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| Number | Title | Issue Date |
| 7861411 | Composite gear and method of forming same A composite gear and method of making same. In one embodiment the gear includes a body portion having a plurality of teeth. The gear is formed by placing it in a suitable tool such that a compressive stress is exerted on the teeth adjacent the root portion of each t... | 01/04/2011 |
| 7207231 | Rack gear and method of making same A rack (20) for a rack and pinion steering system (10) includes a fully dense powder metal rack tooth section (50) joined, by sintering, to a hollow rack tube (30). The rack tooth section (50) is formed by pressing powder metal ( | 04/24/2007 |
| 7163754 | Sprocket wheel having a metallurgically bonded coating and method for producing same A sprocket has a base steel member including an outer toothed profile surface, at least a portion of the outer toothed profile surface having a wear and corrosion resistant coating disposed thereon; the coating comprising an alloy, the alloy comprising at least 60 w... | 01/16/2007 |
| 7155824 | Method of manufacturing an automotive differential having an input pinion A method for fabricating an input pinion for an automotive differential that includes: providing a shaft; forging a pinion with a plurality of teeth such that each tooth is formed to at least a near-net size, forming a hole in the pinion, pressing an end of the shaf... | 01/02/2007 |
| 7117598 | Net-shaped gear and manufacturing method for forming net-shaped gear employing insert and preform 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 tubular insert and a tubular preform forged together in a forging ... | 10/10/2006 |
| 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 |
| 6948245 | Gear and method of making the same In order that a worm 1 is rotated, a clearance (a region constituting a clearance portion between bearings and a worm gear) is formed (FIGS. 4(1) to (3)) in an upper surface of a base plate 3. A mold 12 for forming a lower h... | 09/27/2005 |
| 6874231 | Method of manufacturing a rigid internal gear of a wave gear device A rigid internal gear 2 of the wave gear device is composed by integrating a tooth-forming ring 12 formed with internal teeth, and a main gear ring 11 into a single body. The tooth-forming ring 12 is manufactured from a ferrous or copper ... | 04/05/2005 |
| 6670048 | Sintered sprocket A sintered sprocket is provided in which surface pressure resistance can be improved without using a forging processing. An Fe-based sintered alloy which contains C at 0.2 to 0.5% by weight, Mo at 0.2 to 1.0% by weight, and Ni at 0.2 to 1.0% by weight, an... | 12/30/2003 |
| 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 |
| 6561945 | Laminated carrier assembly A laminated carrier comprises a first end plate, a second end plate, and a connection joining the first and second end plates together such that windows are formed therebetween for locating planetary gears. At least one of the first and second end plates ... | 05/13/2003 |
| 6557663 | Electric power steering apparatus An electric power steering apparatus including a reduction mechanism 5 for transmitting an output of a steering assist motor 1 to a steering mechanism through a worm 3 and a worm wheel 4, in which the worm wheel 4 is formed by a thermosetting synthetic re... | 05/06/2003 |
| 6478016 | Gear driven supercharger having noise reducing impeller shaft A centrifugal supercharger includes a gear-type transmission for drivingly connecting the impeller to the engine. The transmission includes an impeller shaft supporting the impeller and being fixed relative to one of the gears of the transmission. The pre... | 11/12/2002 |
| 6343418 | Spinning reel face gear manufacturing method A spinning reel face gear is manufactured by a method of molding tooth-ring bearing, obverse-facing gear teeth onto a separately formed gear disk after the gear disk is made. The gear disk is specially configured with circumferentially spaced peripheral i... | 02/05/2002 |
| 6330836 | Steel for gear drive plate gear and method for producing the drive plate gear A steel for a gear which is formed on a drive plate gear includes; C: 0.32 to 0.38%, Si: 0.1% or less, Mn: 0.60 to 0.90%, P: 0.03% or less, and S: 0.035% or less.... | 12/18/2001 |
| 6095008 | Face gear for spinning reel A spinning reel master gear 11 (face gear) is a gear provided on a handle shaft 10 of a spinning reel, and comprises a circular plate 11a, and a tooth ring 11b manufactured of zinc alloy that is formed by a post-molded insert process on the perimeter of t... | 08/01/2000 |
| 6054785 | Compact miniature motor A compact miniature motor includes a DC motor, a worm gear, a pinion transfer gear, at least one cluster gear, an output gear, and an output shaft. A socket may be used to accept the output shaft. The gears form a gear train that wraps tightly around the ... | 04/25/2000 |
| 6023990 | Bimetallic gear rim Disclosed is multi-segmented fabricated gear rim having two distinct steel layers, an inner layer, and an outer layer from which gear teeth are cut. The inner and outer layers are molecularly bonded to each other, with the inner layer being a high weldabi... | 02/15/2000 |
| 6014808 | Method of making a composite gear A composite gear includes one or more metal stamped plates, and two thermoplastic layers disposed on opposite sides of the plates. Apertures are provided in the stamped metal plates so that the molten thermoplastic material may flow through the apertures ... | 01/18/2000 |
| 6014807 | Method of manufacturing a double-structure synchronizer ring This invention relates to a double-synchronizer ring and its manufacturing method. More particularly, this invention relates further to a novel type of the double-structure synchronizer ring and its manufacturing method using raw material powder which is ... | 01/18/2000 |
