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| Number | Title | Issue Date |
| 8157033 | Steering system for a tracked vehicle A steering system for a vehicle having left and right endless tracks, left and right sprocket wheels, a motor and a hydraulic pump includes left and right hydraulic motors mounted to a respective one of the left and right sprocket wheels, a hydraulic circuit connect... | 04/17/2012 |
| 7900723 | Motorized snowboard A gasoline engine powered snowboard having an endless track trained about a support frame containing driven and idler wheels. Engine operation is directed from an upright operator support column. A molded chassis is hinge coupled to pivot about alternative contoured... | 03/08/2011 |
| 7891447 | Remotely controlled vehicle with a track mechanism and independently operated wheels A remotely controlled vehicle with a track mechanism and independently operated wheels is described. The vehicle includes a track assembly that includes a center track drive wheel and corresponding endless center track. A pair of driving wheels are mounted on opposi... | 02/22/2011 |
| 7784571 | Motorized snowboard A gasoline engine powered snowboard having an endless track trained about a support frame containing driven and idler wheels. A molded chassis having a contoured track support pan cooperates with a fringed track and forward and rear foot supports to enable steering ... | 08/31/2010 |
| 7686109 | Motorized snowboard A gasoline engine powered snowboard having an endless track trained about a support frame containing driven and idler wheels. A molded chassis having alternative contoured track support pans cooperate with flexible track surfaces (e.g. fringe or pleat members) and f... | 03/30/2010 |
| 7451840 | Articulated crawler dozer with direct load path structure An articulated loader has an articulated chassis, two A-frames, and four track assemblies. A narrow portion each of the A-frames faces a narrow portion of the other A-frame. The articulated chassis includes a front portion and a rear portion. Likewise, there is a fr... | 11/18/2008 |
| 7416219 | Swiveling work machine A swiveling work machine includes a swivel deck mounted to be pivotable about a vertical axis and a side cover for covering one lateral side on the swivel deck, an accommodating space capable of accommodating a work machine accessory being provided inside the latera... | 08/26/2008 |
| 7347293 | Work vehicle A working vehicle such as a mobile agricultural machine is designed such that it has an improved working efficiency if any spinning turn is not required, and has an improved running property in a wet farm. The vehicle has a pair of right and left crawlers (2)... | 03/25/2008 |
| 7338060 | Corridor connection of a connection having a bellows between two vehicles connected together by a joint The invention is directed to a corridor connection (1) of a connection having a bellows between two vehicles connected together by a joint (30), e.g., of an articulated bus or a vehicle with a trailer, the corridor connection (1) comprising two ... | 03/04/2008 |
| 7267188 | Electric vehicle An electric vehicle has a control unit having a decelerating control function of decelerating an electric motor disposed on a side of a vehicle body corresponding to a turning direction of the electric vehicle, and an accelerating control function of outputting an a... | 09/11/2007 |
| 7229141 | Manoeuvrable traction track A one-piece track comprising, along each opposite edge thereof, regions having an accordion-type structure, which allows these regions to have a variable longitudinal length along each opposite edge of the track according to a movement of the tracked vehicle and to ... | 06/12/2007 |
| 7174977 | Vehicle with electric motor mounted thereon A fuel cell system incorporated in a vehicle has a main electric motor, a drive power transmitting mechanism for engaging and disengaging a fuel gas pump, a coolant fluid pump, a supercharger, and a compressor, which serve as auxiliary equipment, and transmitting a ... | 02/13/2007 |
| 7159955 | Traction band and sprocket for vehicles This invention relates to an endless traction band that is used to propel band laying vehicles [i.e., vehicles which use endless traction bands rather than tires to contact the terrain over which they are driven, e.g., tractors, tanks, bulldozers, etc.]. A novel spr... | 01/09/2007 |
| 7131507 | Tracked ATV The invention relates to a tracked ATV which is fully supported, driven and steered by a pair of parallel endless tracks driven by means of an internal combustion engine. Steering means are arranged to control the differential speed between the tracks for steering t... | 11/07/2006 |
| 7111697 | Chassis supported track assembly An endless track assembly wherein the weight of an associated vehicle/equipment is supported by the track framework. The track assembly provides a framework having a number of idler rollers and a drive sprocket that mounts to a rotational drive power source. The wei... | 09/26/2006 |
| 7086806 | Method for asphalt compaction and compaction apparatus A method of compacting a mat of hot mix asphalt which has been laid by an advancing asphalt paver, the method comprising advancing an asphalt compactor over the laid asphalt such that a compaction surface of the compactor, formed by a lower run of at least one belt,... | 08/08/2006 |
