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| Number | Title | Issue Date |
| 8074751 | Steering system for an adaptable vehicle The powered hybrid vehicle is capable of being operative in either one of first and second distinct driving modes each including corresponding first and second directional systems. The hybrid vehicle has a control shaft operatively coupled to a steering device, a fi... | 12/13/2011 |
| 7886852 | Hybrid vehicle The hybrid vehicle kit comprises a vehicle body capable of being interchangeably coupled to either one of a wheel kit thus forming a hybrid vehicle in a wheel mode, the wheel kit having a number of ground-engaging wheels; and a track kit, thus forming the hybrid veh... | 02/15/2011 |
| 7357201 | Kit for converting vehicle to tracked driven snow vehicle The invention is a conversion kit for converting a conventional two-wheeled vehicle, such as a bicycle or motorcycle, into a tracked vehicle for use on snow, mud and sand. The kit converts the vehicle without major modifications to the vehicle, and the vehicle may b... | 04/15/2008 |
| 7311160 | Wheelchair with forced driven front caterpillar wheels The present invention relates to a wheelchair with forced driven front caterpillar wheels with a cable-hauling ratchet lever by which a user, by himself/herself, can pass over a road-block or drains on roads, lifts up the caterpillars from the ground for easy steeri... | 12/25/2007 |
| 7255184 | Track assembly A track assembly having first and second hub assemblies that are operatively connected to a support frame by first and second attachment members, respectively. The first and second attachment members include resilient or movable mounts that are configured so that th... | 08/14/2007 |
| 7232130 | Rear drive assembly for a snow bicycle A rear drive assembly for a snow bicycle includes a body adapted to be supported by an axle which rotatably supports a rear wheel of a bicycle. An upper arm is rigidly affixed to and extends upwardly from the body. A lower arm is rigidly affixed to and extends at an... | 06/19/2007 |
| 7222924 | Track system for a ground engaging vehicle A track system for a ground engaging vehicle such as a tractor is provided. Track systems shown include the ability to maintain existing gear ratios and vehicle speed when interchanging wheels with track systems as described above. Embodiments shown also exhibit imp... | 05/29/2007 |
| 7156185 | Soil stabilizer with track apparatus A soil stabilizer treating earth includes a stabilizer frame, a rotor rotatably mounted thereon and including a cutting tool for cutting earth and being movable such that the rotor may engage various depths of earth, a rotatable axle, and a track apparatus mounted o... | 01/02/2007 |
| 7083012 | Motorized traction device for a patient support A patient support including a propulsion device for moving the patient support. The patient support includes a propulsion system having a propulsion device operably coupled to an input system. ... | 08/01/2006 |
| 7047712 | Self-propelled mower having enhanced maneuverability A frame of a mower supports wheel assemblies, a propulsion unit, and a mowing deck. Each wheel assembly is associated with a corresponding wheel, a corresponding electrical steering motor, and a corresponding electrical drive motor. A controller controls a direction... | 05/23/2006 |
| 7024843 | Self-propelled mower having enhanced maneuverability A method for operating a mower comprises defining a reference axis of rotation at a desired point along a path segment of the mower. A controller orients wheels of the mower generally tangentially to a circular region about the reference axis. A drive motor applies ... | 04/11/2006 |
| 7024842 | Self-propelled mower having enhanced maneuverability A frame of a mower supports wheel assemblies, a propulsion unit, and a mowing deck. Each wheel assembly is associated with a corresponding wheel, a corresponding electrical steering motor, and a corresponding electrical drive motor. A controller controls a direction... | 04/11/2006 |
| 6981563 | Vehicle drive device with flexible crawler and vehicle thus obtained The drive device of the invention comprises a ready to fit unit or kit, for installing in a detachable manner on one side of a chassis of a motor vehicle. The unit comprises a flexible crawler looped round a drive wheel adapted to be mounted on a drive hub of the ve... | 01/03/2006 |
