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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 |
| 7775605 | Vehicle wheel with rock guard A wheel assembly for a vehicle includes a wheel having a first rim half and a second rim half secured together to form an annular outer rim for receiving a tire. The rim halves have aligned central openings and aligned apertures for receiving fasteners for mounting ... | 08/17/2010 |
| 7322592 | Aerodynamic coasting bicycle and method of use An aerodynamic coasting bicycle and method of use are disclosed. In one form, an aerodynamic cycling apparatus includes a main frame including a rear wheel mount and a front wheel mount. The main frame includes a light-weight material and a front wheel is coupled to... | 01/29/2008 |
| 7252348 | Wheel assembly for a tracked vehicle There is provided a wheel assembly and associated method of mounting wheels about a hub, by providing a hub comprising a shoulder having a clearing space allowing a wheel introduced by one side of the hub to be pivoted to an opposite side thereof. ... | 08/07/2007 |
| 7219707 | Enhanced hollow foam tire structure A hollow EVA foam tire structure includes a tire, a core and a rim. The core includes a plurality of sections substantially arranged into an annular shape and being hollow on both sides. A plurality of protruding block sections is disposed on the internal side of th... | 05/22/2007 |
| 7204561 | Cap with a roughly disk shape and a wheel including the same A is attached to a hollow portion in a wheel, an inner peripheral groove is provided on an inner peripheral surface of the hollow portion and an outer peripheral groove is provided on the outer peripheral surface of the cap, forming a single annular space. Into the ... | 04/17/2007 |
| 7032980 | Non-slip wheel for a child's toy A wheel for a child's toy formed from a first and second section. The first section is made from a material having a Shore A durometer of 100 or less. The second section is disposed within the first section. The second section is made from a rigid material and provi... | 04/25/2006 |
| 6572198 | Structure for connecting a rim with a tire A structure for connecting a rim with a tire. The tire is formed with a central axial through hole. Multiple annularly arranged perforations are formed around the through hole. Each perforation is defined by a close circumference which is separated from t... | 06/03/2003 |
| 6340210 | Wheel for vehicle A wheel for a vehicle comprises first and second wheel halves joined together, and a center plate being generally cross-shaped. Each wheel half has a disk portion and a rim continuing from the disk portion. The center plate is inter-posed between the disk... | 01/22/2002 |
| 6000762 | Wheel A wheel has a tire, two wheel disks disposed in a center of the tire, and a gasket disposed between the two wheel disks. Each of the wheel disks has an axle hole, a plurality of threaded holes, and a plurality of lock holes. The gasket has a center hole, ... | 12/14/1999 |
| 5826948 | Two-piece plastic wheel for lightweight automobiles A wheel for a lightweight plastic automobile includes a unitarily-molded outboard plastic rim defining an inboard-oriented engagement surface and a unitarily-molded inner plastic rim defining an outboard-oriented engagement surface. The engagement surface... | 10/27/1998 |
| 5533793 | Agricultural tires and wheel assemblies therefore An agricultural wheel assembly constructed of a plastic wheel half and a metal half releasably secured together for use with agricultural row crop planters and grain drills. The plastic wheel half has a smooth flat or shallow cup for eliminating the probl... | 07/09/1996 |
| 5251965 | Wheel assembly A solid elastomeric tire is provided with an inwardly extending circular flange which is received in a V-shaped groove formed by and between inner faces of the two wheel disks of a disk wheel assembly. The disks are welded together around a circle radiall... | 10/12/1993 |
| 5188429 | Fabricated wheel having a radially inwardly extending disc face A fabricated vehicle wheel wherein a separately formed mounting cup is secured to a back surface of a disc face, and wherein the disc face extends radially inwardly to substantially cover a lug mounting area formed in the mounting cup. The inwardly extend... | 02/23/1993 |
| 4944563 | Wheel assembly including a solid tire A wheel assembly incorporating a solid tire having a controlled deflection under load. A wheel assembly (20,200) includes a solid tire (22,202) mounted on a rim (24,204). The rim includes a plurality of axial grooves (68), radial grooves (60), or "U" shap... | 07/31/1990 |
| 4822111 | Wheel assembly and method of forming such assembly A wheel assembly includes first and second wheel halves each having an outer annular rim with a valley portion and an integral wall with external and internal surfaces. Each wheel half is shaped at its center to form an opening extending through said wall... | 04/18/1989 |
| 4732428 | Streamlined wheel for bicycle The invention relates to a streamlined wheel for bicycle, formed by two half shells hollow inside and with thin section, which are coupled together to form a rim having biconvex lenticular shape with a circumferential groove to house a tire.... | 03/22/1988 |
| 4580846 | Wheel-cased bearing A rubber tired wheel assembly is provided with two wheel rim blanks welded together after the installation of ball bearing assemblies in each of the rim blanks. The bearing assemblies are retained by casing caps confining the bearing outer races in wells ... | 04/08/1986 |
| 4538657 | Wheel for land vehicles and method for moving such vehicles over soft or irregular surfaces A wheel is disclosed for use on land vehicles such as small manually drawn trailers and similar carriers, the wheel having a tire supporting rim (12) and a low pressure tire (48) engaging the rim, the tire comprising a thin walled torus (50) of elastomeri... | 09/03/1985 |
| 4488761 | Wheel disc brake In a combined wheel-disc assembly, the wheel disc surface is used as a brake rotor. The need for a separate disc rotor is eliminated and the assembly provides a large area for brake contact and desirable air cooling of the braking surface. Braking forces ... | 12/18/1984 |
| 4000926 | Wheel with individually formed ribs A vehicle wheel of the disclosure includes a plurality of structural members secured to each other to define a cavity that receives foam which adheres to the structural members to cooperate therewith as a load bearing component. One of the structural memb... | 01/04/1977 |
| 3985949 | Cable with turn back protector A turn-back protector securable within the return bend of a multi-conductor sheathed cable to limit the minimum radius of a return bend in the cable thereby protecting the cable from too severe bending. The protector is particularly useful in connection w... | 10/12/1976 |
