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| Number | Title | Issue Date |
| 7111395 | Method for densifying teeth of a gear wheel A method and an apparatus are described for producing a gear wheel from a powder metal blank (1) which is sintered and pressed with an overmeasure in the flank and root region of the teeth and which in the region of the overmeasure is densified under plastic ... | 09/26/2006 |
| 7076875 | Method of manufacturing compound helical planet gears having different leads A method is provided for manufacturing a compound helically toothed planet gear for a planetary gear set wherein the individual gear elements of the compound planet gear have different leads. The method identifies and utilizes the several factors affecting gear timi... | 07/18/2006 |
| 7000444 | Forging method and apparatus A method of producing a bevel gear, particularly a bevel ring gear, the bevel gear comprising mounting surfaces. The method comprising the steps of flashless warm forging a blank, preferably an annular blank, in a forging die to produce the bevel gear with precision... | 02/21/2006 |
| 6981324 | Method of manufacturing net-shaped gears for a differential assembly A differential assembly for a motor vehicle includes a plurality of pinion gears in meshing engagement with a plurality of side gears. At least one of the pinion gears and side gears is formed from a heated tubular preform in a forging die. A method for manufacturin... | 01/03/2006 |
| 6935021 | Method for the plastic molding of the hub recess for fast running turbine component A method for plastic molding of a hub recess for a fast-running turbine component is provided. The plastic molding of the hub recess occurs by hydraulic expansion, by way of a hydraulic fluid introduced into the hub recess of the turbine component under high pressur... | 08/30/2005 |
| 6907764 | Methods and apparatus for manufacturing flanged articles Methods for manufacturing a flanged article (21) that comprises a central depressed body (27) and a peripheral flange (23) may include press forming a material (10) in order to form an intermediate flanged article (20) that compris... | 06/21/2005 |
| 6868606 | Method and apparatus for making a rotation-symmetrical gear member In a method of making a rotation-symmetrical gear member, an outer edge of a circular blank is shaped to form a concentric thickened area which extends in axial direction to thereby realize a ring structure. A remaining area of the circular blank is then shaped into... | 03/22/2005 |
| 6826945 | Method for producing a rack A technique for manufacturing a gear rack (5) for a rack-and-pinion steering gear for automobiles makes use of a blank (18) for the gear rack (5) having at least in the latter's toothed area a form deviating from a circular cylinder. Size and fo... | 12/07/2004 |
| 6711817 | Hypoid ring gear for differentials and method of producing the same The invention is intended to reduce the installation cost and running cost, minimize the production cost and increase the tooth surface strength of hypoid teeth. To this end, a hypoid ring gear for differential is produced by the steps of upset-forging a roun... | 03/30/2004 |
| 6682625 | Method and apparatus for manufacturing profiles and laminates A method for manufacturing profiles formed so as to have different cross-sectional shapes in the height direction, in which a long-sized hoop of workpiece is indexed, a plurality of types of component members having outer contours corresponding to the res... | 01/27/2004 |
| 6638390 | Gear production process A process for manufacturing polymer/metal disks in a single piece batch size comprises applying a bonding agent to a metallic hub, pressing a polymeric ring over the metallic hub to form a ring/hub assembly, and heating the ring/hub assembly to cause bond... | 10/28/2003 |
| 5878493 | Method of forming toothed wheels A method for forming a toothed wheel which comprises the steps of providing a circular sheet metal blank of uniform thickness, cold forming an outer peripheral portion thereof into a thickened rim of uniform generally rectangular cross-sectioned configura... | 03/09/1999 |
| 5774986 | Method and apparatus for cold-forming of toothed wheels from sheet metal A toothed wheel is cold formed from a circular piece or plate of sheet metal by cold-forming an annular outer section of the sheet metal into a preform, while the sheet metal is held in a rotary holding unit and rotated about its preform axis. While the s... | 07/07/1998 |
| 5722164 | Method for manufacturing gearing components with special gearing, especially synchromesh gearing The gearing component, in this case a synchronizer ring with synchromesh gearing for automobile gear boxes, is manufactured by cutting it out of a strip of material with a precision cutting machine, at the same time forming gearing out of radial and at le... | 03/03/1998 |
