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 |
| 8096204 | Gear and electric power steering device A gear includes a metal core and a synthetic resin tooth body. The metal core includes a cylindrical portion, and a disc portion that extends inwardly in a radial direction from one end of the cylindrical portion. The synthetic resin tooth body is coupled to the cyl... | 01/17/2012 |
| 7562601 | Worm wheel and electric power steering system A worm wheel includes an annular metallic core portion and a resin rim portion which is fitted on an outer circumference of the core portion. The rim portion includes an annular main body portion which covers the outer circumference of the core portion and in which ... | 07/21/2009 |
| 7360468 | Electric power steering device and resin gear used for the same An electric power steering device having a resin gear used in a speed reduction gear mechanism and the resin gear used for the device are provided. The speed reduction gear mechanism includes a driven gear that is the resin gear integrally formed by fitting a resin ... | 04/22/2008 |
| 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 |
| 7231845 | Cone selector and associated transmission assembly A multi cone selector in a transmission employs sandwiched cone friction surfaces 19A, 20A and 21A and these are shown in free or unengaged state while the corresponding friction surfaces as numerals 19, 20 and 21 are shown as enga... | 06/19/2007 |
| 7197959 | Coupling structure mountable to a rotatable shaft A coupling structure capable of being removed in an undamaged condition from a rotatable shaft. The coupling structure includes a metallic insert and a polymer hub surrounding the metallic insert. The metallic insert features a sleeve and a flange at the leading edg... | 04/03/2007 |
| 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 |
| 7037203 | Adapter device for adapting a worm gear An adapter device is disclosed for adapting a drive of a worm gear to rotate an output shaft. The adapter device includes a sleeve having an inside diameter which is slightly greater than an outside diameter of the output shaft. The sleeve has an outer diameter whic... | 05/02/2006 |
| 6993993 | Sheet metal outsert-molded gear A sheet metal outsert-molded gear, in which a molded resin gear is formed by outsert-molding along the outer perimeter of a disk-shaped sheet metal, characterized in that one or more notches, holes, or protrusions are provided in the outer perimeter of the disk-shap... | 02/07/2006 |
| 6921994 | Motor having rotatable shaft coupled with worm shaft A driving-side rotator of a clutch has a connecting hole, within which a connecting portion of a rotatable shaft is loosely fitted while providing a space between the connecting hole and the connection portion. The connecting hole of the driving-side rotator is enga... | 07/26/2005 |
| 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 |
| 6591708 | Gear made of fiber reinforced resin and method for manufacturing same A gear made of fiber reinforced resin which is capable of being increased in durability and mechanical strength, as well as gear cutting characteristics. The gear is manufactured by arranging ring-like reinforcing fiber substrates and a metal bushing in a... | 07/15/2003 |
| 6425455 | Electric power steering apparatus An electric power steering apparatus includes a worm wheel having an annular tooth portion made of synthetic resin and a boss portion made of metal. The annular tooth portion has teeth that engage with a worm, and the boss portion is fitted to the annular... | 07/30/2002 |
| 6354422 | Parking apparatus of an automatic transmission and method for controlling the same A parking apparatus of an automatic transmission is provided to enable movement of the select lever from P range to another range to be realized more smoothly. A parking apparatus of an automatic transmission includes a parking gear assembly comprising an... | 03/12/2002 |
| 6324930 | Gear assembly A gear assembly having a body member with an end wall interconnecting a cylindrical inner wall and a cylindrical outer wall so as to define an annular cavity. The gear assembly also includes a gear ring having a hub segment mounted on and fixed to the out... | 12/04/2001 |
| 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 |
| 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 |
| 6053060 | Two-piece pinion gear A two-piece pinion gear includes a metal outer portion and a plastic inner portion. The metal outer portion includes a plurality of gear teeth that are adapted to be engaged by a driving member. The plastic inner portion preferably includes a spiraled gro... | 04/25/2000 |
| 6035737 | Assembly having an outer band member secured to an inner housing A transmission assembly includes an inner housing member and an outer band member. The outer band member is slidingly received over the outer surface of the inner housing member. An inner surface of the outer band member includes a plurality of notches. A... | 03/14/2000 |
| 5906135 | Coast clutch with power take off gear A transmission assembly includes an inner housing member and an outer band member. The outer band member is slidingly received over the outer surface of the inner housing member. An inner surface of the outer band member includes a plurality of notches. A... | 05/25/1999 |
