| Patents for B21H 5 - Making gear wheels (1,111) |
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| 02/17/2005 | DE10032578B4 Getriebeschnecke und Verfahren zum Herstellen einer Getriebeschnecke Worm gear and method for producing a worm gear |
| 02/03/2005 | WO2005009646A1 Method of manufacturing part with internal gear and rolling machine |
| 02/02/2005 | EP1501646A1 Crown gear |
| 01/27/2005 | CA2533051A1 Method and device for machining edge regions of cylindrical hollow bodies |
| 12/28/2004 | CA2263677C Method of forming toothed wheels and product formed thereby |
| 12/28/2004 | CA2086043C Method of and apparatus for cold forming toothed wheels from sheet metal |
| 12/23/2004 | WO2004110669A1 Form rolling method for worm and form rolling die for the method |
| 12/15/2004 | EP1486269A1 Method of forming internal gear, and internal gear |
| 11/30/2004 | CA2142825C Apparatus and method for precision gear finishing by controlled deformation |
| 11/25/2004 | WO2004101195A1 A device for forming tooth form of sprocket gear for power transmission apparatus of cahinless bicycle |
| 11/18/2004 | DE10317506A1 Manufacturing method for hollow workpiece, by shifting circular blank and mandrel along workpiece feed direction through the coordinated rotation of rollers along the workpiece feed direction |
| 11/18/2004 | DE10311875A1 Cylindrical wheel rim for use in automobile manufacture, has parallel grooves formed around circumference of cylinder through casting or forging |
| 11/11/2004 | US20040221453 Gear wheels roll formed from powder metal blanks |
| 11/10/2004 | CN1544181A Composite fabrication process for tooth blank of automobile gear shifting box combining tooth |
| 11/09/2004 | CA2312427C Point contact densification of sintered metal powder |
| 11/04/2004 | US20040219051 Net shaping gear teeth for high performance automotive power transmission; heating above critical temperature and quenching faster than critical cooling rate; rolling between opposed dies having profiled surfaces for densification, plastic deformation and strengthening; cooling to harden |
| 11/02/2004 | US6810576 Method for producing a shaft and a device containing a shaft of this type |
| 10/27/2004 | EP1438153A4 Apparatus and method for forming powder metal gears |
| 10/14/2004 | DE202004012067U1 Cold metal rolling tool for fabrication of symmetrical metal work piece with straight or angled teeth, spiral teeth with grooves, threads or knurled surfaces |
| 09/30/2004 | WO2004082872A2 Method and apparatus for strengthening of powder metal gears by ausforming |
| 09/30/2004 | DE20122205U1 Kaltwalzmaschine Cold rolling machine |
| 09/29/2004 | CN1168556C Continuous local plastic precision forming device of automobile half axls gear and its process |
| 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 |
| 09/09/2004 | US20040173000 Cold forming tool, machine and method |
| 08/24/2004 | US6779270 Full form roll finishing technique |
| 08/18/2004 | CN1162229C Method instead f cold rolling for making spline or screw template |
| 08/12/2004 | WO2004067205A1 Method of forming a sprocket |
| 08/05/2004 | DE19650343B4 Verfahren zur Herstellung eines zylindrischen, dünnwandigen Hohlkörpers mit Profil A method for producing a cylindrical, thin-walled hollow body with a profile |
| 08/04/2004 | EP1442808A2 Flat rolling die |
| 07/28/2004 | EP1439925A1 Cold forming tool, machine and method |
| 07/22/2004 | US20040139774 Method of forming a sprocket |
| 07/21/2004 | EP1438153A1 Apparatus and method for forming powder metal gears |
| 07/08/2004 | DE10259665A1 Contra-motion twin-tray roll forming machine tool press has integral hydrostatic spindle drive or electrical linear motor drive |
| 06/23/2004 | EP1429878A1 Method for producing a shaft comprising a sleeve, and device containing one such shaft |
| 06/22/2004 | US6752691 Device for smoothing gear wheels |
| 06/16/2004 | EP1428597A1 Method of rolling worm gear and the worm gear |
| 06/16/2004 | EP0976950B1 Combination of a sprocket and a chain |
| 05/04/2004 | US6730263 Process to manufacture a sintered part with a subsequent shaping of the green compact |
| 05/04/2004 | US6729171 Cold forming by rolling of parts made of press sintered material |
| 04/15/2004 | US20040070127 Torsion bar for a seat belt retractor |
| 04/14/2004 | EP1133374B1 Method for producing a sintered part with a subsequent shaping of the green compact |
| 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 |
| 03/30/2004 | US6711817 Hypoid ring gear for differentials and method of producing the same |
| 03/25/2004 | DE10209896B4 Verfahren und Vorrichtung zur Herstellung eines mit einer Verzahnung versehenen, rotationssymmetrischen Getriebeteiles Method and apparatus for producing a provided with a toothing, a rotationally symmetrical gear part |
| 03/18/2004 | WO2004022259A1 Method for producing tooth profiles, according to a deformation technique, on the peripheral surfaces of toothed wheel blanks |
