| Patents for B21H 3 - Making helical bodies or bodies having parts of helical shape (2,057) |
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| 04/04/2007 | CN1942678A Threaded fastener |
| 03/21/2007 | CN1931513A Rolling rounder for rolling steel bar |
| 03/21/2007 | CN1931472A Helical tooth device for rolling steel bar |
| 03/21/2007 | CN1306176C Screw-thread fastener |
| 03/21/2007 | CN1306174C Self-tapping screw, blank, method and dies for making the same and method for joining thin workpieces |
| 03/15/2007 | DE102005043498A1 Mechanism advancing two tools against workpiece being processed, e.g. thread rolling machine, includes tool with rigid connection to drive |
| 03/14/2007 | EP1762313A1 Device for deforming a workpiece |
| 03/14/2007 | CN1304767C Fastener, forming method of the same and method of supporting component by frangible material using the same |
| 03/07/2007 | CN2875650Y Three shaft vertical joint thread roller |
| 03/07/2007 | CN1923401A Screw-thread ending and dome round-bottom tooth profile thread rolling wheel, thread-rolling die |
| 02/21/2007 | CN1301162C Automatic rolling machine with flat chasers |
| 02/21/2007 | CN1301161C Precise cold skew rolling forming method for rockbolt |
| 02/07/2007 | EP1749595A1 Rolling die and method of making a rod with a ball portion |
| 02/01/2007 | US20070022795 Rolling die and a method of making a rod with a ball portion |
| 01/30/2007 | US7169023 Method and apparatus for manufacturing hourglass worm rolling die |
| 01/24/2007 | EP1564423B1 Heat resistant drill screw |
| 01/10/2007 | CN1894433A Cold-rolled fixing screw comprising a self-tapping thread |
| 01/09/2007 | US7159429 Method and device for manufacturing bolt, screw rolling die used therefor, and multiple screw bolt |
| 01/04/2007 | DE102005031534A1 Verfahren zum Herstellen einer Schraube A method of manufacturing a screw |
| 01/03/2007 | EP1738844A1 Method of manufacturing a screw having a drilling tip, screw and rolling die |
| 01/03/2007 | EP1738086A1 Threaded fastener |
| 01/02/2007 | US7156600 Die for, method of making, and fastener with lobed primary thread lead and interposed dual auxiliary thread lead with improved substrate entry end portion |
| 12/20/2006 | EP1732717A2 Thread rolling attachment |
| 12/14/2006 | WO2006131248A1 Hollow bolt comprising a longitudinal bore |
| 12/07/2006 | US20060273672 Manufacturing method of armature shaft, and rotary electric machine |
| 12/07/2006 | DE19541955B4 Walzmaschine Rolling machine |
| 11/22/2006 | CN2838804Y Thread rolling device for screw-thread steel thread rolling machine tool |
| 11/16/2006 | WO2006121427A1 Fastener manufacturing apparatus and method |
| 11/15/2006 | CN1284643C Technology for making strengthened anchor such as end cold-pressing |
| 11/09/2006 | US20060252560 Self-attaching female fastener elements and method of forming same |
| 10/26/2006 | US20060236740 Method of producing left-right screw |
| 10/19/2006 | US20060234800 Titanium alloy bolt and its manufacturing process |
| 10/19/2006 | DE202006011950U1 Screw, bolt or closing ring bolt is produced by rolling and has an outer hexagon or multiple toothed attachment |
| 10/12/2006 | US20060225477 Method and device for manufacturing bolt, screw rolling die used therefor, and multiple screw bolt |
| 10/11/2006 | CN1843654A Method for improving service life of rolled spiral drill |
| 10/05/2006 | WO2006015444A3 A screw threaded member |
| 10/03/2006 | CA2401161C Smart machine tool system |
| 09/26/2006 | US7112142 Method of cold forming a self-attaching female fastener element |
| 09/21/2006 | DE4022197B4 Vorrichtung zum Nachwalzen von Gewinden Apparatus for rerolling threads |
| 09/20/2006 | CN2818011Y Rolling mould of thread roller |
| 09/19/2006 | US7107805 Method for the production of a spindle nut of a spherical thread drive mechanism |
| 09/06/2006 | CN2813154Y Screw rolling machine workpiece supporting frame |
| 09/05/2006 | US7101134 Fastener having multiple lobed thread |
| 08/31/2006 | DE10244483B4 Profilwalzmaschine mit Kraftrahmen zum Walzen mit außenverzahnten Rundwalzwerkzeugen Roll forming machine with force frame for rolling with external gear round rolling dies |
| 08/30/2006 | EP1694878A1 Cold-rolled fixing screw comprising a self-tapping thread |
| 08/30/2006 | CN2810814Y Tubular screw bolt rolling mill |
| 08/24/2006 | DE10334982B4 Verfahren und Vorrichtung zur Herstellung eines rotationssymmetrischen Hohlkörpers Method and apparatus for manufacturing a rotationally symmetrical hollow body |
| 08/10/2006 | WO2006083655A1 Major diameter correcting re-roll thread rolling die |
