| Patents for B21H 3 - Making helical bodies or bodies having parts of helical shape (2,057) |
|---|
| 12/14/2004 | CA2183026C Drill bit with debris conveying flute |
| 11/24/2004 | CN2657821Y Intensified rolling thread machining equipment for ribbed reinforced bar |
| 11/18/2004 | WO2004098824A1 Die installation mechanism in thread-cutting machine |
| 11/11/2004 | WO2004096488A1 Method of producing thread-rolling die |
| 11/10/2004 | CN2654247Y Automatic counting high speed thread rolling machine |
| 11/10/2004 | CN1544178A Pipeline thread rolling and processing method and roll machine |
| 11/03/2004 | EP1105654B1 Fastener having a lobular cross section and ridges along the thread axis |
| 11/03/2004 | CN2652554Y Variab frequency speed changing automatic high speed thread rolling machine |
| 11/03/2004 | CN2652553Y Forced time lubrication high speed thread rolling machine |
| 10/28/2004 | WO2004022986A3 Cone-head thrust screw |
| 10/27/2004 | CN2650904Y Reinforcing bar straight threaded screw roller |
| 10/07/2004 | WO2004085093A1 Method and device for manufacturing bolt, screw rolling die used therefor, and multiple screw bolt |
| 09/30/2004 | DE20122205U1 Kaltwalzmaschine Cold rolling machine |
| 09/29/2004 | CN2644047Y Threading shaping set |
| 09/23/2004 | DE19710730B4 Walzverfahren und Zweiwalzen-Profilwalzmaschine zum Herstellen von Steigungsprofilen mit ungerader Gangzahl auf rotationssymmetrische Werkstücke Rolling method and two-roll roll forming machine for producing gradient profiles with an odd number of gears to rotationally symmetrical workpieces |
| 09/22/2004 | EP1286794B1 Cold rolling machine |
| 09/22/2004 | CN2642430Y Detecting device for screw thread rolling machine |
| 09/22/2004 | CN2642429Y Lamp-holder screw-thread rolling machine |
| 09/16/2004 | DE10254319B3 Production of a screw having a bore tip for securing wood constructions comprises forming the thread and the tapping point in a common finishing step by rolling |
| 09/15/2004 | CN1166473C Method for producing ring gear |
| 09/09/2004 | US20040173000 Cold forming tool, machine and method |
| 09/08/2004 | CN1527908A Self-tapping screw, blank, method and dies for making the same and method for joining thin workpieces |
| 09/01/2004 | CN2637030Y Spinning type thread rolling machine |
| 09/01/2004 | CN1524642A Spiral internal-recessing metal pipe and method for manufacturing the same |
| 08/25/2004 | CN2635252Y Copper tube inner thread rotating press |
| 08/18/2004 | CN1162229C Method instead f cold rolling for making spline or screw template |
| 08/11/2004 | CN2631665Y Die for cold machining copper pipe with internal thread |
| 08/04/2004 | EP1442808A2 Flat rolling die |
| 07/29/2004 | DE10247566B4 Radialrollkopf Radial rolling head |
| 07/28/2004 | EP1439925A1 Cold forming tool, machine and method |
| 07/22/2004 | WO2004050269A3 Self-attaching female fastener elements and method fo forming same |
| 07/21/2004 | CN2626645Y Equal strength rib peeling and rolling external thread mechanism for steel bar with rib |
| 07/20/2004 | US6764263 Self-threading screw provided with a point and apparatus to produce it |
| 07/15/2004 | DE10308038B3 Threaded rolling head for rolling threads has front plate with breakthrough on radially outer side of each bearing boring |
| 07/08/2004 | US20040132534 Repair device for threaded members |
| 07/08/2004 | DE10259665A1 Contra-motion twin-tray roll forming machine tool press has integral hydrostatic spindle drive or electrical linear motor drive |
| 06/30/2004 | CN1508450A Screw-thread fastener |
| 06/23/2004 | EP1431591A1 Threaded fastener with a primary and a dual secondary threads |
| 06/23/2004 | CN2621098Y Machine tool suitable for processing straight thread rolling on reinforced bar excircle by multiple technology |
| 06/17/2004 | WO2004050269A2 Self-attaching female fastener elements and method fo forming same |
| 06/17/2004 | CA2502213A1 Self-attaching female fastener elements and method of forming same |
| 06/15/2004 | US6748779 Tangential rolling attachment for a machine tool |
| 06/10/2004 | US20040107755 Rolling die for ball screw |
| 06/09/2004 | EP1425514A1 Self-tapping screw, blank, method and dies for making the same and method for joining thin workpieces |
| 06/09/2004 | EP1377398A4 Process for forming a threaded member |
| 05/26/2004 | EP1109637B1 Light alloy thread-forming screw and its production method |
| 05/19/2004 | CN2616319Y Axial helical thread-rolling wheel rolling apparatus |
| 05/19/2004 | CN1496782A Tangential rolling attachment for machine tool |
| 04/29/2004 | US20040079133 Method for making a fastener |
