Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7475611 | Device for externally rotary drive of offset motor A Device for Externally Rotary Drive of Offset Motor, comprising: external rotary assembly, offset Means, drive motor and transmission means; the external rotary assembly carries the hub to rotation by a central shaft immobilized in line with an offset means fixed i... | 01/13/2009 |
| 7370549 | Reduction gear for geared motor, geared motor, and product group thereof A reduction gear for forming a geared motor having a motor and a reduction gear is provided. The reduction gear for a geared motor includes an intermediate orthogonal gear head having an orthogonal transfer mechanism for changing a rotational direction of power deli... | 05/13/2008 |
| 7361112 | Transmission apparatus A transmission mechanism utilizing a source of power which includes a main input shaft that turns upon receipt of power from said source. An auxiliary shaft is turned by the main input shaft through a link that turns the auxiliary shaft at a variable rate relative t... | 04/22/2008 |
| 7314109 | Electric bicycle An electrically powered bicycle includes a hub motor, which is mounted to the bicycle frame by its axle. A drive sprocket mounted to the outer case of motor is engaged by a chain to the sprocket on a multi-speed hub on the rear wheel, so that when the motor turns, i... | 01/01/2008 |
| 7272990 | Powersplit layshaft transmission with bearing plate for support of radial force An automatic multiple-gear transmission, in particular a power-bifurcated auxiliary transmission for motor vehicles, is described, in which several power paths are provided in a transmission housing (24) between a transmission input shaft (3) and a tra... | 09/25/2007 |
| 7261082 | Throttle valve control device To make a throttle valve control device compact, by reducing a longitudinal directional length H and a side directional length L of a gear part comprising a motor gear, an intermediate gear and a drive gear, so as to improve mountability on a two-wheeled vehicle, a ... | 08/28/2007 |
| 7246965 | Method of assembling a link to a support, and a vibration-damping device manufactured by said method A method of assembling a link to a support, the link comprising a body that is elongated along a longitudinal axis between a first sleeve and a second sleeve that are part of the body, the first sleeve surrounding an inner strength member mounted to move relative to... | 07/24/2007 |
| 7225698 | Modular transmission The invention relates to a modular transmission that can be combined with a drive module having an output shaft. The modular transmission comprises at least one worm-gear module that can be coupled directly to the drive module output shaft by an insertable clutch an... | 06/05/2007 |
| 7214157 | Gear unit lubrication A gear unit includes a planet gear rotatable about a sun gear and supported by a planet carrier, the planet carrier including an annular formation for flow of lubricant and which is substantially concentric with the major axis about which the planet carrier is rotat... | 05/08/2007 |
| 7210851 | Arrangement structure of bearings To provide an arrangement structure for bearings which overlap in the axial direction. A driven shaft and an intermediate shaft are linked to each other and are disposed to be substantially parallel with respect to each other. The driven shaft and the intermediate s... | 05/01/2007 |
| 7191678 | Electromotive adjustment device An electromotive adjustment device for adjusting a control element includes a housing and a gear mechanism which has a plurality of intermeshing gear wheels to define a drive train. In driving relationship with the gear mechanism is a drive motor which is constructe... | 03/20/2007 |
| 7171868 | Bearing assembly A bearing assembly which spaces bearing elements in an unequal relationship from one bearing element pocket to the next. The spacing minimizes the likelihood that the bearing elements will rest in the exact same location on an inner and outer race to reduce the pote... | 02/06/2007 |
| 7168336 | Transmission mechanism in slot-in drive A transmission mechanism in a slot-in drive comprises a chassis respectively connected to a motor, worm, worm gear and a plurality of spur gears, a rubber roller, transmission sheet and control sheet, in which one of the spur gears and the rubber roller are connecte... | 01/30/2007 |
| 7144349 | Gas turbine gearbox A gearbox for rotating a propeller in a selected one of a first and second direction is provided. The gearbox includes a many common components, selected irrespective of desired propeller direction, and a few unique components selected based on desired propeller dir... | 12/05/2006 |
| 7127967 | Power transfer unit A motor vehicle power transfer unit for distributing torque from a transmission assembly between a front wheel drive line and rear wheel drive line. The power transfer unit includes a housing that encloses a parallel gear set and a non-parallel gear set, which are c... | 10/31/2006 |
| 7069803 | Adjustment drive An adjustment drive includes a drive motor, and a drive train in driving relationship with the drive motor for reducing a motor speed of the drive motor. The drive train includes a plurality of gear wheels operated by the drive motor and intermeshing with one anothe... | 07/04/2006 |
| 6951150 | Gearwheel intended to be press-fitted onto a shaft and a shaft carrying a press-fitted gearwheel Gearwheel, intended to be connected through press fitting to a shaft, the gearwheel exhibiting a hub and a cog path connected to the hub, the hub exhibiting at least one flank extending axially outside the cog path and a through-hole with a first area situated axial... | 10/04/2005 |
| 6931959 | Train housing for pseudo-planetary kinematic transmission A composite train housing for pseudo-planetary kinematic transmission, which comprises three components namely two external ones fixed to a central one, axial posts being formed between the components. ... | 08/23/2005 |
| 6931964 | Transfer case with multi-gear transfer mechanism A transfer case is provided and includes a first output shaft driven by a powertrain and operably interconnected with a first pair of wheels, a second output shaft selectively driven by the first output shaft and operably interconnected with a second pair of wheels ... | 08/23/2005 |
| 6877928 | Construction of coupling spline sections of automatic transmission A construction of coupling spline sections of an automatic transmission includes: a rotary shaft section having an outer periphery formed with a spline section; a rotary hollow section having an inner periphery formed with a spline section which is coupled with the ... | 04/12/2005 |
