| Patents for B21H 3 - Making helical bodies or bodies having parts of helical shape (2,057) |
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| 09/09/2009 | CN201304460Y A threading machine track safety device |
| 09/02/2009 | EP2095892A1 Profile roller machine |
| 09/02/2009 | CN201300182Y Feeding rail block-pressing device of tooth-rolling device |
| 08/27/2009 | US20090214321 Self-drilling screw and method of making the same |
| 08/19/2009 | CN201293193Y Oil filler |
| 08/12/2009 | CN100525999C Automatic screw and filling piece compounding device |
| 08/05/2009 | CN201283405Y Slide thread-rolling bed plate of thread-rolling machine |
| 08/05/2009 | CN101500727A Screw, bolt or locking ring bolt |
| 08/05/2009 | CN100523527C Threaded fastener |
| 08/05/2009 | CN100522461C Tangential rolling attachment for machine tool |
| 07/29/2009 | CN201279563Y Height adjustable supporting device for thread-rolling machine |
| 07/15/2009 | CN100513000C Processing tool of high strength bolt and processing method of the processing tool |
| 07/14/2009 | US7559846 Machining method and apparatus for thread formation on workpiece |
| 06/30/2009 | US7552610 Thread forming method, thread forming device, and thread forming tool |
| 06/24/2009 | CN201261056Y Reinforced bar screw rolling machine |
| 06/18/2009 | DE102007012220B4 Verfahren und Vorrichtung zur Bearbeitung von Werkstücken Method and device for machining of workpieces |
| 06/17/2009 | CN201257484Y Composite type double alloy dental lamina for processing thread of self-tapping screw |
| 06/10/2009 | CN201253668Y Internal die for internal thread steel pipe |
| 06/04/2009 | DE4307091B4 Mutter, insbesondere Radmutter Mother, in particular wheel nut |
| 06/04/2009 | DE10056275B4 Kugelgewindetrieb Ball Screw |
| 05/27/2009 | EP2063510A1 Manufacturing device and manufacturing method for spark plug |
| 05/27/2009 | CN201244647Y Guide dental plate with location function tooth plate |
| 05/27/2009 | CN101439384A Technique for rolling multiple-variety multiple-station spline threaded shaft |
| 05/22/2009 | WO2009062566A1 Method for producing a threaded insert with an internal and external thread, and threaded insert |
| 05/20/2009 | EP1133643B1 Lightweight threaded fastener, its method of manufacturing and thread rolling die |
| 05/20/2009 | DE102008045302A1 Thread and profile producing device, has drive provided for two rolling flanges for producing linear movement of rolling flanges relative to each other, and blank provided between rolling flanges, where drive is designed as linear motor |
| 04/29/2009 | CN101417390A Multi-axle cutting thread-rolling device |
| 04/22/2009 | CN201223917Y Machine for making screw on steel bar |
| 04/15/2009 | EP2046514A1 Screw, bolt or locking ring bolt |
| 04/15/2009 | CN101410202A Automatic releasing-type rolling head for forming tapered thread on pipe |
| 04/15/2009 | CN101406923A Method for manufacturing rolling cone and rolling screw shaft attached with thin radius R round bottom deep groove |
| 04/08/2009 | CN201217049Y Rolling machine structure improvement |
| 04/08/2009 | CN201217048Y Watery distension type anchor stock shaping machine |
| 04/08/2009 | CN101402126A Internal ribbed tube molding device |
| 04/08/2009 | CN100475381C Method for manufacturing double-head tooth screw |
| 04/08/2009 | CN100475373C Method for monitoring life period of mechanical manufacturing system and cool-shaped tool |
| 03/11/2009 | CN201205590Y Feeding mechanism for thread rolling machine |
| 03/05/2009 | DE10262224B4 Verfahren zur Herstellung einer Walzbacke, Walzbacke und Kugelumlaufspindel A method of manufacturing a rolling die, roller die and ballscrew |
| 03/04/2009 | CN201201026Y Adjustable mechanism for feeding nail blank of thread rolling machine |
| 03/04/2009 | CN201201025Y Energy-saving high-speed thread rolling machine with belt drive and gear drive |
| 03/04/2009 | CN201201024Y Inductive heating type special type machine for rolling screw thread |
| 02/26/2009 | DE202008015598U1 Walzmaschine mit Gewindewalzen zum Walzen von Zündkerzen mit orientiertem Gewinde für Brennkraftmaschinen Thread rolling machine with rolls for rolling spark plugs with oriented thread for internal combustion engines |
| 02/25/2009 | EP1088171B1 Thread forming fastener |
| 02/12/2009 | WO2009018992A1 Profile-rolling machine |
| 02/05/2009 | US20090035091 Threaded bolt and method for its production |
| 02/05/2009 | DE102007036733A1 Gewindebolzen und Verfahren zu seiner Herstellung Threaded bolts and process for its preparation |
| 02/05/2009 | DE102006030661B4 Hartmetallisches Profilwalzwerkzeug Hard Metallic roll forming tool |
| 02/04/2009 | EP2019737A1 Apparatus for threading cans |
| 01/29/2009 | US20090025443 Radial roller head |
