| Patents for B21F 3 - Coiling wire into particular forms (1,688) |
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| 04/25/2002 | WO2002032601A1 Spring production system |
| 04/25/2002 | US20020046587 Method and apparatus for producing a helical spring |
| 04/25/2002 | DE10128252A1 Threaded spindle drive has threaded nut formed from helically wound profiled wire material fitted into sleeve |
| 04/24/2002 | EP1199118A2 Method and apparatus for producing a helical spring |
| 04/24/2002 | EP0572546B1 System and method for joining plastic materials |
| 04/23/2002 | US6375174 Curved helical compression spring |
| 04/23/2002 | US6374655 Spring winding automatic machine |
| 04/11/2002 | WO2002028566A1 Apparatus and method for making clamp rings |
| 04/04/2002 | WO2002026410A2 Method to fabricate continuous lengths of helical coil shaped memory wire |
| 03/27/2002 | CN2483117Y Electric motor coiling wire mould |
| 02/21/2002 | WO2002013708A2 Method of making vaso-occlusive coils |
| 02/21/2002 | CA2418223A1 Method of making vaso-occlusive coils |
| 02/19/2002 | US6348041 Guidewire |
| 02/14/2002 | US20020017334 Coil spring forming and conveying assembly |
| 02/06/2002 | EP1177056A1 Coil spring forming and conveying assembly |
| 01/31/2002 | US20020011090 Method for producing an inclined helical spring |
| 01/23/2002 | CN2472839Y Automatic multifunction steel hoop machine |
| 01/02/2002 | EP1165170A1 A guidewire |
| 12/27/2001 | US20010054786 Methods of manufacturing coils and apparatus for same |
| 12/20/2001 | US20010052721 Coil shaft and method for fabricating same |
| 12/19/2001 | EP1163890A2 Stent |
| 12/19/2001 | CN1326826A Eccentric flexible directly driving screw winder without belt driving |
| 11/06/2001 | US6313395 Interconnect structure for solar cells and method of making same |
| 10/24/2001 | CN2455408Y Continuous rod bending apparatus |
| 10/17/2001 | EP0750537B1 Apparatus for manufacturing mattresses and box springs |
| 10/11/2001 | DE10113208A1 Multiple wire coil shaft for rotary transmission unit, has coarse wound sections in which spirals of wires are spaced apart from one another, together with intermediate tightly wound sections |
| 09/06/2001 | US20010019189 Methods of manufacturing coils and apparatus for same |
| 08/09/2001 | US20010011791 Curved helical compression spring |
| 08/01/2001 | EP1120580A2 Curved helical compression spring |
| 07/26/2001 | US20010009315 Methods of manufacturing coils and apparatus for same |
| 07/24/2001 | US6264183 Methods of manufacturing coils and apparatus for same |
| 06/27/2001 | CN1301234A Apparatus for the production of pocketed coil springs |
| 06/27/2001 | CN1300707A Automatic multiple winder |
| 05/30/2001 | CN1066360C Method and apparatus for mfg. linear spring |
| 05/10/2001 | DE19951698A1 High rigidity coil spring manufacturing process, involving cold winding rod into spring and austenizing spring by induction heating |
| 05/09/2001 | CN1065461C Wire rope which is hard to twist |
| 04/25/2001 | EP1093870A2 Method of continuously controllably varying the initial stress of springs during their production and a machine for carrying out such a method |
| 04/25/2001 | CN1292943A Method and device for producing wave winding for stators or rotors of electric engines |
| 01/30/2001 | US6178862 Cutting tool assembly in coil spring winding machines |
| 01/25/2001 | WO2001005535A1 Coil spring forming and conveying assembly |
| 01/17/2001 | EP1068147A1 Apparatus for the production of pocketed coil springs |
| 12/27/2000 | EP1062722A1 Method and device for producing a wave winding for stators or rotors of electric engines |
| 12/21/2000 | DE19926298A1 Shaper for accurately forming coil springs from steel wire |
| 12/20/2000 | EP1060812A2 Wire for helical coil insert |
| 12/20/2000 | EP1060041A1 Spring winding automatic machine |
| 12/20/2000 | EP1028653A4 Guidewire with disposition to coil |
| 11/28/2000 | US6151942 Spring manufacturing apparatus |
| 11/08/2000 | EP1049548A1 Programmable servo-motor quality controlled continuous multiple coil spring forming method and apparatus |
| 11/07/2000 | US6142002 Spring manufacturing apparatus and tool selection apparatus |
| 11/02/2000 | EP1048374A2 Spring coiling arrangement, in particular for spring coiling machines |
