| Patents for B21H 5 - Making gear wheels (1,111) |
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| 02/04/1993 | DE4125491A1 Schnecke mit angeformtem lagerzapfen, insbes. fuer eine scheibenwischanlage Screw with integral bearing cones, esp. For a disk-wipe system |
| 11/26/1992 | WO1992020474A2 Device and method for cold-forming grooves on the wall of a revolution part |
| 10/21/1992 | EP0509734A1 Method and apparatus forming a helical spline gear with a stopper on a rotary shaft |
| 10/13/1992 | US5154553 Apparatus for chamfering and deburring the end edges of a toothed production gear |
| 10/06/1992 | US5152061 Cold-forming of toothed wheels from sheet steel |
| 07/28/1992 | US5133204 Apparatus for producing sunken shapes on the outer circumference of rotationally symmetrical sheet-metal workpieces and a method for producing the same |
| 07/21/1992 | CA1305316C Method for producing ring gears for heavy duty drive axles |
| 07/08/1992 | EP0493792A1 Method of manufacturing drive plate |
| 06/17/1992 | DE4130927C1 Chaser gear for gear tooth deburring and edging - has part of its teeth with compression flanks, engaging angular edges of worked gear teeth |
| 06/16/1992 | CA1303389C2 Forming chamfered flange and splines in thin-wall member |
| 04/28/1992 | CA1299323C Snap ring forming and grooving |
| 04/09/1992 | WO1992005897A1 Gear wheels rolled from powder metal blanks |
| 03/17/1992 | CA1297326C Rack assembly for forming splines in thin-wall member |
| 01/02/1992 | EP0463200A1 Device for producing formed contours on the outside circumference of rotationally symmetrical workpieces made of sheet metal and method for using the same |
| 12/03/1991 | US5069575 Roll forming notches in a thin-wall power transmission member |
| 11/27/1991 | EP0457816A1 Device for manufacturing a profile on a rough pot |
| 10/17/1991 | DE4106966A1 Pulleys for toothed belt drives - are mfd. by axially moving core tool and profiled rollers |
| 10/08/1991 | CA1290172C Method for producing near net ring gear forgings |
| 06/13/1991 | DE3940323A1 Forming teeth on face of circular blank - involves pressing blank against toothed face of tool |
| 05/22/1991 | EP0427916A2 Process for the production of torsional damper |
| 05/17/1991 | CA2029439A1 Process for the manufacture of a torsional vibration damper |
| 03/26/1991 | US5001916 Method for the calibrated cross-section reduction of a workpiece rotating during such method. |
| 03/12/1991 | US4998853 Self-drilling blind rivet and method for making same |
| 02/28/1991 | DE3931599A1 Internal teeth prodn. in cut-shaped workpiece - by pressing circular blank against toothed tool by rollers |
| 01/09/1991 | CN1011122B Method for producing ring gears for heavy-duty drive axles |
| 12/19/1990 | CN1010838B Method for producing near net ring gear forgings |
| 12/06/1990 | DE3932823C1 Toothed transmission component mfr. - involves tool with external teeth forming inside teeth on workpiece |
| 11/27/1990 | US4972564 Apparatus for correcting surface imperfections on a surface of gear tooth |
| 09/18/1990 | US4956986 Roll forming notches in a thin-wall power transmission member |
| 08/23/1990 | WO1990009250A1 Device for manufacturing a profile on a rough pot |
| 08/16/1990 | DE3904241A1 Vorrichtung zum herstellen eines profils an einem vortopf Apparatus for producing a profile in a vortopf |
| 08/07/1990 | US4945783 Ring gear with roll formed teeth |
| 08/01/1990 | EP0380005A1 Self-drilling blind rivet and method of making same |
| 07/26/1990 | DE4001723A1 Self drilling blind rivet - is made from cylinder blank with main body and bore |
| 07/25/1990 | CA2007523A1 Self-drilling blind rivet and method for making same |
| 06/05/1990 | CA1270047A1 Method and apparatus for controlling the concentration of a chemical solution |
| 05/02/1990 | EP0366074A2 Apparatus for correcting surface imperfections on a surface of gear tooth |
| 05/01/1990 | US4920703 Method and apparatus for finishing a tooth surface of a gear |
| 04/24/1990 | US4918961 Machine for splining clutch hubs with close tolerance spline bellmouth and oil seal surface roundness |
| 04/11/1990 | EP0362502A2 Method for sizing the cross-section of a work piece by reduction during its rotation |
| 01/30/1990 | CA1264967A1 Poly v-pulley |
| 01/09/1990 | US4891962 Roll forming notches in a thin-wall power transmission member |
| 12/13/1989 | CN2049157U Planetary tooth-rolling milling machine |
| 12/05/1989 | US4884427 Method of producing helical internal gear |
| 11/30/1989 | DE3910003A1 Rack-type rolling tool |
| 11/28/1989 | US4882926 Roll forming notches in a thin-wall power transmission member |
| 10/10/1989 | US4872250 Method for fabricating a dished hollow body possessing a linear or helical inner toothing |
| 09/26/1989 | CA1260769A1 Forming chamfered flange and splines in thin-wall member |
