| Patents for B21F 35 - Making springs from wire (1,103) |
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| 02/17/2011 | US20110036449 Spring Compactor Machine |
| 02/16/2011 | EP2283946A2 Method and device for producing parabolic guides and parabolic springs for, in particular, vehicle chassis, vehicle bodies and the like |
| 02/16/2011 | EP2282855A1 Method of manufacturing coil spring using helicoid reduction mill |
| 02/16/2011 | CN201744599U Cutter structure of wire forming machine |
| 02/16/2011 | CN201744598U Dynamic pressure device of spring |
| 02/09/2011 | CN201735715U Cutter seat moving mechanism of multi-station spring molding machine |
| 01/26/2011 | CN201720367U Wire winding mechanism with automatic rotating spring wire end |
| 01/26/2011 | CN101956583A Improvement of manufacturing process of automobile valve spring |
| 01/26/2011 | CN101954434A Square mattress spring processor |
| 01/20/2011 | DE102010017462A1 Drahtformungsvorrichtung Wire forming device |
| 01/19/2011 | EP2274116A1 Shaping station of a wire shaping machine with annular tool holder arm |
| 01/19/2011 | CN201711466U Compression spring wire forming machine |
| 01/19/2011 | CN101559463B Intelligent computerized numerical control (CNC) spring machine |
| 01/12/2011 | CN201702302U Automatic forming machine of pogo stick spring |
| 01/12/2011 | CN201702301U Tapered reed punch |
| 01/12/2011 | CN101941038A Computer numerical control constant force spring machine |
| 01/12/2011 | CN101941037A Method for manufacturing disc-shaped spring fillet and device thereof |
| 12/29/2010 | CN201684873U Spring head twisting machine |
| 12/23/2010 | WO2010146907A1 Method for manufacturing coil spring |
| 12/23/2010 | US20100320661 Thermocompensated spring and method for manufacturing the same |
| 12/22/2010 | CN201678440U Photo-electricity integration and PLC control cloth bag spring machine |
| 12/09/2010 | US20100308517 Coated spring and method of making the same |
| 12/08/2010 | CN101347813B Wire forming machine |
| 12/01/2010 | CN201659229U Multidirectional dynamic wire stock forming machine |
| 12/01/2010 | CN101898222A Small multi-strand spring numerical control machine tool |
| 11/30/2010 | US7841088 Method of producing a suspension coil spring |
| 11/25/2010 | WO2010134657A1 Method of manufacturing coil spring using helicoid reduction mill |
| 11/24/2010 | CN101896296A Apparatus and method for manufacturing barrel coil spring |
| 11/24/2010 | CN101890465A Spring head-torsion machine |
| 11/18/2010 | US20100289198 Multilayered canted coil springs and associated methods |
| 11/17/2010 | CN1875122B Stainless steel wire, spring, and method for producing spring |
| 11/11/2010 | WO2010129293A2 Multilayered canted coil springs and associated methods |
| 11/10/2010 | CN201625754U Tool holder rotary type wire forming machine |
| 11/10/2010 | CN201625753U Eight-axle numerical-control high-precision cylindrical helical compression spring forming machine |
| 11/10/2010 | CN101509766B On-line detecting method for spring end plane angle by machine vision system |
| 10/26/2010 | CA2445719C Device for bending an extremity of a torsional spring |
| 10/13/2010 | EP2239067A1 Spring production machine |
| 10/13/2010 | CN101856705A Wire winding mechanism capable of making spring wire material ends automatically rotate |
| 10/13/2010 | CN101856704A Spring production machine |
| 10/07/2010 | WO2010113661A1 Compression coil spring, and coil spring manufacturing device and manufacturing method |
| 10/07/2010 | US20100252139 Apparatus and method for shaping electric wire for stator coil of electric rotating machine |
| 10/06/2010 | CN201596735U 一种多工位弹簧成型机刀具座 A multi-station machine tool holder spring |
| 09/30/2010 | WO2010110949A2 Spring compactor machine |
| 09/23/2010 | DE102009016768B3 Federherstellungsmaschine Spring making machine |
| 09/22/2010 | CN201586719U Spring gathering device |
| 09/01/2010 | EP2223752A1 Tool construction set for creating bending tools which can be coupled to a tool unit of a bending machine for bending or coiling strand-like workpieces |
| 09/01/2010 | CN201565542U Fine adjustment mechanism for wire feeding wheels |
| 08/05/2010 | DE102009005357A1 Functional element e.g. spiral or balance-spring of mechanical oscillation system for wrist watch, involves subjecting functional elements to carbon-diffusion-treatment with predetermined atmospheric pressure |
| 08/04/2010 | EP2212581A2 Reverse engineering based coil spring design method |
| 08/04/2010 | CN201537668U Knife stand actuating device of computer spring machine |