| 5832780 | Compact reduction gear with two reduction stages A reduction gear with two reduction stages including a first reduction stage consisting of a wheel and worm screw system. The system has a screw and a first wheel. A second stage includes a pinion meshing with a second toothed wheel. The wheel of the whee... | 11/10/1998 |
| 5669423 | Gear for driving a rapier of a loom A gear (1) for driving a rapier of a loom and composed of a separately manufactured synthetic base body (3, 5) to which a wear-resistant band (9) forming the outside teeth (2) of the gear is bonded by an adhesive (10).... | 09/23/1997 |
| 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 |
| 5271287 | 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... | 12/21/1993 |
| 5226756 | Disk assembly A disk assembly is comprised of a circular plate having an outer flange portion extending in the radial direction and a plurality of tongues each of which is pressed out in the axial direction and an annular member whose inner radius is equals to that of ... | 07/13/1993 |
| 5086660 | Gearwheel attached to an expanded tube A gearwheel attached to an expanded tube portion in a force-locking way, and including at least one plate metal disc member having a cylindrical hub portion on which a supporting ring is slid which has a yield strength higher than that of the tube portion... | 02/11/1992 |
| 4912998 | Gear arrangement In a gear arrangement consisting of two gears meshed with each other, at least one gear is constructed of a teeth portion having teeth along its circumference and a shaft portion adapted to be mounted to a support shaft, a gap space is retained between th... | 04/03/1990 |
| 4712451 | Starter with a gear reduction mechanism A starter with a gear reduction mechanism including an internal ring gear formed of synthetic resin and a reinforcing member. The internal ring gear has a cylindrical portion and a toothed portion formed on an inner peripheral surface of the cylindrical p... | 12/15/1987 |
| 4704864 | Spoke arrangement for a hydrodynamic torque converter In a spoked drive wheel for a hydrodynamic torque converter operating with power splitting, having a spoke for connecting a wheel hub to an external ring of the spoked drive wheel, the spoke cross-section is designed in the shape of a wing profile extendi... | 11/10/1987 |
| 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 |
| 4674351 | Compliant gear A compliant gear which includes an inner hub portion, an outer ring gear portion, and a compliant laminate between the hub portion and the ring gear portion. The laminate includes a rigid laminar shim of generally uniform thickness sandwiched between a pa... | 06/23/1987 |
| 4660698 | One way clutch A one way clutch includes a tubular outer drive member formed of a thermoplastic resin and integrally formed with a torque transmitting member such as a gear or hand lever, a metal sleeve with a polygonal inside face located in the bore of and rotatable w... | 04/28/1987 |
| 4597152 | Method of making feed wheel There is disclosed a hand-held labeler with a thermographic print head for printing on labels releasably secured to a carrier web, a delaminator for delaminating printed labels, an applicator for applying printed labels, a web feeding mechanism including ... | 07/01/1986 |
| 4589543 | Drive shaft for slat conveyor A slat conveyor having a drive shaft with grooves running axially to the shaft and driving a plurality of endless conveyor belts connected to each other on the cargo carrying side with slats positioned transverse to the direction of travel and having on t... | 05/20/1986 |
| 4589860 | Gear and method for making the same Gear for chain drives comprising a gear body of cast material having a hub section, a gear rim section with spur teeth, and a web section joining said hub and gear rim sections, and a ring plate of metal embedded in the web section, the outer edge of said... | 05/20/1986 |
| 4458547 | Non-metallic sprocket An improved non-metallic sprocket, such as the phenolic laminate type, one improvement consisting of sprocket teeth molded from continuous layers of material laminated in a corrugated, sprocket tooth forming construction about the periphery of the sprocke... | 07/10/1984 |
| 4453853 | Differential expansion contraction structural interconnection system A thermally compliant structural interconnection of a support structure and working material components provided by surfaces of the working material components being engaged by surfaces of the support structure. Dissimilar materials or components that are... | 06/12/1984 |
| 4367068 | Universal bicycle sprocket hub The invention pertains to a bicycle drive sprocket hub which may be universally utilized with a plurality of bicycle chain sprockets of different manufacturers. The hub is preferably formed of a synthetic plastic material and is provided with a plurality ... | 01/04/1983 |
| 4258583 | Drive mechanism for rotary drum A drive mechanism for a rotary drum having a toothed ring which is disposed on the outer periphery thereof with a clearance in relation to the drum and which meshes with a drive pinion, the toothed ring is secured to a cylindrical support arranged concent... | 03/31/1981 |
| 4151873 | Regenerator for gas turbine engine A rotary disc-type counterflow regenerator for a gas turbine engine includes a disc-shaped ceramic core surrounded by a metal rim which carries a coaxial annular ring gear. Bonding of the metal rim to the ceramic core is accomplished by constructing the m... | 05/01/1979 |