| 6904986 | Terrain conforming track assembly An endless track assembly that mounts to a wheeled vehicle. The assembly provides 1) a track suspension having fixed or adjustable, independently biased sets of idler wheels to vary the track contour without affecting track tension, 2) an eccentric bearing housing a... | 06/14/2005 |
| 6874586 | Track assembly for an all-terrain vehicle The present invention is concerned with track assemblies for an all-terrain vehicle, which make it maneuverable and effective upon a variety of unstable, uneven, stable and even surfaces, while designed to maintain tension upon the endless track belts to keep them i... | 04/05/2005 |
| 6663114 | Manual suspension locking of a skid steer vehicle having a sprung suspension A skid steer vehicle has sprung suspensions that can be locked to prevent vertical movement with respect to the chassis of the vehicle. The operator controls include a switch that the operator can manipulate to lock the suspensions on command. The switch ... | 12/16/2003 |
| 6659214 | Tracked vehicle operable by a non-tracked vehicle A tracked vehicle adapted for receiving a wheeled vehicle and to be driven by the wheeled vehicle. The tracked vehicle has a chassis. Guide and drive wheels are mounted on the chassis at each side and a set of tracks are driven by the driven wheels and gu... | 12/09/2003 |
| 6640915 | Vehicle A vehicle, which can be used in particular as an agricultural vehicle and/or for construction purposes, has a vehicle frame, a drive and an undercarriage. The undercarriage (4, 4a) includes on both sides wheels (12, 13) having tires, and/or chain wheels (... | 11/04/2003 |
| 6615939 | ATV track conversion An ATV endless track conversion using sprocket rings fit over each of the tires of the rear wheels which are inflated into a tight driving connection. A swing arm extension is pivoted to the ATV swing arm and has its own spring-shock absorber suspension i... | 09/09/2003 |
| 6419036 | Vehicle for wheel chairs A vehicle for transporting an individual on a wheel chair over land. The vehicle including a support platform with a first end, a second end, a mid-section and generally parallel sides; a first access platform attached to the first end of the support plat... | 07/16/2002 |
| 6135220 | Modular system for track-laying vehicle A modular track suspension system is readily adapted for attachment to any presently manufactured full-size automotive vehicle built with a load-carrying frame, being easily substituted for the vehicle's conventional wheeled undercarriage either during or... | 10/24/2000 |
| 6076619 | All terrain vehicle for disabled persons A self-powered, all terrain vehicle designed for self-assisted transfers of a paraplegic, or other disabled person, between the vehicle and a wheelchair. A longitudinally extended vehicle underframe is carried between two track mechanisms. Each track mech... | 06/20/2000 |
| 6006847 | Endless track structure for light wheeled vehicle An endless track structure to replace the wheels of an all-terrain vehicle, that is adequately attached to the existing wheel hub by a removable mounting shaft. This provides a non-rigid frame that supports spaced apart synchronized driving cog wheels. Th... | 12/28/1999 |
| 5855248 | Track drive conversion apparatus for wheel driven vehicle A supporting wheel substitute or track drive conversion apparatus is connectible to a driven wheel of a vehicle having a support frame. A frame is pivotally connectible to the support frame of the vehicle for movement in a vertical plane relative to the s... | 01/05/1999 |
| 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 |
| 5388656 | Endless belt traction device for vehicles A traction unit for the road wheel of a farm tractor, or an analogous vehicle, that includes two idler wheels, located near the front and rear surfaces of the road wheel tire, and an endless flexible belt, trained around the three wheels. Each idler wheel... | 02/14/1995 |
| 5361860 | Conversion unit for wheel-driven tractors A track conversion unit for wheel-driven tractors in which the forward steerable wheels and their axle of the wheel tractor are removed from the wheeled tractor and replaced with tandem wheel units respectively secured to the forward end of the tractor--o... | 11/08/1994 |
