| Patents for B21K 21 - Making hollow articles not covered by any single one of groups (1,317) |
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| 04/26/2006 | EP1330333A4 Method of retrofitting a probe station |
| 04/26/2006 | EP1230507B1 Apparatus for swaging an object |
| 04/25/2006 | US7032286 Method of making steel couplers for joining concrete reinforcing bars |
| 04/20/2006 | US20060080818 Method for converting a truck body |
| 04/13/2006 | WO2006037167A1 Steering rack |
| 04/05/2006 | CN1754631A Manufacturing method for roller-shell smelting and casting for aluminium-casted mill |
| 04/04/2006 | US7022932 Outer shell unit and method of manufacturing the unit |
| 03/30/2006 | WO2006033327A1 Raceway ring for radial ball bearing, method of producing the raceway ring, and method and device for producing high precision ring |
| 03/23/2006 | DE4315289B4 Verfahren zum Herstellen von Metallteilen durch Freiformschmieden und Schmieden in einer Presse A method of producing metal parts by forging and forging in a press |
| 03/21/2006 | US7013696 Method of making a flanged tubular metallic part |
| 03/02/2006 | US20060042343 Method and device for the production of a tubular workpiece, particularly a shock absorber piston rod, and such a workpiece |
| 03/02/2006 | US20060042342 Method for manufacturing ring-shaped magnet material and manufacturing apparatus used therefor |
| 02/22/2006 | CN1736654A Integrated forging method of flange type step thin wall long sheath forging |
| 02/22/2006 | CN1736630A Method for producing circular cog hot forged from generator protective ring and mould |
| 01/26/2006 | US20060016237 Method for forging /molding a coarse blank of an oil cylinder |
| 01/25/2006 | CN1724940A Microwave oven exhaust pipe and punch for manufacturing exhaust pipe |
| 12/29/2005 | DE20122516U1 Pipe-drawing process involves exerting traction forces via drawing sector already passed through effective drawing cross section |
| 12/28/2005 | EP1409177B1 Making closed end tubes for surgical instruments |
| 12/22/2005 | DE102005026153A1 Verfahren zur Herstellung eines zylindrischen Lagerelements, ein Lagerelement und ein Nutenformstempelstift zur Herstellung eines Lagerelements A method for producing a cylindrical bearing element, a bearing element and a bearing element for producing a Nutenformstempelstift |
| 12/21/2005 | CN1232366C Method and equipment for producing directional vertical taper pipe in motorcycle through cold extrusion |
| 12/15/2005 | WO2005119156A2 Indirect evaporative cooling heat exchanger |
| 12/15/2005 | US20050274494 Method for forming end surface of heat pipe and structure thereof |
| 12/14/2005 | CN1707135A Method and apparatus for making a cylindrical bearing member |
| 12/08/2005 | US20050268466 Method and apparatus for making a cylindrical bearing member |
| 12/01/2005 | WO2005053891A3 Cold form nozzle for laser processing |
| 12/01/2005 | US20050262864 Indirect evaporative cooling heat exchanger |
| 11/16/2005 | CN1695847A Mfg.method of multi-side section ducted body and said body |
| 11/16/2005 | CN1227080C Technology for manufacturing blank of valve ball |
| 11/10/2005 | US20050247097 Oval cross section metal tube producing device and producing method |
| 11/03/2005 | WO2005102555A1 A method of producing thin walled metal tubes with thickened ends |
| 11/02/2005 | EP1507611B1 Methods for the cold extrusion of metallic elements with dead or through holes and plant for carrying out said methods |
| 10/27/2005 | WO2005099929A1 Molding method by forging and molding method for case |
| 10/27/2005 | US20050238509 Clutch suction disk for air compressor of vehicle air conditioner |
| 10/27/2005 | US20050236810 Method and apparatus for cold forging a trailer hitch receiving housing |
| 10/19/2005 | EP1586389A1 Oval cross section metal tube producing device and producing method |
| 10/19/2005 | CN1684783A Method and device for the production of a tubular workpiece, particularly a shock absorber piston rod, and such a workpiece |
| 10/19/2005 | CN1684781A Cold formed differential housing with integrated ring gear |
| 09/27/2005 | US6948244 Method of molding fluidic oscillator devices |
| 09/21/2005 | EP1577029A1 Method and device for increasing the wall thickness of the end of a thin-walled tube |
| 09/20/2005 | US6945085 Method of making metal containers |
| 09/15/2005 | US20050198797 Engine loader and transporter apparatus and methods |
| 09/14/2005 | EP1572394A1 Screw plug made of a metallic material, method for the production thereof, corresponding blank, and corresponding tool |
| 09/14/2005 | CN1668401A Frame producing method and frame |
| 09/01/2005 | US20050188738 Forged flange cylinder liner and method of manufacture |
| 08/25/2005 | US20050185870 Race member in hub unit and method of producing the same |
| 08/25/2005 | US20050183546 Machining method for micro abraders and micro abraders produced thereby |
| 08/24/2005 | EP1566286A2 Race member in hub unit and method of producing the same |
| 08/24/2005 | CN1657327A Race member in hub unit and method of producing the same |
