| Patents for B21F 35 - Making springs from wire (1,103) |
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| 09/02/2004 | CA2484536A1 Stranded mattress spring |
| 09/01/2004 | CN2637029Y Spring forming machine |
| 08/26/2004 | DE19938855B4 Vorrichtung zur Herstellung einer Feder Apparatus for manufacturing a spring |
| 08/18/2004 | CN1520949A Line spring shaping device |
| 08/12/2004 | US20040154365 Spring manufacturing machine |
| 08/11/2004 | CN2631664Y Feeder of spring maker |
| 08/11/2004 | CN2631663Y Automatic jump ring bender |
| 08/04/2004 | CN2629873Y Coarse pitch large-diameter spring machine |
| 07/28/2004 | EP1439924A1 Multiple wire feed for spring coiling machine and method |
| 07/28/2004 | CN2628179Y Movable surface plate device for spring forming machine |
| 07/22/2004 | DE202004003724U1 Spring for brake pedal travel simulator particularly for brake-by-wire vehicle brakes has initial tapered section terminating in a cylindrical section |
| 07/15/2004 | US20040137927 Device and methods for acquiring a public land mobile network of a mobile station and providing public land mobile network information in a cellular communication system |
| 07/14/2004 | CN2625075Y Wire rotating and feeding control device of spring forming machine |
| 06/10/2004 | US20040107560 Spring assembly and method for manufacturing the same |
| 05/27/2004 | US20040099031 Mold head device of spring forming machine |
| 05/19/2004 | CN1497199A Spring assembly and manufacturing method thereof |
| 05/06/2004 | EP1416186A2 Spring assembly and method for manufacturing the same |
| 04/22/2004 | DE10342451A1 Vorrichtung zur Federherstellung und daran befestigtes Antriebskraftübertragungsbauteil Apparatus for spring manufacturing and attached thereto driving force transmission member |
| 04/08/2004 | US20040065130 Spring manufacturing appatarus and driving force transmitting component mounted on the apparatus |
| 03/31/2004 | CN2608189Y Soft body furniture spring heat treating transfer mechanism |
| 03/09/2004 | US6701765 Spring manufacturing apparatus |
| 02/18/2004 | CN2603715Y Automatic serial spring machine of double thread rolling die |
| 02/11/2004 | EP1388383A2 Wire-forming machine |
| 02/05/2004 | WO2004011173A1 Device for orienting springs |
| 02/05/2004 | DE19736478B4 Vorrichtung zum Winden von Federn aus Draht An apparatus for winding springs from wire |
| 01/28/2004 | EP1052920B1 Spring interior and method of making same |
| 01/27/2004 | US6681809 Device for bending an extremity of a torsional spring |
| 01/14/2004 | CN2598682Y Fully automatic sofa spring machine |
| 01/14/2004 | CN1467045A Method of manufacturing a coil spring having an oblique and straight axial line |
| 01/01/2004 | US20040000180 Method of manufacturing a coil spring having an oblique and straight axial line |
| 12/18/2003 | WO2003103876A1 Dies for coils with reduced-diameter terminal convolutions |
| 10/16/2003 | US20030192359 Feeding and curling device for spring making machines |
| 09/30/2003 | US6627005 High fatigue-strength steel wire and spring, and processes for producing these |
| 09/23/2003 | US6622384 Method and apparatus for forming spring units |
| 09/18/2003 | US20030172531 Method of manufacturing flat wire coil springs to improve fatigue life and avoid blue brittleness |
| 09/17/2003 | CN1442249A Wire spring shaping apparatus |
| 09/10/2003 | CN2571522Y Overloading protective mechanism for automatic spring coiling machine |
| 09/10/2003 | CN2571521Y Coaxial cam unit and lever combined adjustable spring coiling mechanism |
| 09/04/2003 | US20030164019 Wire spring forming apparatus |
| 09/03/2003 | EP1340561A1 Wire spring forming apparatus |
| 08/27/2003 | EP1338357A2 Method and apparatus for producing a helical spring |
| 08/21/2003 | US20030158620 Method and apparatus for producing a helical spring |
| 08/20/2003 | EP1068147B1 Apparatus for the production of pocketed coil springs |
| 08/19/2003 | US6606894 Transmission mechanism for spring winding machine |
| 08/06/2003 | CN2564278Y Forming device for spring shaper |
| 07/30/2003 | EP1036851B1 High fatigue-strength steel wire and spring, and processes for producing these |
| 07/02/2003 | CN2558478Y Automatic two-way endless spring connecting and grooving machine |
| 07/01/2003 | US6584823 Two wire spring making machine and method |
