Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21H - Making particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls › B21H 3 - Making helical bodies or bodies having parts of helical shape
Patents for B21H 3 - Making helical bodies or bodies having parts of helical shape (2,057)
12/2010
12/01/2010CN201659233U External screw thread machining device of two-end screw thread part
12/01/2010CN201659232U Circle milling machine
12/01/2010CN101559447B Thin wall pipe connector and processing method thereof
11/2010
11/24/2010CN201644685U Thread twisting machine
11/24/2010CN201644684U Thread rolling machine
11/24/2010CN201644683U Thread rubbing device
11/17/2010CN101885029A Feeding device of roll machine
11/03/2010CN201618825U Core print for machining seamless high-efficiency tube with internal thread
10/2010
10/26/2010CA2446242C Self-tapping screw, blank, method and dies for making the same and method for joining thin workpieces
10/14/2010WO2009120153A9 Method for working a thread on deformed reinforcing bar
10/13/2010CN201603830U 一种能感测搓牙压力的螺丝搓牙机 Roll one kind can sense the pressure of the screw thread rolling machines
10/13/2010CN101856707A Method for manufacturing composite screws
10/07/2010WO2010112436A1 Threaded fasteners made of a polymer material
10/07/2010WO2010112435A1 Fasteners made of a polymer material
10/07/2010DE202010009158U1 Gewindewalzvorrichtung für Fahrradspeichen Thread rolling apparatus for bicycle spokes
09/2010
09/29/2010CN201592227U Composite thread-rolling plate
09/16/2010WO2010102365A1 Fastening screw for prosthetic components in implantodontics
09/15/2010CN201579353U Molded teeth machine
09/15/2010CN101831990A Rebar rounding rolling straight thread connector and processing equipment thereof
09/15/2010CN101829747A Thread rolling die
09/15/2010CN101829746A External thread processor for two-end screw
09/08/2010CN101823084A Auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic vibration exciter
09/08/2010CN101208527B Hollow bolt comprising a longitudinal bore
09/01/2010CN101821516A Screw head recess drive and corresponding driver tool and recess punch
08/2010
08/26/2010US20100216560 Method for manufacturing a thread-forming screw
08/25/2010CN201558923U Discharger for cladding type reverse disc internal threading machine
08/25/2010CN201558922U Thread rolling wheel for machining high-intensity and high-precision screw rod
08/19/2010WO2010093330A1 Torque retention screw thread fastener and corresponding thread roll die
08/19/2010WO2010093329A1 Self-tapping thread forming screw and corresponding thread roll die
08/19/2010US20100211118 Bone screw and method of manufacturing same
08/19/2010DE202010000440U1 Gewinderollmaschine Thread rolling machine
08/18/2010CN201552267U Screw rolling machine head
08/05/2010WO2010086538A1 Screw or nut with a thread a pitch of which varies and tool to produce said screw or nut
08/04/2010CN201537669U Thread rolling machine
07/2010
07/28/2010EP2210003A1 Method for producing a threaded insert with an internal and external thread, and threaded insert
07/28/2010CN201534203U Screw rod hot rolling forming machine
07/28/2010CN101410202B Automatic releasing-type rolling head for forming tapered thread on pipe
07/27/2010US7762752 Bolt and thread rolling die and the manufacture of the bolt
07/22/2010WO2010082403A1 Titanium alloy screw formed by rolling
07/22/2010DE10335628B4 Rollwalze für eine Kugelspindel Rolling die for a ball screw
07/21/2010CN101780629A Production process of special shaped screw bolt
07/21/2010CN101780627A Manufacturing method of valve rod of high temperature and high pressure cut-off valve
07/14/2010CN201524758U Screw forming machine with sensing die punching pressure
07/08/2010US20100173716 Formed product and method for production thereof
07/07/2010CN101767169A Manufacturing method of magnesium screw and magnesium screw component thereof
06/2010
06/16/2010CN101743407A Thread forming screw thread and corresponding thread roll die
06/09/2010CN101722256A Screw rod hot rolling molding process and equipment thereof
06/02/2010CN201493418U Rolling former
05/2010
05/26/2010CN201482889U Self-tapping screw thread tailing flat-cutting thread rolling die
05/12/2010CN201455156U Flow guide hole screw plate for thread rolling machine
05/05/2010CN201446321U Die
04/2010
04/29/2010US20100104396 Thread, fastening system, pipe fitting and method for manufacturing thread
04/21/2010CN201439108U Thread rolling shaft for thread rolling machine