| 04/22/2004 | DE10247566A1 Radialrollkopf Radial rolling head |
| 04/15/2004 | DE4307090B4 Mutter, insbesondere Radmutter Mother, in particular wheel nut |
| 04/15/2004 | DE10245738A1 Method for producing shaft shaped component with profiled grip for rubber mounting by rolling the profiles while extending the shaft |
| 04/14/2004 | EP1408245A1 A bolt and a die |
| 04/14/2004 | EP1407840A2 Radial rolling head |
| 04/14/2004 | CN2611072Y Steel bar end processing equipment assembling/disassembling rolling machine head integrally |
| 04/14/2004 | CN1488456A Method of cold-forming interna-thread for copper pipe and its special die |
| 04/08/2004 | DE10244483A1 Roll forming machine for profiling cylindrical workpieces has rotating profile tools on sledges having threaded rods driven by a motor to draw them towards each other |
| 04/01/2004 | US20040060335 Tangential rolling attachment for a machine tool |
| 04/01/2004 | DE202004000424U1 Axialgewinderollkopf Axial thread rolling |
| 03/31/2004 | EP1402973A2 Tangential rolling attachment for a machine tool |
| 03/31/2004 | CN2608190Y Ribbed bar uniform strength shallow threading deep milling straight thread processing equipment |
| 03/30/2004 | US6712708 Self-tapping screw, blank and method for joining thin workpieces and production method for the same |
| 03/23/2004 | US6708544 Thread rolling die and process for the production thereof |
| 03/18/2004 | WO2004022986A2 Cone-head thrust screw |
| 03/18/2004 | WO2003099488A3 Automatic rolling machine with flat chasers |
| 03/11/2004 | WO2004020124A1 Method for the production of a spindle nut of a spherical thread drive mechanism |
| 03/11/2004 | US20040045332 Load measuring system for a thread rolling machine and operating method therefor |
| 03/10/2004 | CN1480666A Rolling die of ballscrew |
| 03/03/2004 | CN2605089Y Adjustable supporting board evice for thread rolling mill |
| 02/26/2004 | DE10335628A1 Roller for ball spindle has conical lead-in section formed in one end section of cylindrical section and with truncated cone shaped sections with contact angle in relation to raw material of spindle shaft continuously increasing |
| 02/19/2004 | DE10236281A1 Method for manufacturing spindle nuts for ball thread drives involves arranging externally profiled tool mandrel in hollow blank and exerting radial force from outside to reshape blank to form helical track |
| 02/12/2004 | US20040025557 Process for forming a threaded member |
| 02/10/2004 | US6688071 Concrete structure comprising anchor rods and anchor rod |
| 02/03/2004 | US6684674 Tread rolling head |
| 01/15/2004 | WO2004005732A1 Heat resistant drill screw |
| 01/15/2004 | US20040007034 Cold rolling machine |
| 01/08/2004 | US20040003639 High-strength stainless steel bolt and method of manufacturing the same |
| 01/08/2004 | DE10228505A1 Holzbauschraube und Verfahren zu ihrer Herstellung Wood construction screw and method for their preparation |
| 01/07/2004 | EP1377398A1 Process for forming a threaded member |
| 12/31/2003 | WO2004001236A1 Wood screw and method for producing the same |
| 12/31/2003 | CN2595489Y One step forming machine for steel bar peeling rib and rolling press straight screw |
| 12/23/2003 | US6666059 Method and device for rotating and machining bar material |
| 12/17/2003 | CN1461679A Man-power or electric and non-cutting threader for taper pipe |
| 12/11/2003 | WO2003102374A1 Threaded bar & rock bolts formed therefrom |
| 12/10/2003 | CN2590701Y Thread rolling head for helical rolling press |
| 12/04/2003 | WO2003099488A2 Automatic rolling machine with flat chasers |
| 10/29/2003 | CN2582780Y Tapered thread rolling machine used for pipe material processing |
| 10/29/2003 | CN1125699C Method for machining top arc of teeth for thread rolling die |
| 10/23/2003 | WO2003086719A1 Method for manufacturing a directionally dependent reflective surface |
| 10/08/2003 | EP1350967A2 Male screw part |
| 10/08/2003 | EP1350966A1 Fastener having multiple lobed thread |
| 10/02/2003 | US20030185649 Male screw part |
| 10/01/2003 | CN2576376Y Thread rolling machine |
| 09/24/2003 | EP1346783A2 Method for threading inlets formed by drawing, particularly for manufacturing elements of radiators and the like |
| 09/03/2003 | CN1439468A Self-locking screws and producing method thereof |
| 08/28/2003 | US20030159533 Method for producing a shaft and device containing one such a shaft |
| 08/20/2003 | CN1118359C Drill bit with debris removing slot |
| 08/13/2003 | EP1334293A1 Ball screw |
| 08/06/2003 | CN2564280Y Punching and threading machine |
| 08/06/2003 | CN2564279Y Shaper for drill tail screw |