| 6862946 | Geared motor comprising position sensor A geared motor comprising an electric motor, a reduction gear having an input connected to a rotational shaft of the electric motor, an output shaft connected to an output stage gear of the reduction gear, which has a coupling member of resilient material attached t... | 03/08/2005 |
| 6805018 | Portable multi-speed, multi-input, multi-output drive for power take-off's and the like A gearbox containing two shafts connected internally causing the shafts to operate at different speeds. One shaft has a 21-spline female connection on one end with a 21-spline male connection on the other end. The other shaft has a 6-spline female connection on one ... | 10/19/2004 |
| 6792823 | Gear drive mechanism for office products A gear drive mechanism for downsizing office products, which can be easily disassembled, by thinning the gear drive mechanism. The gear drive mechanism drives a plurality of shafts cantilevered from a base plate attached within a label writer, wherein gears are fit ... | 09/21/2004 |
| 6666672 | Drive mechanism for a screw pump The invention concerns a screw pump (10) that is configured as a dual-shaft positive displacement motor and that comprises two positive displacement spindle rotors (1 and 2) rotating in opposite directions and having external toothing. In order to provide... | 12/23/2003 |
| 6666103 | Torque transmission device A first helical gear (40) is supported by a first rotation shaft (4), and a second helical gear (13) is supported by a second rotation shaft (14). A rotation body (6, 7) comprising a third helical gear (7) which meshes with the first helical gear (40), an... | 12/23/2003 |
| 6658955 | Gearwheel bearing in gearboxes In the case of a vehicle transmission (2) with two counter shafts placed in a transmission housing (8) for the distribution of load, with one input shaft (4) and one main shaft (20) coaxially aligned with the input shaft (4), a gear (24) is placed in the ... | 12/09/2003 |
| 6601467 | Multi-stage spur gear transmission A multistage spur-type gearing for small and miniature electric motors having a gearing housing and at least two gear shafts or axles held in the gearing housing, with spur gears of different diameters arranged on the gear shafts or axles. To achieve an e... | 08/05/2003 |
| 6581496 | Small size transmission A transmission adapted for use with a motor comprises a basic transmission, which comprises a basic transmission input shaft, borne in a housing via rolling bearings, at least one subsequent transmission stage arranged in the housing, and a variance gear ... | 06/24/2003 |
| 6520886 | Generator drive A generator drive for matching the rotation speed of a gas turbine to an electricity generator, The drive from the gas turbine is introduced by a sun wheel into planet gears of a first epicyclic gear stage and is driven via further planet gears of a secon... | 02/18/2003 |
| 6516685 | Power-saving driving device for treading pedals of bicycle A power-saving driving device for treading the pedals of a bicycle is disclosed. Thereby, the driver may use a smaller force to tread a bicycle so that a higher efficiency is provided. The power-saving device comprises two crank axles. The two crank axles... | 02/11/2003 |
| 6467968 | Bearing assembly in circular clarifiers and thickeners and method for replacing same An apparatus for a clarifier including a central pier terminating in a base plate having a circumferential edge and a ring gear rotatable about the central pier and coupled to a rake structure, the apparatus including a plurality of support bearings and a... | 10/22/2002 |
| 6446523 | Combination gear having a gear slipping-off preventing structure A combination gear having a gear slipping-off preventing structure with an easier combining operation is provided, which includes: a first gear having a shaft hole; a second gear, having a shaft hole, to coaxially couple with the first gear so as to const... | 09/10/2002 |
| 6412362 | Toy gearing system A toy gearing system comprising a drive unit and at least one gear unit. The drive unit comprises a body, a gearwheel supported by the body and having at least some of its teeth exposed for gear engagement, an electric motor for rotating the gearwheel and... | 07/02/2002 |
| 6334369 | Toothed wheel unit with external toothing The invention relates to a toothed wheel unit (12) with external toothing, preferably for heavy machinery gears and/or rapidly moving gears like turbomachinery gears, comprising a toothing carrier (22) with an external toothing (20a,20b) provided on a cir... | 01/01/2002 |
| 6324929 | Toothed gearing group for coupling two concentric shafts to a solitary driving shaft A toothed gearing group comprising two concentric twin shafts, an inner one and an outer one, respectively, a main gear for each twin shaft which is rigid in rotation therewith, a solitary shaft which has a first coupling gear in in meshing engagement wit... | 12/04/2001 |
| 6272941 | Gear reducer having symmetrically disposed rotational shaft supports and method for making same A gear reducer includes rotating assemblies intermeshing with one another to transfer power. The assemblies are supported at one of four locations disposed in mirror image locations. Two of the locations are on a longitudinal centerline of the gear reduce... | 08/14/2001 |
| 6227073 | Modular drive system A modular drive system, includes a plurality of assemblies connectable to one another in series, wherein immediately adjoining two assemblies form, in the flow direction of power, a leading assembly having a case and a rotatably supported driving shaft se... | 05/08/2001 |
| 6205877 | Modular drive system A set of modular elements for the construction of a drive system, includes at least one main transmission, a motor unit, and a stepped sequence of subtransmissions mounted between the main transmission and the motor unit, whereby the subtransmissions are ... | 03/27/2001 |
| 6089116 | Gearing stage In a gearing stage, a driving first wheel has a ferromagnetic profiled rib which is circumferential in one thread, whereas a second driven wheel has permanently magnetic profiled ribs which are disposed in a multi-start manner and which extend only over a... | 07/18/2000 |
| 5950501 | Pinion drive The low-loss pinion drive has a housing (2) in which the gear wheels are fitted in radial bearings (3) and preferably also an additional inner housing (4) enclosing the pinions (1) as closely as possible. At least the air and preferably also the lubricati... | 09/14/1999 |