| 10/31/2000 | US6139540 Guidewire with disposition to coil |
| 10/05/2000 | WO2000057944A1 A guidewire |
| 10/04/2000 | EP1040843A1 A guidewire |
| 10/03/2000 | US6125676 Control system for controlling a rod mill |
| 09/26/2000 | CA2100422C Method of and device for manufacturing curved helical springs |
| 09/21/2000 | DE19900922C1 Verfahren und Vorrichtung zur Herstellung einer Wellenwicklung für Statoren oder Rotoren elektrischer Maschinen Method and device for producing a wave winding for stators or rotors of electric machines |
| 08/23/2000 | EP1028653A1 Guidewire with disposition to coil |
| 08/22/2000 | US6106048 Sun visor for automobiles |
| 08/08/2000 | US6098909 Laying tube for windings |
| 08/01/2000 | US6094957 Method for bending difficult-to-work metallic wire and method for shaping coil section thereof |
| 07/20/2000 | WO2000042697A1 Method and device for producing a wave winding for stators or rotors of electric engines |
| 07/20/2000 | CA2323483A1 Method and device for producing a wave winding for stators or rotors of electric engines |
| 07/06/2000 | DE19919956C1 Spring winding machine produces selectively right or left-wound screw springs from wire and has intake rollers feeding wire along guide axis through wire guide with two winding apparatus |
| 05/16/2000 | US6062054 Spring forming apparatus |
| 04/11/2000 | US6047453 Air-core coil forming system |
| 04/04/2000 | US6044682 Wire product manufacturing apparatus |
| 03/02/2000 | DE19938905A1 A wire spring manufacturing machine has a rotating turret holding several selectable forming tools with has numerically controlled movement in three axes |
| 03/02/2000 | DE19938855A1 Spring prodn. system using wire emanating from end section of wire guide and coercive bending or coiling or winding of wire by tools in spring shaping chamber |
| 02/29/2000 | US6029494 Spring producing device |
| 12/28/1999 | US6006572 Spring manufacturing machine |
| 12/22/1999 | EP0965399A2 Process for the manufacture of a wire spring from a hard metal wire having a round section |
| 12/22/1999 | CN1047543C Rod coil ring former |
| 12/14/1999 | US6000265 Spring manufacturing apparatus |
| 11/25/1999 | DE19823198A1 Windungslegerohr The laying |
| 11/24/1999 | EP0958866A2 Coil forming apparatus |
| 11/03/1999 | CN1046105C High speed laying head |
| 10/20/1999 | EP0950445A2 Apparatus and method for making coil springs |
| 10/19/1999 | US5966811 Twist `N` curl |
| 10/07/1999 | WO1999050175A1 Apparatus for the production of pocketed coil springs |
| 10/07/1999 | CA2326597A1 Apparatus for the production of pocketed coil springs |
| 09/07/1999 | US5946960 Bending machine for bending pipes and wire-like material in general |
| 08/17/1999 | US5937685 Method and apparatus for linear spring |
| 08/03/1999 | US5931405 Method for achieving windings in radial layers |
| 07/27/1999 | US5927123 Coil spring shaper |
| 07/21/1999 | EP0930112A2 Spring manufacturing machine |
| 07/15/1999 | WO1999034943A1 Spring winding automatic machine |
| 07/15/1999 | DE19800671A1 Federwindeautomat Spring Coiling Machine |
| 07/01/1999 | WO1999032244A1 Programmable servo-motor quality controlled continuous multiple coil spring forming method and apparatus |
| 05/14/1999 | WO1999022643A1 Guidewire with disposition to coil |
| 05/14/1999 | CA2310473A1 Guidewire with disposition to coil |
| 05/12/1999 | DE19748133A1 Method of manufacturing compressed wire coil springs on automatic winding machine |
| 05/11/1999 | CA2104580C System and method for joining plastic materials |
| 03/30/1999 | US5887471 Spring manufacturing apparatus and manufacturing method of the same |
| 03/02/1999 | US5875666 Spring manufacturing apparatus and position adjustment apparatus for tools |
| 03/02/1999 | US5875664 Programmable servo-motor quality controlled continuous multiple coil spring forming method and apparatus |
| 02/09/1999 | US5868996 Device for manufacturing curved helical springs |
| 02/03/1999 | CN1206746A Technology for producing aluminium wire used in steelmaking deoxidation |
| 02/02/1999 | US5865051 Procedure and apparatus for the optimized manufacture of coil springs on automatic spring winding machines |
| 01/19/1999 | US5860308 Auxiliary bending device for a spring-making machine |
| 01/12/1999 | CA2145459C High speed laying head |