| 6012350 | Internal gear The internal gear is a bottomed cylindrical component, which has the boss portion fitted over the outer circumferential surface of the shaft, the disk-shaped flange portion extending radially outwardly from the boss portion, and the cylindrical gear body ... | 01/11/2000 |
| 5860882 | Process for manufacturing phased sprocket assemblies by capacitor discharge welding A process for manufacturing multi-tiered and/or phased sprocket assemblies using capacitor discharge welding is provided.... | 01/19/1999 |
| 5852951 | Composite gear and method of making same A composite gear includes one or more metal stamped plates, and two thermoplastic layers disposed on opposite sides of the plates. Apertures are provided in the stamped metal plates so that the molten thermoplastic material may flow through the apertures ... | 12/29/1998 |
| 5722295 | Injection-molded gear for engine and manufacturing method therefor An injection-molded gear for an utility engine has a high reliability, tenacity, and accuracy, capable of being manufactured at low cost without requiring cutting, and ensuring a substantial reduction in noise. An inner part of a cam crankshaft gear is fo... | 03/03/1998 |
| 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 |
| 5497548 | Method of making rings for gears having internal or external toothing To reduce the mass of internally or externally toothed gears, a thin metal ring having internal or external toothing is made and bonded to a ring of fibrous composite material. Furthermore, to make rings for gears having internal or external toothing, fab... | 03/12/1996 |
| 5492264 | Multi-metal composite gear/shaft The invention is directed to a method and a product produced by the method where in there is created a multi-metal composite object that takes on the configuration of a shaft which would include in combination an outer annular element having an outer cyli... | 02/20/1996 |
| 5452622 | Stress dissipation gear A gear is comprised of a central radial hub, a radial gear-toothed rim and a stress dissipating structure.... | 09/26/1995 |
| 5404060 | Miniature motor with worm reduction gear A miniature motor with worm reduction gear outputting the revolution of a miniature motor via a worm reduction gear consisting of a worm and a worm wheel, in which the tooth surface of the worm is roughened into a stain finish, and then subjected to a sur... | 04/04/1995 |
| 5390414 | Gear making process Method of manufacturing a helical gear allowing strategic placement of a hardenable wear-resistant and high strength layer at predetermined locations on the gear. The method includes the steps of forming a gear core preform having the general shape of the... | 02/21/1995 |
| 5310432 | Toothed wheel for use in automobiles and its manufacturing method A toothed wheel for use in automobiles and a method for its manufacture are disclosed. The toothed gear is of a dish-shaped disk having a thickened peripheral edge portion in an outer and/or inner side of which gear teeth are shaped, at least the surface ... | 05/10/1994 |
| 5307705 | Stress dissipation gear and method of making same A gear is comprised of a central radial hub with a web radially extending therefrom and an independent radial gear-toothed rim, both of which are radially coupled by a stress dissipating resilient member attached thereto and being located in a plane paral... | 05/03/1994 |
| 4949456 | Method of making ring gear and ring gear therefrom An improved method is provided for finish machining forged and/or rough-cut teeth (8) of a ring gear (40) by which a rotary tool such as a rotary carbide milling tool (24) is rotated about a rotational axis "r" that projectionally intersects a bottom surf... | 08/21/1990 |
| 4768281 | Clutch discs for a fluid friction clutch and process for making same Lamellar clutch discs consisting of sheet steel and arranged in an enclosed housing filled with a viscous liquid medium for a fluid friction clutch are described. To achieve a torque transmission behavior of the clutch that will remain constant over long ... | 09/06/1988 |
| 4425815 | Wormwheels A wormwheel (1) has teeth (2) over at least a portion of its periphery. The teeth (2) are shaped such that the pitch diameter (5) is greater at one face (3) of the wormwheel than the other and does not increase along the path of the tooth from said one fa... | 01/17/1984 |
| 4237175 | Carbon-filament reinforced gear A carbon-filament reinforced gear material of laminated structure has layers of carbon filaments. The gear material includes a plurality of circular fabrics each having warps and wefts composed of a plurality of carbon filaments. The circular fabrics are ... | 12/02/1980 |
| 4154628 | Quench hardening of gears A method of quench hardening a gear having a gear rim, a hub, and two rim carrying gear disk includes carburizing the gear and quenching it subsequently in a saline bath, and is improved by releasably covering the perforated disks with perforated suppleme... | 05/15/1979 |
| 4111031 | Powder metal crown gear forming process An improved method is disclosed for making spur gears having teeth with axially crowned working faces. A sintered powdered metal compact is formed in the shape of the desired gear, but slightly oversized and preferably with gear teeth having working faces... | 09/05/1978 |
| 4078445 | Composite sprocket or the like An improved chain drive sprocket or the like in the form of a sprocket member. The composite sprocket member includes a metallic hub portion having T-shaped lands and T-shaped grooves formed on the outer periphery thereof coaxial with the axis of rotation... | 03/14/1978 |
| 3999445 | Pinion gear A high-precision pinion gear comprises a core formed of a plurality of stampings bonded together in axial alignment and having a plurality of relatively low precision teeth formed thereon. A thin plastic layer bonded to the circumference of the core provi... | 12/28/1976 |
