Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7810238 | Optimum number of teeth setting method for helical gear pair and helical gear pair manufactured by this method In optimum number of teeth setting method for a helical gear pair and the helical gear pair manufactured on the basis of the set optimum number of teeth of each helical gear of the helical gear pair, a sound pressure level of a gear sound is compared with the sound ... | 10/12/2010 |
| 7621047 | Transmission shift mechanism having insert molded crank arm A transmission shift mechanism for use with a vehicle transmission. The transmission shift mechanism includes a user-operated selector and a sub-assembly operably disposed between said user-operated selector and the vehicle transmission. The sub-assembly includes a ... | 11/24/2009 |
| 7500310 | Method of making a component part of a reclining device In making a component part of a reclining device that is used to adjust an inclination of a seat back with respect to a seat cushion, after the component part has been prepared, a predetermined portion of the component part is selectively heated up to a temperature ... | 03/10/2009 |
| 7364803 | High density dual helical gear and method for manufacture thereof The present invention relates to a low cost technique for manufacturing dual helical gears, such as herringbone gears, from powder metals. The dual helical gears made by this technique are of high density (greater than 92% of theoretical density) and offer superior ... | 04/29/2008 |
| 7329203 | Planet carrier for a gearbox A planet carrier (2) for a gearbox, especially an automatic or power shift gearbox, is provided, including at least one planet gear (4) which is connected to a sun gear and a rotor wheel. The planet carrier is embodied in two parts and is made in two b... | 02/12/2008 |
| 7284634 | Electric power steering apparatus An electric power steering apparatus comprises a rotary shaft member connected to a steering wheel, an elongate member, a rack-and-pinion mechanism, a ball screw mechanism constructed of a screw member, a nut member and a multiplicity of balls interposed between the... | 10/23/2007 |
| 7258645 | Axle assembly with side gears having dual shaft retention features The drivetrain with multiple differentials includes a common side gear. The side gear has a cylindrical body with a central bore. Receiving members are on the bore to receive a shaft. An annular member is on the body with the bore extending through the annular membe... | 08/21/2007 |
| 7252066 | Integrated drive sprocket and gear for balance shaft An idler shaft assembly for an internal combustion engine provides significant cost savings eliminates processing and assembly steps, and provides accurate orientation of components. The idler shaft assembly includes a shaft adapted for rotation about a first axis. ... | 08/07/2007 |
| 7246439 | Process for mechanically forming undercuts on sintered shaped parts based on iron A relatively economical process allows producing sintered shaped parts, such as sliding sleeves in motor vehicle transmissions. Open-pored undercut surfaces are formed at an internal toothing by hypocycloid milling of the part prior to its final hardening. ... | 07/24/2007 |
| 7144348 | Web unit A web unit for planet gear sets for the mounting of planet gears including a first web element and a second web element, which are tightly connected and can be tensioned in axial direction by transmission or connecting elements progressing in axial direction and des... | 12/05/2006 |
| 7137312 | Gear wheels roll formed from powder metal blanks A method is disclosed for the manufacture of gear wheels having two axially adjacent gears (4,6) thereon. A blank is prepared with the two gears crudely formed thereon by compressing and sintering a shaped mass of substantially metal powder. The blank is then... | 11/21/2006 |
| 7086980 | Combination of drive power transmission device and differential gear and manufacturing method therefor Disclosed are a combination of a drive power transmission device and a differential gear, which combination is decreased in the number of parts, increased in rigidity and reduced in weight as well as in manufacturing cost, and a method of manufacturing the combinati... | 08/08/2006 |
| 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 |
| 7044876 | Bicycle sprocket having lateral protrusions for use in a multiple sprocket assembly A sprocket is adapted to be mounted to a sprocket support that rotates around an axle. The sprocket comprises a sprocket body having a side surface and an inner peripheral surface defining a sprocket-mounting opening, wherein at least one portion of the inner periph... | 05/16/2006 |
| 6988479 | Integrated drive sprocket and gear for balance shaft An idler shaft assembly for an internal combustion engine provides significant cost savings eliminates processing and assembly steps, and provides accurate orientation of components. The idler shaft assembly includes a shaft adapted for rotation about a first axis. ... | 01/24/2006 |
| 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 |
| 6918181 | Gear tooth topological modification for reducing noise and vibration in transmission systems A method for improving acoustic and vibrational properties of gears includes determining the transmission errors of intermeshing gears due to stiffness variations in the gear teeth, performing Gear Tooth Topological (GTT) modifications to compensate for the errors, ... | 07/19/2005 |
| 6905011 | Transmission gear with dog clutch gear and method for manufacturing the same A transmission gear with a dog clutch gear in which the dog clutch gear has clutch teeth formed on an outer circumferential surface of a ring part and tapered inversely so that the tooth thickness of each tooth decreases gradually from a chamfer portion at a tip end... | 06/14/2005 |