04/15/2010DE102008051220A1 Pipe has cylindrical pipe end, which is provided with outer thread, where sleeve is arranged inside in pipe end for supporting pipe end by manufacturing outer thread
04/14/2010EP2173504A1 Profile-rolling machine
03/2010
03/30/2010CA2453460C Method of forming a threaded fastener with dual reinforcing leads
03/24/2010CN100595000C Screw rolling machine for inner thread
03/18/2010WO2009151223A3 Screw and a method for manufacturing the same
03/10/2010EP2160518A1 Thread forming screw thread and corresponding thread roll die
03/04/2010WO2010022552A1 Method and device for forming thread on reinforcing rod end
03/04/2010US20100054893 Hollow bolt comprising a longitudinal bore
03/02/2010US7670091 Bolt and thread rolling die and the manufacture of the bolt
02/2010
02/25/2010US20100048309 Method and device for manufacturing fastenings or fasteners with radial outer contours, especially screws or threaded bolts
02/24/2010EP2156062A1 Screw head recess drive and corresponding driver tool and recess punch
02/24/2010CN201410536Y Novel rib peeling device of reinforced straight thread rolling machine
02/17/2010CN201405014Y Manufacture tool of wrench shear type high intensity bolt
02/17/2010CN101652201A Multi-thread rolling die manufacturing method, multi-thread rolling die, and multi-thread bolt manufacturing method using the same
02/04/2010DE202009011812U1 Gewindewalzvorrichtung für Fahrradspeichen Thread rolling apparatus for bicycle spokes
01/2010
01/26/2010US7651401 Self-attaching female fastener elements and method of forming same
01/21/2010WO2010006873A1 Method and apparatus for producing a circular cylindrical body comprising a workable mass and having internal helical recesses
01/21/2010US20100014940 Bolt, the axial force of which is to be determined by a supersonic wave, and a method for the manufacturing thereof
01/12/2010US7645106 Cone-head thrust screw
01/07/2010US20100003105 Method for producing a locking ring bolt and locking ring bolt
12/2009
12/31/2009US20090320551 Thread rolling die
12/30/2009WO2009155884A1 A lead-in type interference fit pipeline external thread
12/30/2009CN201371212Y Device for rolling and processing screw
12/23/2009EP2135692A1 Rolling machine with a machined-workpiece unloading device
12/17/2009WO2009151223A2 Screw and a method for manufacturing the same
12/16/2009CN201361668Y Ring-type axial-fed thread rolling die for double-circular-arc progressive thread form
12/10/2009US20090301246 Screw device and method of manufacturing the same
12/09/2009CN101596571A Thread forming template structure
12/09/2009CN101596570A Thread rolling machine device capable of automatically tapping two groups of bolts synchronously
11/2009
11/26/2009US20090290954 Threaded Fastener with Retainer and Method of Making Such Fastener
11/19/2009US20090286608 Method of forming a high performance thread forming screw
11/18/2009CN201346653Y Special screw dental plate set for hard disc
11/17/2009US7618327 Fastener with friction engageable surface
10/2009
10/22/2009WO2009127178A1 Device and non-cutting shaping method for introducing an outside profile into a workpiece
10/22/2009US20090264210 Titanium alloy fasteners and the related fabricating method
10/22/2009US20090263206 Method and Structure for Preventing Screw From Loosening and Method of Manufacturing Male Screw
10/22/2009DE102008019437A1 Vorrichtung und spanloses Umformungsverfahren zum Einbringen eines Außenprofils in ein Werkstück Apparatus and chipless forming method for introducing an outer profile in a workpiece
10/21/2009CN101559466A Design method of corrugating mould of copper pipe with fine pitch and deep helical corrugation
10/21/2009CN101559447A Thin wall pipe connector and processing method thereof
10/21/2009CN100552241C Magnesium-base alloy screw and method of manufacturing the same
10/08/2009US20090252572 Screw, bolt or locking ring bolt
10/08/2009DE102007062437A1 Rolling tool for cold-rolling profiled roller of actuation device, has cylindrical/cone shaped ring passage arranged as supporting section between threaded profiles and profile sections
10/07/2009CN101549383A Slide thread rolling splint
10/01/2009WO2009120153A1 Method for working a thread on deformed reinforcing bar
10/01/2009US20090247310 Method and tooling for headed pilot pointed bolts
09/2009
09/09/2009CN201304462Y Micro-screw thread rolling machine
09/09/2009CN201304461Y A track base lifting structure of threading machine
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