| 03/18/2004 | WO2003099488A3 Automatic rolling machine with flat chasers |
| 02/26/2004 | DE4321779B4 Verfahren zur Herstellung eines Starterkranz-Zahnrads aus Blech und nach dem Verfahren hergestelltes Starterkranz-Zahnrad Process for the preparation of a starter ring gear-from sheet metal and produced by the process starter ring gear |
| 02/24/2004 | US6694791 Method of spin forming and part made thereof |
| 02/19/2004 | DE20317081U1 Stangenartiges Verzahnungswerkzeug Rod-like gear cutting tool |
| 02/17/2004 | US6691542 Method and apparatus for manufacturing a cylindrical member, and cylindrical member having splines |
| 02/12/2004 | DE10066177A1 Werkzeug und Verfahren zum Querwalzen von Verzahnungen sowie Verfahren zur Herstellung eines Walzwerkzeuges Tool and method for transversely rolling of gears as well as methods for the preparation of a rolling die |
| 01/29/2004 | US20040016123 Method and device for producing a toothed wheel |
| 01/22/2004 | US20040010914 Method for providing assemblies with gearings and profiles |
| 01/20/2004 | US6678929 Spiral shear gear burnishing dies |
| 01/15/2004 | US20040007034 Cold rolling machine |
| 12/31/2003 | CN1464810A Method for providing assemblies with gearings and profiles |
| 12/24/2003 | CN1463210A Method of rolling worm gear and worm gear |
| 12/11/2003 | US20030226386 Cold forming by rolling of parts made of press sintered material |
| 12/11/2003 | US20030226250 Method of producing sliding sleeves for gearshift mechanisms |
| 12/10/2003 | EP1369193A1 Cold-forming by rolling pressed and sintered workpieces |
| 12/04/2003 | WO2003099489A1 Insertion device particularly for automatic rolling machines |
| 12/04/2003 | WO2003099488A2 Automatic rolling machine with flat chasers |
| 11/20/2003 | WO2003095128A1 Crown gear |
| 10/29/2003 | EP1356891A1 Method of manufacturing sliding sleeves for gear boxes |
| 10/22/2003 | CN1124909C Process for fabrication of rack shaft and fabrication machine therefor |
| 10/21/2003 | US6634078 Method of manufacturing a splined member for use in a slip joint |
| 09/11/2003 | US20030167813 Method of rolling worm gear and the worm gear |
| 09/10/2003 | EP1341625A1 Method for roller spinning and a corresponding roller spinning device |
| 09/10/2003 | CN1440845A Machining process of speed variator-synchronizer binding annulus |
| 08/28/2003 | WO2003070397A1 Method of forming internal gear, and internal gear |
| 08/28/2003 | US20030159533 Method for producing a shaft and device containing one such a shaft |
| 08/27/2003 | EP1337358A1 Method and device for producing a toothed wheel |
| 07/30/2003 | EP1163064A4 Apparatus and method for roll forming gears |
| 07/29/2003 | US6598453 Tooth rolling flat dies and method for forming teeth |
| 07/02/2003 | EP1322445A1 Method for providing assemblies with gearings and profiles |
| 06/03/2003 | US6571475 Method of chamfering and deburring gear teeth, device implementing such a method, and relative tool |
| 05/22/2003 | US20030093901 Method and apparatus for making a rotation-symmetrical gear member |
| 05/21/2003 | CN1108888C Rachet and its making method, and wrench using same |
| 05/14/2003 | CN1416975A Rolling method and equipment |
| 04/23/2003 | EP1303368A1 Method for producing a shaft and device containing one such shaft |
| 04/16/2003 | EP1302274A2 Method of manufacturing a composite part |
| 04/03/2003 | WO2003026818A1 Apparatus and method for forming powder metal gears |
| 04/03/2003 | WO2003026814A1 Method for producing a shaft comprising a sleeve, and device containing one such shaft |
| 04/03/2003 | CA2461119A1 Apparatus and method for forming powder metal gears |
| 03/21/2003 | WO2002024397A1 Method for providing assemblies with gearings and profiles |
| 03/21/2003 | CA2423131A1 Method for providing assemblies with gearings and profiles |
| 03/19/2003 | EP1293275A2 Gear burnishing dies |
| 03/13/2003 | DE10160038C1 Rotary-symmetrical component manufacturing process, for making gears, involves reducing thickness of disk-shaped hub region, displacing material to increase external diameter |
| 03/11/2003 | US6530253 Method for producing cylindrical member having spline grooves, and cylindrical member having spline grooves |
| 03/06/2003 | US20030041429 Spiral shear gear burnishing dies |
| 03/05/2003 | EP1286794A1 Cold rolling machine |
| 02/26/2003 | EP1042091B1 Point contact densification of sintered metal powder |
| 02/20/2003 | WO2003013758A1 Cold forming tool, machine and method |
| 02/11/2003 | US6517772 Cutting and densifying of the gear teeth |
| 01/30/2003 | US20030019451 Valve timing control system and method of producing valve timing control system |
| 01/22/2003 | EP1124658A4 Vertically movable forming racks |
| 01/22/2003 | CN2531899Y Continuous lcoal plasticity precise moulding device for car axle shaft gear |
| 01/21/2003 | US6508094 Internally-toothed member, and method and apparatus for molding same |
| 01/15/2003 | CN1390657A Method instead f cold rolling for making spline or screw template |