| 08/23/2005 | US6931906 Method and apparatus for cold forging a trailer hitch receiving housing |
| 08/23/2005 | US6931904 Method of forming a trailer receiver tube using hollow forward extrusion |
| 08/18/2005 | DE102004060218A1 Verfahren zum Herstellen verstärkter rohrförmiger Elemente A method of manufacturing reinforced tubular members |
| 08/17/2005 | EP1563927A1 Method of forming the end region of a rigid sleeve, forming tool, and elastic articulation |
| 08/04/2005 | US20050166382 Method of forming thickened tubular members |
| 07/27/2005 | CN2712494Y Forming apparatus for pipe end forming machine |
| 07/27/2005 | CN1646244A Methods for the cold extrusion of metallic elements with dead or through holes and plant for carrying out said methods |
| 07/14/2005 | US20050153641 Folding knives |
| 07/14/2005 | DE10100668B4 Verfahren zur Herstellung eines Kugelgelenkgehäuses A method of manufacturing a ball joint housing |
| 07/07/2005 | WO2005061151A1 Method of forming member, valve guide and method of forming the valve guide, and method of forming tubular member |
| 07/07/2005 | US20050145004 Methods for the cold extrusion of metallic elements with dead or through holes and plant for carrying out said methods |
| 06/30/2005 | US20050138787 Vibration isolating bushing and its manufacturing method |
| 06/29/2005 | EP1545810A1 Cold formed differential housing with integrated ring gear |
| 06/22/2005 | EP1542819A1 Method and device for the production of a tubular workpiece, particularly a shock absorber piston rod, and such a workpiece |
| 06/16/2005 | WO2005053891A2 Cold form nozzle for laser processing |
| 06/16/2005 | US20050126250 Cold form nozzle for laser processing |
| 06/15/2005 | EP1539396A1 One-piece axle tube housing assembly |
| 06/09/2005 | WO2005026576A3 Differential with die formed housing |
| 06/08/2005 | EP1536899A1 Method for manufacture of a metal shell, and a cup designed to serve as a blank |
| 06/01/2005 | CN1623007A Sputtering targets, sputter reactors, methods of forming cast ingots, and methods of forming metallic articles |
| 05/25/2005 | CN1203490C Vessel and vessel producing method |
| 05/11/2005 | CN1613570A Retaining ring steel hot forging technology for generator |
| 05/05/2005 | US20050091825 Method of manufacturing hollow structural elements |
| 04/28/2005 | WO2004032691A3 Folding knives |
| 04/28/2005 | US20050087704 Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof |
| 04/28/2005 | US20050086992 Method of forming a trailer receiver tube using hollow forward extrusion |
| 04/20/2005 | EP1311358B1 Device for forming an end area of a workpiece |
| 03/30/2005 | CN1600468A Method and equipment for producing directional vertical taper pipe in motorcycle through cold extrusion |
| 03/24/2005 | WO2005026576A2 Differential with die formed housing |
| 03/24/2005 | CA2538819A1 Differential with die formed housing |
| 03/23/2005 | CN1597177A Metal blank for thermal expansion forming |
| 03/16/2005 | CN1192831C Hollow sphere and elliptic sphere making process |
| 03/02/2005 | EP1509355A2 Shaping metal articles |
| 03/02/2005 | CN1191147C Method for forming a hollow cavity on metal plate |
| 02/23/2005 | EP1507611A1 Methods for the cold extrusion of metallic elements with dead or through holes and plant for carrying out said methods |
| 02/17/2005 | WO2005014202A1 Deformed forging |
| 02/03/2005 | DE3742869B4 Rohrförmige Stabilisatorstange und Verfahren zu deren Herstellung A tubular stabilizer bar and process for their preparation |
| 02/03/2005 | DE10108861B4 Einrichtung zur Herstellung eines nahtlosen Hohlkörpers mit Boden oder eines nahtlosen Rohres aus Stahl Means for producing a seamless hollow body with base, or a seamless pipe made of steel |
| 01/27/2005 | US20050017099 Narrow diameter needle having reduced inner diameter tip |
| 01/20/2005 | US20050011245 Method and apparatus for working tube |
| 01/18/2005 | US6842982 Method of producing bushing |
| 01/04/2005 | US6837091 Tube drawing method and device |
| 12/22/2004 | EP1379342B1 Method for heading a bushing, particularly a bushing forming an elastic articulation and the elastic articulation and bushing obtained using said method |
| 12/21/2004 | US6832502 Apparatus for swaging an object |
| 12/14/2004 | US6830216 Method for retrofitting an inertia reel access door to an ejection seat |
| 12/09/2004 | US20040244459 Method and apparatus for producing thin walled tubular product with thick walled flange |
| 12/02/2004 | DE10321566A1 Verfahren zur Herstellung eines Hohlkörpers als Halbzeug für einen Tiegel oder eine Gießwalze Method for manufacturing a hollow body as semi-finished for a crucible or a casting roll |
| 11/24/2004 | EP1107845B1 Process for manufacturing pipes |
| 11/18/2004 | WO2004098807A1 Method of making steel couplers for joining concrete reinforcing bars |
| 11/17/2004 | EP1477248A2 Method of manufacturing a hollow body as semi-finished product for a crucible or casting roll |
| 10/13/2004 | CN1170643C Machining process of collecting pipe for quenching waste heat boiler |
| 09/23/2004 | US20040185337 Anode with strength in a fixing position and cathode for battery. |