| 07/07/2010 | CN201519727U Diameter changing mechanism of spring machine |
| 07/07/2010 | CN201519726U Automatic feeding frame mechanism of spring machine and tension detector used in same |
| 07/07/2010 | CN201519725U Dragging mechanism of spring machine |
| 06/10/2010 | DE102007035062B4 Federherstellungsvorrichtung und Steuerverfahren für diese Spring manufacturing apparatus and control method for this |
| 06/09/2010 | CN201500754U Feeding clamping mechanism for coiling machine |
| 06/03/2010 | WO2010060223A1 Apparatus and method for producing springs |
| 06/02/2010 | CN101716640A Spring machine clamping system |
| 06/02/2010 | CN101716638A Spring machine wire feeding wheel and wire feeding mechanism |
| 06/01/2010 | US7726872 Balance wheel, balance spring and other components and assemblies for a mechanical oscillator system and methods of manufacture |
| 05/26/2010 | CN201482886U Rapid forming tool of shielding springs for disc insulator |
| 05/19/2010 | CN201470798U One-step forming mould for alien spring |
| 04/21/2010 | CN101454094B Device and method for forming end of coiled spring |
| 04/07/2010 | CN101692162A Balance wheel, balance spring and other components and assemblies for a mechanical oscillator system and methods of manufacture |
| 03/31/2010 | CN201432146Y Blanking cutter of spring coiling machine |
| 03/31/2010 | CN201432073Y Intelligent computer numerical control spring machine |
| 03/31/2010 | CN201432072Y Main spindle box for curling large-diameter and high-intensity wire spring devices |
| 03/10/2010 | CN201419225Y Wire feeding shaft pressing-rising mechanism of spring machine |
| 03/10/2010 | CN201419224Y Spring processing device |
| 03/04/2010 | US20100052231 Coil spring forming apparatus and coil spring formed thereby |
| 01/27/2010 | EP2147227A1 Uninterrupted, nested spring and its manufacture |
| 01/27/2010 | CN201389604Y Spring preformer |
| 01/27/2010 | CN201389603Y Numerical control creel shaft lifting gear of computer torsion spring machine |
| 01/27/2010 | CN101633027A Digital control processing lathe of multi-strand springs |
| 01/27/2010 | CN101633026A Wire tension controller of multi-strand spring digital control lathe |
| 12/23/2009 | CN201366478Y Snap clasp straightening device |
| 12/16/2009 | CN100570512C Balance wheel, balance spring and other components and assemblies for a mechanical oscillator system, and methods of manufacturing same |
| 12/09/2009 | CN101596569A Spring processing device and method |
| 12/02/2009 | CN100563867C Spring manufacturing machine for processing conjoined spring |
| 11/25/2009 | EP2121212A1 Two-layer or multiple-layer compression spring |
| 11/05/2009 | WO2009133259A1 Shaping station of a wire shaping machine with annular tool holder arm |
| 11/05/2009 | CA2719501A1 Shaping station of a wire shaping machine with annular tool holder arm |
| 11/03/2009 | US7610787 Spring manufacturing apparatus and control method thereof |
| 10/29/2009 | DE212007000091U1 Ununterbrochene, ineinander angeordnete Feder Continuous, arranged one inside the spring |
| 10/21/2009 | CN201329395Y Wire drawing and winding machine system |
| 10/21/2009 | CN101559463A Intelligent computerized numerical control (CNC) spring machine |
| 09/24/2009 | DE102006040163B4 Verfahren und Vorrichtung zur Herstellung einer Schraubenfeder sowie Schraubenfeder Method and apparatus for producing a helical spring and coil spring |
| 09/23/2009 | EP2103362A2 Method for surface treating a spring |
| 09/11/2009 | WO2009054886A3 Reverse engineering based coil spring design method |
| 09/08/2009 | CA2464401C Multiple wire feed for spring coiling machine and method |
| 08/19/2009 | CN101509766A On-line detecting method for spring end plane angle by machine vision system |
| 08/12/2009 | CN101505889A Method to provide initial tension for coil spring and its application |
| 08/12/2009 | CN101502864A Spring pre-press |
| 08/06/2009 | WO2009096645A1 Manufacture apparatus for binder spring |
| 07/16/2009 | WO2009088552A1 Method and apparatus for creating stacks of nested sinuous springs |
| 07/16/2009 | DE102007048429B4 Rollenwickelstift Roll winding pin |
| 07/08/2009 | CN201267855Y Torsion spring device for spring machine with computer |
| 07/02/2009 | WO2009082059A1 Apparatus and method for manufacturing barrel coil spring |
| 06/10/2009 | CN201253667Y Spring-line curvature control structure of spring forming device |
| 06/10/2009 | CN101454094A Device and method for forming end of coiled spring |
| 05/28/2009 | US20090133459 Cable hanger production system and production method |