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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7337862 | Mono-wheel vehicle with tilt mechanism In accordance with the present invention a mono-wheel vehicle is provided. The vehicle includes a housing with an inner circumference. A wheel is connected to the housing such that the wheel is able to rotate independently of the housing. The wheel has an outside po... | 03/04/2008 |
| 7270204 | Electrically motorized wheel with protective cover An electrically motorized wheel assembly is provided which may be used in automotive vehicles. The wheel assembly is equipped with at least one electric motor having an output shaft located eccentrically from an axle of a wheel. The wheel assembly includes a protect... | 09/18/2007 |
| 7182708 | Final drive for electric motor to wheel A final drive assembly for transmitting torque between an input and an output includes a compound gear assembly. The compound gear assembly includes at least three planetary gear trains and is in driving engagement with the input. Each planetary gear train of the at... | 02/27/2007 |
| 7179193 | Arrangement for driving a wheel of a vehicle Method and arrangement for driving a wheel of a vehicle in which the arrangement includes a planetary gear transmission (6) which in turn has a sun gear (7) connected to a driving axle (4), a planet carrier (11) on which at least one plan... | 02/20/2007 |
| 7148594 | Axial gap electrical machine An axial gap electrical machine employs unique architecture to (1) overcome critical limits in the air gap at high speeds, while maintaining high torque performance at low speeds, while synergistically providing a geometry that withstands meets critical force concen... | 12/12/2006 |
| 7124854 | Transmission device of vehicle A transmission device of a vehicle is equipped with a shaft, a driven wheel with internal gear teeth defined thereon mounted to the shaft center thereof, and a small driving gear with outer gear teeth defined thereon in mesh with the internal gear teeth of the drive... | 10/24/2006 |
| 6910563 | Motorcycle automatic clutch with manual release A motorcycle clutch having a drive portion including a clutch basket assembly, and a driven portion including a clutch hub. A plurality of drive clutch plates are driven by the clutch basket assembly and a plurality of driven clutch plates are driven by the clutch h... | 06/28/2005 |
| 6904987 | Electrical drive for a vehicle An electric drive for an electric or hybrid vehicle has an electric motor, with which a vehicle wheel is drivable, for instance via an articulated shaft. The the electric drive is embodied additionally with a mechanically actuatable wheel brake, which is actuatable ... | 06/14/2005 |
| 6702050 | Robotic vehicle construction A robotic vehicle is provided with an elliptical shaped housing, the housing having a circumferential track disposed about its midsection. The circumferential track is driven by a prime mover to rotate the housing and move it over a variety of different t... | 03/09/2004 |
| 6505698 | End-weighted vehicle An end-weighted vehicle comprising a framework having opposing ends and a wheel mounted to one of the ends for rotation and defining a footprint, and a weight supported by the framework proximate the wheel so as not to interfere with the rotation of the w... | 01/14/2003 |
| 6382334 | Power drive unit for a golf trolley A power drive unit (1) for attachment to a golf trolley comprises a drum (2) rotatable about a generally horizontal axis (3) with the external periphery (4) of the drum (2) adapted to seat on the ground and to make frictional contact with the ground for d... | 05/07/2002 |
| 6298934 | Spherical vehicle A spherical vehicle is designed to increase passenger safety by rolling away with the passengers from a collision scene while applying controlled braking force until the speed of the vehicle is reduced to zero. The spherical vehicle has an outer body and ... | 10/09/2001 |
| 5370410 | One-wheeled vehicle A one-wheeled vehicle has a spokeless hoop, a rigid load carrier mounted inside the hoop and a seat. The carrier forms a connection between a plurality of guide elements rotatably connected with the carrier and distributed along the circumference of the h... | 12/06/1994 |
| 5366034 | Impact energy dissipation vehicle A vehicle has a passenger compartment suspended between two wheels mounted at the ends of a single axle that is perpendicular to the direction of travel. The passenger compartment is mounted beneath the axle so as to allow the passenger compartment to rep... | 11/22/1994 |
| 5332058 | Snowmobile for transporting people on snow and/or ice The present invention relates to a self-propelled scooter for transporting and carrying uphill one or more persons on snow and/or ice. The self-propelled scooter comprises a supporting structure which supports a gearmotor unit which actuates a roller whic... | 07/26/1994 |
| 5088967 | Planetary assembly with wet disk brake The planetary assembly with wet disk brake of the invention comprises a hollow spindle (3) rigidly fixed to an axle house (1) of a running gear of a vehicle, a hollow wheel hub (5) carrying a wheel (7), the wheel hub (5) being rotatably supported in a rol... | 02/18/1992 |