| 08/09/2006 | CN2803566Y Appts. for rolling ballscrew spiral scroll |
| 08/09/2006 | CN2803565Y Adjusting thread rolling machine |
| 08/03/2006 | US20060169015 Major diameter correcting re-roll thread rolling die |
| 08/02/2006 | CN1267662C Rolling die of ballscrew |
| 08/02/2006 | CN1267613C Multihead threading reinforcing bar joint, producer and producing method thereof |
| 07/27/2006 | WO2006077485A1 Improvements in and relating to threaded rods |
| 07/27/2006 | US20060162411 Automatic releasing-type rolling head for forming tapered thread on pipe |
| 07/27/2006 | US20060162409 Coldforming machine |
| 07/26/2006 | CN1809701A Magnesium-base alloy screw and method of manufacturing the same |
| 07/26/2006 | CN1266368C Auger drill |
| 07/19/2006 | CN2796889Y Reinforced bar rib peeling thread rolling machine |
| 07/12/2006 | CN2794684Y Horizontal inner screw copper pipe forming machine |
| 07/12/2006 | CN2794683Y Slide seat regulating structure of rolling machine |
| 07/12/2006 | CN1263890C Method for preparing diamond thin film self support round window sample |
| 07/11/2006 | US7073361 Tangential thread-rolling head |
| 06/28/2006 | CN1261706C Ball-screw nut and making method thereof, linear guiding device and ball-screw for turning |
| 06/27/2006 | US7065996 Rolling die for ball screw |
| 06/22/2006 | US20060130947 Magnesium-base alloy screw and method of manufacturing the same |
| 06/21/2006 | CN1260022C Processing method of drilling bit |
| 06/20/2006 | CA2490960A1 Bed knife and method of forming |
| 06/14/2006 | EP1667805A1 Automatic releasing-type rolling head for forming tapered thread on pipe |
| 06/07/2006 | CN1258668C Heating exchanger pipe with two-sided structure and its manufacturing method |
| 06/01/2006 | DE102004056921A1 Verfahren und Vorrichtung zum Präzisionsrollen von rotationssymmetrischen Bauteilen Method and apparatus for precision rolling of rotationally symmetrical components, |
| 06/01/2006 | DE102004053501B3 Kaltwalzmaschine und Kaltwalzverfahren Cold rolling machine and cold rolling process |
| 05/31/2006 | EP1661638A2 Method and device for precision rolling of rotationally symmetric workpieces |
| 05/31/2006 | EP1425514B1 Self-tapping screw, method and dies for making the same and method for joining thin workpieces |
| 05/30/2006 | US7051611 Method for producing a shaft and device containing one such a shaft |
| 05/30/2006 | US7051565 Cold forming machine |
| 05/26/2006 | WO2006054451A1 Multi-pitch screw and method and apparatus for manufacturing multi-pitch screw |
| 05/16/2006 | US7044702 Screw with a plurality of screwing angles and mold device for forming the same |
| 05/10/2006 | EP1655090A1 Rolling tap |
| 05/09/2006 | US7040850 Fastener for use with frangible material |
| 05/09/2006 | US7040131 Cold forming tool, machine and method |
| 05/04/2006 | WO2006045566A1 Cold rolling machine and cold rolling method |
| 05/02/2006 | US7037204 Standard threaded torque fastener with novel indentation patterns to enhance torque and self-locking capabilities |
| 04/27/2006 | WO2006043169A1 Screw and fastening system for profiled sheeting |
| 04/26/2006 | CN1764510A Method and device for manufacturing bolt, screw rolling die used therefor, and multiple screw bolt |
| 04/19/2006 | CN1251821C Pipeline thread rolling and processing method and roll machine |
| 04/19/2006 | CN1251820C Pipeline connection external thread oxial rolling machine |
| 03/29/2006 | EP1640622A1 Magnesium-base alloy screw and method of manufacturing the same |
| 03/23/2006 | WO2005007315A9 Automatic releasing-type rolling head for forming tapered thread on pipe |
| 03/23/2006 | US20060059968 Automatic rolling machine with flat chasers |
| 03/22/2006 | EP1507610B1 Automatic rolling machine with flat chasers |
| 03/01/2006 | CN2761309Y Screw thread rolling machine |
| 02/22/2006 | CN2759624Y Rib-pressing screw reinforcing bar mill with adjustable bore diameter |
| 02/15/2006 | EP1625902A1 Method and device for manufacturing bolt, screw rolling die used therefor, and multiple screw bolt |
| 02/15/2006 | EP1581352A4 Self-attaching female fastener elements and method fo forming same |
| 02/15/2006 | CN2757969Y Combined thread rolling die |
| 02/09/2006 | WO2006013723A1 Multi-pitch screw, and method and device for manufacturing multi-pitch screw |
| 02/08/2006 | CN2756350Y Device for forming spiral line on screw thread steel lateral rib |
| 01/31/2006 | US6991547 Roof bolts for use in mines, a method for their production and method for their installation |
| 01/24/2006 | US6988388 Thread rolling attachment |