
| 04/26/2000 | EP0994982A1 Method for manufacturing a post and post manufactured according to said method |
| 04/25/2000 | US6054667 Method of manufacturing metal tubes |
| 04/25/2000 | US6053209 Process for manufacturing ribbed tubes and ribbed tubes thus manufactured |
| 04/20/2000 | WO2000021746A1 Method for obtaining thin, light and rigid metal parts |
| 04/20/2000 | WO2000021696A1 Apparatus and method for forming a pipe with increased wall-thickness at its ends |
| 04/20/2000 | WO2000000778A3 Radiating elements for heat exchangers and method of manufacturing such heat exchangers |
| 04/20/2000 | CA2346705A1 Apparatus and method for forming a pipe with increased wall-thickness at its ends |
| 04/19/2000 | EP0993939A1 Method of manufacturing thin, light and rigid metal pieces |
| 04/18/2000 | US6050301 Al alloy composite tube for refrigerant passages and method for producing the same |
| 04/18/2000 | US6049982 Sequential process including material selection, milling, die core disposing, diameter reducing and tapering of pipe head, first stage forming, tapering of branch pipes, second stage forming and bending forging |
| 04/18/2000 | US6049981 Method for manufacturing a header pipe |
| 04/11/2000 | US6049042 Electrical cables and methods of making same |
| 04/06/2000 | WO2000018973A1 Method for processing billets out of metals and alloys and the article |
| 04/04/2000 | US6044683 Apparatus and method for forming joints in tubing |
| 04/04/2000 | US6044680 Machining of sheet without removal of material |
| 03/30/2000 | WO2000017564A1 Method and apparatus for winding a helical pipe from its inside |
| 03/30/2000 | DE19928299A1 Mehrfach gewickeltes rostfreies Stahlrohr Multi-wound stainless steel pipe |
| 03/30/2000 | DE19844760A1 Laser beam welding head has a focus positioning device located on a housing above or below a window |
| 03/29/2000 | EP0988905A2 Tube forming machine using three point bending |
| 03/29/2000 | CN1050875C Energy absorbing pole |
| 03/28/2000 | US6041632 Pipe forming roll apparatus and method |
| 03/23/2000 | WO2000015429A1 Composite wire with noble metal cladding |
| 03/22/2000 | EP0987409A2 Vibration decoupler apparatus |
| 03/22/2000 | CN2369787Y Lubricating tube producing mold containing lubricating oil in it |
| 03/22/2000 | CN1050556C Method for producing electric-resistance-welded steel pipe |
| 03/21/2000 | US6038901 Method and device for producing press-rolled pipes with inner wall thickenings at the ends |
| 03/15/2000 | EP0985463A2 Device for producing a metal band with bent longitudinal edges |
| 03/15/2000 | EP0721818B1 Method of manufacturing laser welded pipes and apparatus for manufacturing the same |
| 03/15/2000 | EP0662018B1 Hollow bars and method of manufacture |
| 03/14/2000 | US6035686 Method and installation for producing biconical wire |
| 03/09/2000 | WO2000013193A1 Medical devices incorporating at least one element made from a plurality of twisted and drawn wires |
| 03/09/2000 | WO2000013192A1 Medical devices incorporating at least one element made from a plurality of twisted and drawn wires at least one of the wires being a nickel-titanium alloy wire |
| 03/09/2000 | WO2000012240A1 Internal high pressure forming method for a workpiece |
| 03/09/2000 | DE19840804A1 Laser welding for production of pipes with different wall thicknesses and diameters involves positioning of a laser welding head close to the strip forming zone for external welding of the contacting strip edges |
| 03/08/2000 | CN2367405Y Rolling-machine roll for producing trapezoidal side-slot type water-filter for well |
| 03/02/2000 | WO2000010750A1 Electrically-conductive hollow profile |
| 03/02/2000 | WO2000010749A1 System and method for manufacturing tubular products from tubular workpieces |
| 03/02/2000 | WO2000010746A2 Method for deforming through high inner pressure at least two hollow bodies having each at least one opening, especially metal tubes or metal hollow profiles |
| 03/02/2000 | WO2000010742A1 Method of manufacturing gas springs |
| 03/02/2000 | DE19837131A1 Method for joining hollow sections into framework uses a die to press the sections into shape by inner pressure which forges the joints |
| 03/02/2000 | DE19837130A1 Method for shaping and linking two or more hollow sections uses internal hydraulic pressure with the workpiece held in a die |
| 03/02/2000 | CA2341401A1 Method of manufacturing gas springs |
| 02/29/2000 | US6029714 Stainless steel pipe of bright annealing finish type, having highly-smoothed inner surface and method for producing the same |
| 02/29/2000 | US6029487 System and method for manufacturing tubular products from tubular workpieces |
| 02/22/2000 | US6028283 Assembly and method for welding |
| 02/22/2000 | US6027630 Method for electrochemical fabrication |
| 02/22/2000 | US6027011 Method and device for producing long metal tubes |
| 02/22/2000 | US6026892 Heat transfer tube with cross-grooved inner surface and manufacturing method thereof |
| 02/22/2000 | US6026666 Method for manufacturing internally geared parts |
| 02/22/2000 | CA2177177C Dual bias weld for continuous coiled tubing |
| 02/22/2000 | CA2165530C Vehicle body and method of manufacture |
| 02/16/2000 | EP0979688A1 Method of manufacturing copper tubes |
| 02/16/2000 | EP0979515A1 Electrical cables having low resistance and high flexibility and methods of making same |
| 02/15/2000 | US6023831 Process for producing metal-sheathed strands, especially glass fiber cables |
| 02/09/2000 | EP0978891A2 Multiple uneven plate, multiple uneven plate bending mold, multiple uneven plate manufacturing method and separator using multiple uneven plate |
| 02/08/2000 | US6021571 Apparatus for forming collars in workpieces |
| 02/03/2000 | WO2000005008A1 Die forging method |
| 02/03/2000 | CA2338376A1 Die forging method |
| 02/02/2000 | EP0976468A2 Roller mount with three-axis freedom |
| 02/02/2000 | EP0976466A2 Method and device for the manufacture of a tube from strip material |
| 02/02/2000 | CN2361400Y Steel butt-welded gapless three- and four-way pipe fitting forming block |
| 02/01/2000 | US6019736 Guidewire for catheter |