Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7882909 | Personal vehicle A personal vehicle comprises a frame with a seat, two large, non-drive wheels connected by an axle at one end of the frame, an elongated swing arm attached to the axle, a pair of caster wheels connected to the frame opposite the large, non-drive wheels and a main dr... | 02/08/2011 |
| 7690448 | Car A car includes a car body having a bottom portion, a wheel that is rotatable, and a supporting member for supporting the wheel, the supporting member being provided to the bottom portion. At least eight pairs of the wheel and the supporting member are provided. The ... | 04/06/2010 |
| 7367463 | Self-traveling working machine In a self-traveling working machine such as a crane, a working attachment such as a boom is arranged to transversely extend below an operator's cabin in such a manner that part of the cabin overlaps the attachment, it being arranged that during crane operation, the ... | 05/06/2008 |
| 7258192 | Two person RUV with ergonomic seating and feet placement A two or more person RUV (recreational utility vehicle) is provided with a multi-place multi-planar saddle seat assembly, multi-place multi-planar foot board assemblies, and grip handles. ... | 08/21/2007 |
| 7249775 | Wheel suspension A wheel suspension for vehicles. The invention relates to both double axle vehicles and single axle vehicles. Feasible areas of use are: prams, carts (pulled manually or by a vehicle), walkers, wheel chairs, skateboards, luggage carts and motor vehicles. It is signi... | 07/31/2007 |
| 7246671 | Stair-climbing human transporter A transportation vehicle and methods for transporting persons, robots or cargo, and more particularly motorized vehicles, and methods for transporting over surfaces, including surfaces such as floors, roads, paths and sidewalks, and surfaces having obstacles or incl... | 07/24/2007 |
| 7198130 | V-drive motor arrangement A V-drive motor arrangement for a motor vehicle, with the motor vehicle including a pair of frame members maintained in a spaced apart relationship. The V-drive motor arrangement includes a first motor mounted between the two frame members and coupled to a first gea... | 04/03/2007 |
| 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 |
| 7134515 | Utility transport system The present invention comprises a utility transport truck having electro-pneumatic controls for coupling and decoupling of devices which are in weight and sensitivity categories that make manual movement without power assist difficult or impossible. ... | 11/14/2006 |
| 7108086 | All wheel drive utility vehicle with bogey beam suspension A utility vehicle that has a bogey beam suspension for the front steered wheels is also provided with all wheel drive by mounting a drive shaft within the bogey beam so that power can be furnished to the front axle. For a six wheel vehicle the middle axle is mounted... | 09/19/2006 |
| 7083013 | Self-leveling and balancing vehicle A self-leveling and balancing vehicle composed of a base and a moving and driving mechanism installed on the base, the mechanism having two longitudinal moving seats installed on the guiding rails fixed on the base, a connecting frame extending to and connecting the... | 08/01/2006 |
| 7051832 | Material handling vehicle with dual control handles A material handling vehicle includes first and second control handles positioned at opposing ends of an operator compartment. The first control handle is positioned adjacent the forks for driving the vehicle in a fore or forks first direction, and the second control... | 05/30/2006 |
| 7028583 | Axle assembly with transverse mounted electric motors An axle assembly includes a first and a second electric motor which drive a gearbox assembly substantially therebetween. The electric motors drive the gearbox assembly which drives the vehicle wheels through a first and second axle shaft located along a first axis. ... | 04/18/2006 |
| 6968913 | Skid steer vehicle including steering actuators to simultaneously steer one side's wheels A skid steer vehicle includes a left side steering actuator that is coupled to left front and left rear drive wheels to steer the wheels with respect to the chassis, a right side steering actuator that is coupled to right front and right rear drive wheels to steer t... | 11/29/2005 |
| 6948576 | Driving and transmission unit for use in rolling vehicles A driving unit for use with a rolling vehicle is provided containing a first and second motor mechanically coupled to two wheels via a transmission unit which is pivotable about the steering axis of the driving unit and adapted to establish a driving relationship be... | 09/27/2005 |
| 6938711 | Freestanding self-propelled device for moving objects A freestanding self-propelled device for moving objects. The device includes a chassis having lower frame portions and upright frame portions. A single motor-driven drive wheel is centrally located between the lateral ends of the chassis and coupled to the chassis s... | 09/06/2005 |
| 6932173 | Steered vehicle The steered vehicle, which may be a road vehicle or a vehicle devised to be usable upon road surfaces and also upon a rail line, has road wheels or a combination of road and rail wheels as required. The wheels are mounted upon a bogie pivoted about a generally verti... | 08/23/2005 |
| 6564955 | Mobile harbor crane for the combined handling of containers and bulk materials A mobile harbor crane for the combined handling of containers and bulk materials, having an undercarriage and an upper carriage which is mounted rotatably on the base frame of the undercarriage and on which a tower with a boom that can be pivoted about a ... | 05/20/2003 |
| 6543559 | Vehicle propulsion system A propulsion system for a vehicle comprised of two wheels, both of which are in the shape of hemispheres. Each of the hemisphere wheels is mounted through a bearing on a fork with two pivots attached to the inner race of the bearing, allowing the wheel to... | 04/08/2003 |