| 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 |
| 6863636 | Pinion carrier for planetary gear train and method of making same The method of producing a pinion carrier comprised of two cold form cooperating carrier components, each consisting of an aperture relatively flat plate having legs extending transversely from the plate; assembling the components so that the legs of one of the compo... | 03/08/2005 |
| 6757975 | Multi-layered compliant mechanisms and method of manufacture A compliant mechanism and method of manufacturing the same includes a plurality of layers formed from stamping a plurality of layers from a layer of thinner material and stacking the layers together. Compliant mechanisms can include clutches, switches, derailleurs, ... | 07/06/2004 |
| 6651336 | Method for producing a planet carrier The method for producing a planet carrier for a planetary gear which has one spider shaft (1) and two guide plates (2, 3) disposed parallel to each other consists in that the guide plates (2, 3) are produced as precision blanked parts and that each of two... | 11/25/2003 |
| 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 |
| 6606788 | Component recognizing method and apparatus A component recognizing method, and an apparatus for executing the method, for applying light to leads on a mounting surface of an electronic component and executing positional detection of the leads by a height detecting section, comprising a 3-D sensor,... | 08/19/2003 |
| 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 |
| 6551009 | Spline connection for limited access space and method of assembly and disassembly A spline connection is provided between a first part and a second part wherein a first set of internal splines is formed on an inner cylindrical surface of the first part and a second set of internal splines is formed on an inner cylindrical surface of th... | 04/22/2003 |
| 6532660 | Backlash adjuster with bevel gear face for adjustment with mating geared tool A bearing backlash adjuster for an axle assemby. A cylindrical body threadingly engages an inner surface of a housing wherein rotation of the cylindrical body causes longitudinal displacement relative to the housing. An opening is formed through the housi... | 03/18/2003 |
| 6502473 | Rack bar and manufacturing method thereof A rack bar of a power steering unit for a vehicle has improved bending strength. The rack bar includes a rod portion which fits slidably into an oil seal attached to a cylinder portion of a power cylinder, and a rack portion which is formed with the rod p... | 01/07/2003 |
| 6289586 | Manufacturing of half-crowned gear drives for motion quality improvement Manufacturing a drive system with a mating gear set with substantially reduced gear axis misalignment drive motion non-uniformity error with half-crowned gear teeth, crowned on only one side, to allow for simple and low cost gear molding, but with the mat... | 09/18/2001 |
| 6112611 | Gear with modified tooth surface and gear tooth surface modification method A curvature of a locus of contact points at a higher torque value is increased such that the torque-dependent characteristic of the working transmission error assumes a minimum value in the vicinity of a working torque value T1 at the tooth sur... | 09/05/2000 |
| 6074324 | Toroidal type continuously variable transmission Improved input and output discs for toroidal type continuously variable transmissions are obtained by select processing techniques to form hardened layers. Processing techniques include, e.g., carburizing, carbonitriding, and high-frequency induction hard... | 06/13/2000 |
| 6058794 | Composite sector gear and method for manufacturing same A cast composite sector gear including a hub made of a first material and an outer gear section made of a second material that is cast onto the hub. The hub is configured such that a secure mechanical bond can be created between the hub and the gear secti... | 05/09/2000 |
| 5806373 | Gear and method for manufacturing same A method for manufacturing a gear, which may be utilized as a side gear in a vehicle differential, with the method including the steps of selecting a first billet of low carbon steel and producing an annular gear wheel therefrom, and selecting a second bi... | 09/15/1998 |
| 5797185 | Method of making an isolated ring gear for planetary gear drive systems An isolated ring gear (60) for a planetary gear drive system (12), which isolated ring gear (60) is operative transferring torque loads and reducing the transmission of high frequency vibrations from the planetary pinions (36) of the drive system (12) to ... | 08/25/1998 |
| 5797540 | Method of making a power-transmitting coupling A method for making a power-transmitting coupling including the steps of forming first and second "half-shell" coupling components, each of which has an edge around the component cavity and also has a number of radially-outwardly-extending projections. Th... | 08/25/1998 |
| 5718544 | Method for producing a two-part member having rack teeth A base member such as an elevation pipe of a photographic tripod is severed and rack teeth are formed thereon in a single operation while the base member remains clamped in a V-block. The first rack tooth on each side of the location where the base member... | 02/17/1998 |
| 5647125 | Process for manufacturing a drive plate In a die forging process, projections (4a) are formed on an inner circumference thereof. The projections (4a) are inserted into holes (46) provided in a disc plate (45). The projections (4a) are crushed by a punch 49 so that the disc plate (45) is securel... | 07/15/1997 |
| 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 |