| 5343960 | Caterpillar track attachment The caterpillar track attachment is provided for a vehicle having a drive shaft and a steering mechanism. The attachment comprises a pair of endless caterpillar tracks for propelling the vehicle, a frame for supporting the vehicle, drive devices to be ope... | 09/06/1994 |
| 5330019 | Track vehicle A towing vehicle having power-driven entered rear drive wheels. A towed attachment frame with lateral trailing wheels is coupled to the towing vehicle. A continuous belt on each side of the vehicle is trained over a drive wheel and a trailing wheel. A row... | 07/19/1994 |
| 5273126 | Tracklaying vehicles A suspended-track tracklaying vehicle 8 (FIG. 1) comprises an endless ground-engaging track 12, a drive sprocket 20 which remains positionally fixed relative to the vehicle body, a rear idler 14 and track-engaging ground rollers 16 which move with the swi... | 12/28/1993 |
| 5246246 | Walking beam track tension device The invention is a walking beam for a tandem wheel set having a continuous rack wrapped around tires on the set. The set's wheels are mounted on shoes which slide on bars forward or backward relative to the vehicle having the wheel set. A carriage member i... | 09/21/1993 |
| 5240084 | Converter assembly for converting a drive-wheel tractor into a track-driven tractor A converter assembly for converting a drive-wheel-driven tractor into a track-driven tractor, the assembly having its frame separate and unattached relative to the frame of the tractor and constructed and arranged, together with a continuous track, to be ... | 08/31/1993 |
| 5102153 | Snow cycle attachment for a bicycle frame A kit for connecting a multiple speed bicycle to a multiple speed snow cycle, the kit including a ski assembly adapted to be mounted on the handlebar column, a drive device mounted on the rear axle and being operatively connected to the bicycle sprocket t... | 04/07/1992 |
| 4865141 | Device for changing over a vehicle provided with wheels to a track vehicle A motor vehicle which can be changed over from a wheeled vehicle to a track vehicle includes two track aggregates provided with steering or drive wheels positioned coaxially with the drive axles of the vehicle and attached to the rims of the drive wheels ... | 09/12/1989 |
| 4727948 | Rear crawler track retrofit for garden and lawn tractors A rearwardly projecting mounting arm is provided for the rear of a lawn or garden tractor and has its forward end secured anchored relatively to the rear drive wheel axle of the tractor. The rear end portion of the mounting arm mounts longitudinal mid-por... | 03/01/1988 |
| 4719982 | Apparatus for converting a road vehicle into a snowmobile A conversion arrangement for converting a conventional rear wheel drive road vehicle to a snowmobile comprises a subframe upon the sides of which are mounted track support wheels and tracks with the subframe attached to the vehicle through the conventiona... | 01/19/1988 |
| 4706769 | Conversion unit for all terrain vehicles There is disclosed a conversion unit for attachment to an all terrain vehicle to convert it into a track laying vehicle. A subframe is attached to the rear of the track laying vehicle, and two idler wheels are mounted on the subframe. Spring strut means e... | 11/17/1987 |
| 4694872 | High performance drive tire arrangement for agricultural tractors A lightweight device for obtaining improved performance of rubber tired vehicles. The arrangement has high-strength, thin-gauged traction intensifying means secured to the driving member for a tire, having a smooth or shallow tread, providing improved dra... | 09/22/1987 |
| 4683970 | Trailer for all-terrain vehicle The trailer disclosed is hitched to an all-terrain vehicle, particularly an all-terrain tricycle, not just by the conventional universal-swiveling trailer hitch but also by spring struts. The springs extend and converge forwards and upwards from the ends ... | 08/04/1987 |
| 4640421 | Truck crane conversion to crawler crane There is disclosed a truck crane of the type having a crane mounted to a truck frame and using wheels for movement which is convertible to a crawler type crane of the type including a truck cab having its own power source and drive train, the frame thereo... | 02/03/1987 |