| 5718774 | Method of producing bevel gear A method of producing a bevel gear is provided. The method comprises the steps of forging, from a case hardened and heated blank, a rough shaped bevel gear intermediate product having a toothed portion, outer burrs at a larger diameter end thereof and bet... | 02/17/1998 |
| 5711187 | Gear wheels rolled from powder metal blanks and method of manufacture A gear wheel is formed from a pressed and sintered powder metal blank in which the metal powder comprises an admixture of iron powder and at least one alloying addition and the gear wheel is surface hardened by densifying at least the tooth root and flank... | 01/27/1998 |
| 5392517 | Method of making a ring gear A ring gear is formed from a blank taken from a hot extruded tube stock. The tube stock is extruded to predetermined dimensions substantially smaller than the finished ring gear blank. A toroidal blank is cut from the tube stock and measured to determine ... | 02/28/1995 |
| 4991421 | Method for extruding an elongated, lightweight rack An elongated, rod-like rack for use in an automotive-type steering gear assembly and like mechanisms, is formed of an elongated extruded tube divided lengthwise into a substantially solid rack portion and a substantially hollow, link portion. Transversely... | 02/12/1991 |
| 4856167 | Method for producing near net ring gear forgings A method is provided for the production of near net ring gear forgings (106) including the steps of forging ring roll preforms (102) of substantially toroidal shape, ring rolling the preforms into forging blank rings (104) having a general rectangular sha... | 08/15/1989 |
| 4856166 | Method for manufacturing a gear fit article and gear fit article produced thereby A method for manufacturing a novel gear fit article that includes metal plating the surface of an annular steel work is disclosed. The plating is made of copper to prevent nitriding of the underlying steel. The plated steel work is gear cut to form intern... | 08/15/1989 |
| 4761867 | Method for producing ring gears for heavy-duty drive axles A method for providing ring gears (14) for (12/14) is provided. The method comprises providing a near net ring gear forging (106) which is machined on other than the root and flank tooth surfaces (90), subjected to a carburizing heat treatment (92) and th... | 08/09/1988 |
| 4686864 | Flywheel starter gear and method of making A flywheel starter gear construction which includes a strip of gear stock surrounding a flywheel disc and friction welded to the disc in an annular weld area, the gear teeth on the gear stock being formed by moving the assembly through a pot broach, and t... | 08/18/1987 |
| 4561274 | Method of and apparatus for forging hollow blank member A method of and an apparatus for shaping a hollow blank member by a forging operation is provided. The interior of a hollow blank member is filled with a liquid pressure medium which is enclosed therein in sealed condition. An external pressure is applied... | 12/31/1985 |
| 4433568 | Precision closed-die forging method A disc-like or annular workpiece within a set of closed dies undergoes lateral flow in a first direction (e.g., radially outward or inward, depending upon the geometry of the die cavity) as the upper die is forced against the lower, with the workpiece bei... | 02/28/1984 |
| 4280264 | Method for fabricating large diameter gears, gear-blanks and the like A circular centrally-apertured precision torch-cut web disk plate is drivingly rotatably supported between two clamp plates; and the leading end of straight rim strip stock, of length requisite for the tooth bearing rim of the gear, is positioned adjacent... | 07/28/1981 |
| 4254540 | Stamped bevel gear A method of manufacturing gear forms comprising cold forming metal stock to produce a workpiece having a protruding hub portion with a central opening, impressing indentations in the hub portion by means of appropriate dies, boring and counterboring the r... | 03/10/1981 |
| 4253323 | Method for manufacturing high precision slugs A method is provided for the formation of high precision metal slugs by cold forming. A metal column starting material is subjected to a preforming step in which the starting material is cold forged with a pair of upper and lower metal dies provided with ... | 03/03/1981 |
| 4074583 | Composite epicyclic gear ring and method of manufacture An improved gear ring for epicyclic gear trains is formed from a plurality of concentric ring elements shrink fitted to each other, whereby increased flexibility is achieved without increasing stress levels in the ring. The ring elements may be separated ... | 02/21/1978 |