| 08/15/1989 | US4856167 Method for producing near net ring gear forgings |
| 08/01/1989 | US4852375 Rack assembly for forming splines in thin-wall member |
| 07/18/1989 | CA1257455A2 Die for thread forming on a workpiece having different size diameters |
| 05/30/1989 | US4833905 Method for splining clutch hubs with close tolerance spline bellmouth and oil seal surface roundness |
| 04/11/1989 | US4819468 Roll forming notches in a thin-wall power transmission member |
| 03/23/1989 | DE3827175A1 Verfahren und vorrichtung zur endbearbeitung der zahnoberflaeche eines zahnrades Method and device for the finishings zahnoberflaeche a gear |
| 01/10/1989 | US4796462 Workpiece bite device in a rolling flat cutter |
| 01/10/1989 | US4796345 Method of fabricating a rim gear, such as a starter rim gear made of sheet metal |
| 12/28/1988 | CN88100946A Method for producing near net ring gear forgings |
| 12/27/1988 | US4793219 Method of manufacturing non-slip thread rolling dies |
| 11/29/1988 | US4787230 Rolling flat cutter and method of rolling thereby |
| 11/29/1988 | US4787229 Method of rolling a pipe by flat cutters |
| 10/25/1988 | US4779476 Thin-walled splined and flanged power transmission member |
| 10/13/1988 | DE3711927C1 Method for the production of metal hollow bodies with profiles running in the axial direction on their outer circumference, especially teeth, and an apparatus for carrying out the method |
| 08/24/1988 | CN88100761A Method for producing ring gears for heavy duty drive axles |
| 08/17/1988 | EP0278361A2 Method for producing ring gears for heavy duty drive axles |
| 08/17/1988 | EP0278298A2 Method for producing near net ring gear forgings |
| 08/09/1988 | US4761867 Method for producing ring gears for heavy-duty drive axles |
| 07/12/1988 | US4756182 Die for flanging and chamfering thin-walled members |
| 07/12/1988 | US4756179 Mandrell for flanging and splining thin-walled members |
| 06/21/1988 | CA1238213A1 Forming machine with multiple work stations |
| 05/19/1988 | WO1988003450A1 Method of producing rack-and-pinion steering arrangements with a variable gear ratio |
| 05/18/1988 | EP0267399A1 Method of producing rack-and-pinion steering arrangements with a variable gear ratio |
| 05/03/1988 | US4741191 Method for splining and flanging thin-walled members |
| 03/29/1988 | US4733798 Method and apparatus for controlling the concentration of a chemical solution |
| 03/16/1988 | EP0259508A1 Method and device for rolling work pieces of ductile material |
| 03/08/1988 | US4729233 Rack assembly for forming splines in thin-wall member |
| 03/08/1988 | US4729232 Machines for pressure forming surface configurations on a rotary workpiece |
| 03/01/1988 | CA1233321A1 Method and apparatus for burnishing splines and gears using synchronously rotated gears |
| 02/25/1988 | DE3715393A1 Method of manufacturing a hollow body having a straight or oblique internal toothing |
| 02/24/1988 | EP0256830A2 Machines for forming configurations on a rotary workpiece |
| 02/04/1988 | DE3712123A1 Fabricated gearwheel for vehicle starter |
| 01/05/1988 | US4716751 Non-slip thread rolling dies |
| 12/16/1987 | EP0248983A1 Method and apparatus for rolling profiles in cylindrical work pieces |
| 12/15/1987 | US4712408 Coarse pitch spline rolling |
| 11/24/1987 | US4708912 For highly stressed toothed gears |
| 11/10/1987 | US4705150 Method and machine for splining clutch hubs with close tolerance spline bellmouth and oil seal surface roundness |
| 10/06/1987 | US4697445 Poly-V pulley formed of sheet metal and method and apparatus for making same |
| 10/06/1987 | CA1227703A1 Method and machine for splining clutch hubs with close tolerance spline bellmouth and oil seal surface roundness |
| 09/01/1987 | US4689980 Method for snap ring forming and grooving |
| 09/01/1987 | CA1226174A1 Tooth forming tool with toothless clamping section for splining tubular elements |
| 08/06/1987 | DE3632260A1 Method and apparatus for the production of helical toothing by cold forming |
| 08/04/1987 | US4683743 Apparatus and method for roll sizing diameters |
| 07/07/1987 | US4677836 Apparatus for flanging and splining a thin-walled power transmission member |
| 06/09/1987 | US4671092 Method and apparatus for hot rolling of bevel gears |
| 06/03/1987 | EP0207941A4 Rotary forming machine having tie bar connection. |
| 05/26/1987 | CA1222155A1 Rotary forming machine having tie bar connection |
| 05/06/1987 | EP0220318A1 Downhole screw motor |
| 04/22/1987 | EP0219019A2 Apparatus for plastic cross-rolling porous sintered metallic work pieces presenting a rotational symmetry |
| 04/21/1987 | US4658619 Machine for splining clutch hubs |
| 04/07/1987 | CA1220060A1 Apparatus and method for roll sizing diameters |
| 03/24/1987 | CA1219471A1 Sintered metal body with at least one toothing |