| 01/28/2009 | CN201186331Y Mold for forming external spiral rollaway nest |
| 01/27/2009 | CA2314561C A bolt and a manufacturing method thereof |
| 01/15/2009 | US20090017925 Method for the cold extrusion of bolts, in particular for fastening the cutting blades of mowers or the like |
| 01/15/2009 | US20090017924 Method of manufacturing a bi-metal screw |
| 01/14/2009 | EP2014389A1 Radial rolling head |
| 01/14/2009 | CN101342653A Trapezoidal thread valve rod processing technique |
| 01/13/2009 | CA2277476C Improvements relating to screws and threadforms |
| 01/08/2009 | US20090007618 Apparatus and Method of Producing Spark Plug |
| 01/07/2009 | EP2012027A1 Magnesium-based alloy screw and producing method thereof |
| 01/07/2009 | CA2636097A1 Radial roller head |
| 01/06/2009 | US7473182 Spiral drive fastener with friction engageable surface |
| 12/24/2008 | WO2008156425A1 Thread forming screw thread and corresponding thread roll die |
| 12/24/2008 | CN100444985C Multi-pitch screw and method and apparatus for manufacturing multi-pitch screw |
| 12/23/2008 | US7468001 High-speed forming tap |
| 12/18/2008 | DE102005013746B4 Backenprofilwalze Back profiled roller |
| 12/17/2008 | CN101323006A Screw rolling machine for inner thread |
| 11/27/2008 | DE102007031753B3 Radialwalzkopf Radial roller head |
| 11/18/2008 | US7451542 Method of manufacture of heat-exchanger tube structured on both sides |
| 11/18/2008 | CA2420269C Fastener having multiple lobed thread |
| 11/13/2008 | WO2008136765A1 Screw head recess drive and corresponding driver tool and recess punch |
| 11/12/2008 | CN201147814Y Special thread rolling machine for pencil sharpener helical hob cutter |
| 11/06/2008 | WO2008073147A3 An improved threaded fastener with retainer and method of making such fastener |
| 11/06/2008 | DE19536817B4 Profilwalzwerkzeug zum profilierenden Kaltwalzen der Mantelfläche eines Werkstückes, insbesondere eines dünnwandigen Hohlteils Roll forming tool to be profiled cold rolling the lateral surface of a workpiece, in particular a thin-walled hollow part |
| 10/23/2008 | WO2008126344A1 Multi-thread rolling die manufacturing method, multi-thread rolling die, and multi-thread bolt manufacturing method using the same |
| 10/23/2008 | US20080261709 Arrangement for Gang Forming Tool |
| 10/23/2008 | US20080260493 Bolt and thread rolling die and the manufacture of the bolt |
| 10/22/2008 | CN201136035Y Ring-patterned credit cards at shank of blind rivet |
| 10/15/2008 | CN101284297A Processing method and apparatus of internal thread aluminium pipe |
| 10/15/2008 | CN100425779C Threaded deformed bar and method for making the bar |
| 10/01/2008 | CN201124211Y Trapezoidal thread rolling mould |
| 10/01/2008 | CN101274348A Thread roller air compression oil-blowing mechanism |
| 09/23/2008 | CA2390967C Fastener having multiple-bossed lead |
| 09/18/2008 | US20080226423 Multi-tiered-recess Screws |
| 09/18/2008 | US20080226422 Cone-Head Thrust Screw |
| 09/18/2008 | DE102007012220A1 Elongated work-piece machining method, involves feeding liquid into liquid bath with work-piece in form of two partial flows, where intensive heat exchange provided between partial flows that penetrate partially to each other |
| 09/03/2008 | CN100415439C Rolling rounder for rolling steel bar |
| 09/03/2008 | CN100415407C Helical tooth device for rolling steel bar |
| 08/27/2008 | CN101249543A Watery distension type anchor rod forming machine |
| 08/21/2008 | DE4307092B4 Mutter, insbesondere Radmutter Mother, in particular wheel nut |
| 08/14/2008 | US20080194348 Machining method and apparatus for thread formation on workpiece |
| 08/06/2008 | CN100408258C Integral screw blade winding and pressing formation apparatus |
| 07/31/2008 | WO2008091134A1 Yoke manufacturing method |
| 07/30/2008 | CN100406757C Pitch diameter displaced screw |
| 07/29/2008 | US7404769 Spiral drive fastener with engagement ramp |
| 07/22/2008 | US7402109 Radius gimlet point anti-stripout screw |
| 07/17/2008 | US20080171605 Master Spindle for Tapping Machine |
| 07/02/2008 | CN101209523A Method for processing stainless steel tube rolling thread |
| 06/26/2008 | DE102007050849A1 Method for manufacturing wheel bolt, particularly wheel bolt for mounting on vehicle wheels, involves forming wheel bolt with bolt head and bolt shaft by plastic deformation of tube shape element by rolling method |
| 06/25/2008 | CN101208527A Hollow bolt comprising a longitudinal bore |
| 06/19/2008 | US20080141748 Mechanism for feeding blanks to be threaded into a thread rolling machine |
| 06/19/2008 | DE102006057762A1 Making screws by adding head to shaft, presses more ductile head onto pre-formed, profiled shaft, to produce closed, interlocking bond between them |