| 6480771 | Apparatus for determining a failure of wheel speed sensors An apparatus for determining a failure of wheel speed sensors, which is capable of properly determining whether or not a wheel speed detection system including the wheel speed sensors has failed, if at least a wheel speed detected by the wheel speed senso... | 11/12/2002 |
| 6474434 | Drive wheel A drive wheel 10 is shown to include a support member 12 and, a wheel member 11 having a surface contacting portion 18 extending about a periphery of the wheel member 11. A drive shaft 24 includes a drive device 25 arranged to engage a drive surface 26 on... | 11/05/2002 |
| 6098732 | Apparatus for providing self-propelled motion to medication carts Apparatus for providing self-propelled motion to a medication cart comprises a driving unit which is mounted to a base of the medication cart. The driving unit includes a drive wheel which is movable between extended and retracted positions. In the extend... | 08/08/2000 |
| 6000486 | Apparatus for providing self-propelled motion to medication carts Apparatus for providing self-propelled motion to a medication cart comprises a driving unit which is mounted to a base of the medication cart. The driving unit includes a drive wheel which is movable between extended and retracted positions. In the extend... | 12/14/1999 |
| 5924512 | Omnidirectional vehicle and method of controlling the same An omnidirectional vehicle supports the steering shaft M of the driving wheel 1 serving also as a steering wheel through the shaft stub 8 on the body 7 at the point displaced by a distance S horizontally from the ground contact point of the driving wheel ... | 07/20/1999 |
| 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 |
| 5699873 | Operation control system for traveling vehicle When a longitudinal straight traveling mode position A, an oblique traveling mode position B, a transverse traveling mode position C, or spin turning mode position D is selected by a traveling mode changeover switch 21, a signal corresponding to the selec... | 12/23/1997 |
| 5649605 | Wheeled chassis and steering device for steering it A chassis, particularly for carrying a wheelchair with pivotal seat (S), fitted with ground-engaging wheels with at least one driven from a drive device through a drive transmission and with at least one steerably suspended and connected to a steering mot... | 07/22/1997 |
| 5479998 | Electronic powered motor vehicle A motor vehicle with an on-board propelling power source and operator control functions for steering, increasing and decreasing the vehicles rate of motion. The vehicle includes a chassis with an operator seat for receiving a human operator; a front wheel... | 01/02/1996 |
| 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 |
| 5183133 | Motor-driven chair A motorized wheel assembly is provided in which there is a seat for receiving the occupant attached to a vertical shaft with a single central wheel mounted at the bottom of the shaft for rotation about a horizontal axis transverse to the chair and definin... | 02/02/1993 |
| 4782906 | Multi-wheel steerable rigid frame power module vehicle A rigid frame off-highway vehicle in which there are a plurality of wheels on each side, each wheel of each of the plurality of wheels being lockedly connected to the other wheels and commonly connected to a torque delivery source such that the wheels rot... | 11/08/1988 |
| 4759421 | Industrial vehicle with integrated emergency recovery device The industrial truck or vehicle comprises a support body or member supporting an elevatable platform. The support body is supported and guided on both ends by a respective transverse pivot joint of a respective driving module or unit. The width of the sup... | 07/26/1988 |
| 4664208 | Six-wheeled motor vehicle A six-wheeled motor vehicle has a pair of front wheels, a pair of middle wheels and a pair of rear wheels. These six wheels are supported on a frame and driven by an engine. The vehicle has the arrangement in which the engine is disposed between the axles... | 05/12/1987 |
| 4616730 | Control chain connection To fasten the control chain on a drive unit of a controllable drive wheel of an industrial vehicle, a housing part is provided on the top thereof with holes which are arranged in a circle. A chain holder is placed into one of the holes, which chain holder... | 10/14/1986 |
| 4529052 | Conveyor truck A conveyor truck including a truck body and a plurality of rotary members rotatably mounted on the truck body in a plane parallel to the floor. A pair of drive wheels, rotatable by aligned rotary shafts lying in a plane parallel to the floor, are mounted ... | 07/16/1985 |
| 4494622 | Motorcycle power transmission and brake assembly A power transmission and brake assembly for motorcycles and like vehicles wherein a chain driven rear wheel is mounted on a swing arm, is disclosed. An idle sprocket and brake assembly including a first and a second idle sprocket and a brake member such a... | 01/22/1985 |
| 4463821 | Drivable, steerable platform for lawnmower and the like A drivable, steerable platform for a lawnmower and the like is disclosed in which a frame member is generally disposed in a frame member plane parallel to the terrain upon which the platform is to travel. Mounted on the frame member are at least three whe... | 08/07/1984 |
| 4462477 | Tractor bogie suspension with steering and weight transfer control Tractor bogie suspension with steering and weight transfer control, effective to pitch such a front-steered machine as to convert from a non-all-wheel drive, three axle operation to an all-wheel-drive, two axle operation, doing so both automatically and o... | 07/31/1984 |
| 4431084 | Industrial truck A straddle type material handling industrial truck providing an approximately constant force on the traction and braking wheel through pivotal mounting of the drive unit augmented by spring loading. The spring loading is accomplished by a spring mechanism... | 02/14/1984 |
