Famous Patents
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 |
| 7669684 | Steering drive for a steered wheel of an industrial truck, particularly a rear wheel of a three-wheeled industrial truck A steering drive for a steeled wheel of an industrial truck, particularly a rear wheel of a three-wheeled industrial truck, comprising a steering bolster supporting the rear wheel which is supported to be pivotable about a vertical steering axle inside the flame of ... | 03/02/2010 |
| 7357211 | Steering system for off-road vehicle An off-road vehicle includes a frame and wheels. An engine powers the wheels through a drive system that includes a front differential gear unit. A housing encloses the front differential gear unit. The housing is positioned generally on a longitudinal center plane ... | 04/15/2008 |
| 7137470 | Drive device for an industrial truck A drive device for an industrial truck includes a pivoted bolster rotatable around a vertical axis (V), two drive wheels (4, 5) mounted on the pivoted bolster and a device located axially between the drive wheels (4, 5) to generate a differential actio... | 11/21/2006 |
| 6540039 | Omnidirectional vehicle with offset wheel pairs A wheel base or mobile platform providing omnidirectional motion and control. At least two offset wheel assemblies are coupled to a platform that supports a load. Each offset wheel assembly has two wheels that share a common axis and a mechanical link tha... | 04/01/2003 |
| 5967348 | Method and equipment for turning the wheels of a crane moving on rubber-tired wheels The invention relates to a method for turning a pair of wheels in a crane (1) moving on rubber-tired wheels or the like. The crane comprises an electric motor (28) with gearing (16), the electric motor functioning as traversing gear. When the wheels of th... | 10/19/1999 |
| 5775455 | Steering mechanism for electric vehicles with an off-center mounted drive wheel A steering device for an amusement car including a drive wheel mounted off-center on a wheel shaft to provide a rotation force for quick and automatic recovery of the steering device to steer the car away from an obstacle that is encountered during use. T... | 07/07/1998 |
| 5735416 | Traversing gear arrangement for a crane moving on rubber tired wheels or the like The invention relates to a traversing gear arrangement for a crane moving on rubber-tired wheels or the like. The crane having an electric motor functioning as the traversing gear and including gearing and wheels arranged in pairs. The wheels in each of t... | 04/07/1998 |
| 5474144 | Twin-wheel motorcar with differential height and speed mechanisms The twin-wheel motorcar has twin wheels with single side wheels driving capabilities. Twin-Wheel Motorcar has sliding doors, top cover, emergency parking pad, single arm differential height steering shock-tube mechanism and in-hub non-divided axle frictio... | 12/12/1995 |
| 5472062 | Hydraulic drive system for steerable wheel of dump truck A hydraulic drive system of a steerable wheel of a dump truck facilitates the attaching and detaching of a hydraulic motor and allows for a large hydraulic motor to be used. In the drive system, a wheel axle is rotatably supported within a receptacle seat... | 12/05/1995 |
| 5379842 | Material-handling equipment A multi-wheeled transport vehicle which is capable of crossing uneven terrain without torquing the load, including modular wheel units permitting a low profile and means to equalize the load between the individual wheel units.... | 01/10/1995 |
| 5199524 | Automated guided vehicle An automated guided vehicle for carrying and moving heavy loads providing the vehicle with a gross weight of more than about 100 tons includes a vehicle platform or deck for carrying the loads and wheel assemblies at either end of the platform for both st... | 04/06/1993 |
| 5083625 | Powdered maneuverable hospital cart A powdered maneuverable cart with a cart frame including a top load bearing portion and a bottom portion interconnected having hydraulic cylinders for raising the top portion in relation to the bottom portion. Situated above the cart frame top portion is ... | 01/28/1992 |
| 4425979 | Motor vehicle A motor vehicle is disclosed having a main frame with rear wheels in substantially fixed alignment supporting the main frame, a steerable frame provided at the forward end of the main frame including front wheels in fixed alignment with the steerable fram... | 01/17/1984 |
| 4368795 | Economy safety passenger vehicle A safety automobile is reduced in width compared to conventional vehicles and tapers forwardly to nearly a point to minimize head-on collision danger and provide lateral deflection of the vehicle to left or right on striking an obstruction. A dual power s... | 01/18/1983 |
| 4171028 | Articulated tractor having tandem power unit A tractor having two power units supported on respective frame portions which are pivotably connected in tandem, each power unit operatively connected to its respective fore or after axle which respectively mounts four or six wheels. The frame portions su... | 10/16/1979 |