| 06/26/2003 | WO2003051556A1 Two wire spring making machine and method |
| 06/26/2003 | US20030115928 Device for bending an extremity of a torsional spring |
| 06/03/2003 | US6571591 Spring manufacturing apparatus and wire guide used for the same |
| 05/01/2003 | WO2003035302A1 Multiple wire feed for spring coiling machine and method |
| 04/24/2003 | US20030074944 Multiple wire feed for spring coiling machine and method |
| 04/23/2003 | CN2546111Y Length-adjustable spiral coil forming machine |
| 04/22/2003 | US6550301 Method for producing an inclined helical spring |
| 04/08/2003 | US6543269 Apparatus for forming components from continuous stock |
| 04/02/2003 | CN2542364Y Driving mechanism of spring-making machine |
| 03/25/2003 | US6536483 Large wire loop filters and mechanical dampers |
| 01/29/2003 | EP0814923B1 Coil spring interior assembly method and apparatus |
| 01/22/2003 | EP1277993A1 Multipiece piston ring and methods and devices for the production thereof |
| 01/15/2003 | CN2530748Y Spring forming mechanism of spring forming machine |
| 01/08/2003 | EP1051271B1 Method and apparatus for forming spring units |
| 12/11/2002 | EP1060041B1 Spring winding automatic machine |
| 11/28/2002 | WO2002094473A1 Device for bending an extremity of a torsional spring |
| 11/28/2002 | US20020174907 Large wire loop filters and mechanical dampers |
| 11/07/2002 | US20020162380 Apparatus for forming components from continuous stock |
| 10/29/2002 | US6470725 Method of continuously and controlledly varying the initial stress of springs during their production and a machine for carrying out such a method |
| 10/24/2002 | WO2002083336A1 Method and apparatus of making spiral springs |
| 10/16/2002 | CN1374161A Making process and product of cold extruded torsional spring |
| 09/12/2002 | DE10134828A1 Federherstellvorrichtung Federherstellvorrichtung |
| 09/12/2002 | DE10134826A1 Federherstellvorrichtung und in dieser verwendete Drahtführung Federherstellvorrichtung and used in this wire guide |
| 08/15/2002 | US20020108420 Spring manufacturing apparatus |
| 08/15/2002 | US20020108419 Spring manufacturing apparatus and wire guide used for the same |
| 08/08/2002 | US20020104353 Two wire spring making machine and method |
| 07/04/2002 | DE10063913A1 Manufacturing machine for production of complex coiled springs has multiple processing stations on carousel for coiling and tempering |
| 05/29/2002 | CN1085798C Mattress innerspring structure having coaxial coil units |
| 05/28/2002 | US6393888 Spring winding device, particularly for spring winding machines |
| 04/25/2002 | WO2002032601A1 Spring production system |
| 04/23/2002 | US6375174 Curved helical compression spring |
| 04/23/2002 | US6374655 Spring winding automatic machine |
| 04/17/2002 | EP0917498B1 Device for the bending of springs for spring interior mattresses |
| 02/27/2002 | EP0830462B1 Method for making arcuate coil springs, resulting springs and devices for carrying out the method |
| 01/31/2002 | US20020011090 Method for producing an inclined helical spring |
| 12/26/2001 | CN2467845Y Driver for spring machine |
| 12/26/2001 | CN2467231Y Automatic spring machine |
| 12/12/2001 | EP0724406B1 Process of manufacturing an aneurysm clip |
| 08/09/2001 | US20010011791 Curved helical compression spring |
| 08/08/2001 | EP1122000A1 Process for the manufacture of a torsion spring arrangement and torsion spring arrangement |
| 08/01/2001 | EP1120580A2 Curved helical compression spring |
| 08/01/2001 | CN2441280Y Electronic fixer with enhanced prevention of electromagnetic interfere and by mechanic suction |
| 08/01/2001 | CN2440607Y Wire feeding central spindle structure of spring apparatus |
| 07/19/2001 | WO2001051833A1 Multipiece piston ring and methods and devices for the production thereof |
| 07/04/2001 | CN2437430Y Shaping device for spring machine |
| 06/27/2001 | CN1301234A Apparatus for the production of pocketed coil springs |
| 05/30/2001 | CN1066360C Method and apparatus for mfg. linear spring |
| 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 |
| 01/17/2001 | EP1068147A1 Apparatus for the production of pocketed coil springs |
| 01/10/2001 | EP1052920A4 Spring interior and method of making same |
| 12/20/2000 | EP1060041A1 Spring winding automatic machine |
| 11/28/2000 | US6151942 Spring manufacturing apparatus |