| 5025876 | Rotating disc multi-surface vehicle A rotating disc propelled omni-directional vehicle operable on multi-surfaces which has a disc (20) in an eliptical or dish-shape in contact with the surface upon which it rests. A platform (26) is rotatably mounted on the disc and is capable of supportin... | 06/25/1991 |
| 4919489 | Cog-augmented wheel for obstacle negotiation A vehicle for overcoming obstacles includes a wheel having an elastomeric flexible annulus upon which the wheel normally rides. Parallel spaced sprockets receive the annulus and include individual cogs which extend less radially outwardly than the annulus... | 04/24/1990 |
| 4655326 | Cooling system for planetary wheel end with wet brake An axle outer end is disclosed including a planetary reduction drive unit and a multiple disc friction brake. The friction brake includes a plurality of rotatable and non-rotatable discs for selectively interconnecting the ring and sun gears of the planet... | 04/07/1987 |
| 4649772 | Planetary wheel drive assembly A planetary wheel drive assembly includes a hollow spindle secured to a frame which provides the support for a wheel structure, an outboard planetary gear set and an inboard disc brake mechanism. The planetary gear set has a ring gear connected to the spi... | 03/17/1987 |
| 4646880 | Planetary wheel end with wet brake An axle outer end is disclosed including a planetary reduction drive unit and a multiple disc friction brake. The friction brake includes a plurality of rotatable and non-rotatable discs for selectively interconnecting the ring and sun gears of the planet... | 03/03/1987 |
| 4583428 | Wheel hub with integral planetary speed reducer The invention provides a modification to a wheel hub of the kind comprising hollow body housing a wheel speed reducer having a pinion carrier which is locked for rotation with the hollow body. According to the invention, splined mounting means is provided... | 04/22/1986 |
| 4537269 | Vehicle with pneumatic assembly for driving, braking, and reducing friction on bearings In a moving vehicle such as an automobile, compressed air is used for powering the vehicle, for minimizing friction in the wheel bearings so as to maintain the vehicle's momentum and decrease the amount of energy required for maintaining the vehicle at a ... | 08/27/1985 |
| 4501434 | Vehicle for a fun-fair or the like The vehicle comprises an element which forms a wheel, preferably a sphere 11 having an outer bearing surface and an inner bearing surface and, inside the wheel 11, an element which forms a preferably hemispherical car 1 for at least one passenger, said ca... | 02/26/1985 |
| 4462605 | Wheelchair having anti-rollback mechanism The propulsion wheels of a manually propelled wheelchair are equipped with one-way engaging and one-way freewheeling clutch devices which cooperate with races fixed to the wheelchair frame, whereby unwanted backward movement of the wheelchair is prevented... | 07/31/1984 |
| 4431075 | Wheel for vehicle A wheel for a vehicle has an inner driving element with an outer circumferential surface and an outer driven element with an inner circumferential surface, wherein the outer circumferential surface of the inner driving element has a smaller diameter than ... | 02/14/1984 |
| 4407382 | Wheel head for driving wheels of vehicles A wheel head for the drive wheel of a heavy duty vehicle provides the hub as a housing which is closed at its outer end by a movable cover and can be opened to allow removal of the planetary gearing and brake. The planetary gearing includes planetary gear... | 10/04/1983 |
| 4386787 | Spherical vehicle This disclosure relates to a spherical vehicle which incorporates an internally mounted rotatable seat, an observation apparatus to permit an occupant at least a view of his prospective path of travel and a drive apparatus having a pedes contact surface t... | 06/07/1983 |
| 4282952 | Wheel assembly Several embodiments of a wheel assembly for use with large, off-highway vehicles, comprising a drive motor mounted on the wheel hub, and brake calipers cooperating with an annular brake disc supported by a disc carrier which is "outboard" or disposed radi... | 08/11/1981 |
| 4179006 | Torsionally resilient coupling for transmitting rotary motion A power transmission mechanism for transmitting rotary motion performs two separate functions: It steps down the rate of rotation of an input shaft so that a rotatable member driven through the transmission mechanism rotates at a slower rate; and it also ... | 12/18/1979 |
| 4102542 | Rider propelled vehicle A rider propelled vehicle, particularly designed for use by children as a toy, includes an outer-large diameter wheel having a seat frame located within its periphery. The frame is operatively connected to the outer wheel at two spaced points by an arrang... | 07/25/1978 |
| 4096919 | Propulsion unit for skiers A cleated roller enclosing an internal combustion engine is provided with two handles containing means for engaging the posterior of a skier. The engine is mounted within the roller on a frame which in turn is mounted to both of the roller hubs which are ... | 06/27/1978 |