| 7074151 | Drive configuration for a skid steered vehicle An electric drive configuration for a skid steered vehicle comprises: a pair of propulsion motors (74a, 74b), each with a motor shaft protruding from both ends of the motor and mounted on the same axis across the vehicle, each being coupl... | 07/11/2006 |
| 7044245 | Toroidal propulsion and steering system An apparatus comprises a body having a torus skin with inner and outer layers, and a drive system configured to propel the apparatus by moving the inner layer relative to the outer layer. The active skin propulsion system allows movement and steering of a device. A ... | 05/16/2006 |
| 7025429 | Drive assembly for a track-type vehicle A drive assembly for a track-type vehicle which makes the effective ground contact length within the tumbler distance as large as possible. The drive assembly has a single track roller unit disposed closest to the idler and closest to the sprocket respectively, each... | 04/11/2006 |
| 7014278 | Drive assembly for a track-type vehicle A drive assembly has a track frame, an idler, and a sprocket arranged substantially on a straight line that includes single track roller units disposed respectively closest to the idler and closest to the sprocket. The single track roller units each rotatably suppor... | 03/21/2006 |
| 6968914 | Tracked vehicle with improved track drive unit An all-terrain vehicle is supported and driven by endless track units. Each track unit includes a drive belt with rows of interior drive lugs driven by cogs on multiple sprocket wheels of a common drive wheel assembly having an integrated, one-piece drum and hub. Mu... | 11/29/2005 |
| 6926105 | Chassis supported track assembly An endless track assembly wherein the weight of an associated vehicle/equipment is supported by the track framework. The track assembly provides a framework having a number of idler rollers and a drive sprocket that mounts to a rotational drive power source. The wei... | 08/09/2005 |
| 6926109 | Hydrostatic motor drive mount A tracked vehicle includes a track operatively connected to a driveshaft. An output shaft of a hydrostatic motor is selectively rotationally engaged with the driveshaft via a clutch mechanism. When the clutch mechanism is engaged, the motor drives the track. When th... | 08/09/2005 |
| 6907946 | Brake system for a tracked vehicle A direct braking of a drive shaft for a tracked vehicle that moves on rotating track(s). A disc brake is connected to the same drive shaft that has sprocket(s) for engaging the track(s). Upon activation by a vehicle driver, opposing pistons engage the disc to retard... | 06/21/2005 |
| 6902027 | Piping structure of crawler driving hydraulic motor A piping structure of a crawler driving hydraulic motor able to reduce a reduction in strength of a vehicle body frame and shorten the exposure length of a hydraulic piping in the exterior of the vehicle body frame, and reduce a damage opportunity due to an external... | 06/07/2005 |
| 6789014 | Direct modification of DGPS information with inertial measurement data A global positioning system based navigation system for a ground vehicle, in particular an agricultural ground vehicle such as a tractor, combine, sprayer, or the like, includes an inertial compensation assembly that provides inertial augmentation to compensate glob... | 09/07/2004 |
| 6782960 | Tracked vehicle A tracked vehicle with a drive system, which performs driving, braking, directional change, and steering functions as a function of corresponding control commands from an electronic control unit. According to the invention, at least one separate brake system, which ... | 08/31/2004 |
| 6755487 | Brake adjustment method and apparatus thereof A brake adjustment method and apparatus thereof are described which are capable of providing proper brake hydraulic pressure compensation without causing variations due to different adjusters and without lifting the vehicle. The apparatus comprises: (a) an adjustmen... | 06/29/2004 |
| 6692185 | Adjusting arrangement for steerable transport assembly for self-propelled construction vehicle An improved arrangement for adjusting crawler-type transport assemblies in a self-propelled construction vehicle between two differing "home" positions. The crawler transport assembly comprises a steering mechanism including a collar assembly operated via... | 02/17/2004 |
| 6679570 | Track frame structure A track frame structure which can increase a crawler actual ground contact length (L0) from a first track roller to an endmost track roller without increasing a whole length of a traveling apparatus. A notch portion (2a) having a size not contacting with ... | 01/20/2004 |
| 6672412 | Method for operating a vehicle having two propulsion units A method for operating a vehicle having variable-speed left-side and right-side propulsion units (such as, without limitation, a tracked vehicle having a left track powered by a left-track motor and a right track powered by a right-track motor). The left-... | 01/06/2004 |
| 6637529 | Steering control system for tracklaying vehicle A steering control system for a tracklaying vehicle, which ensures smooth turning performance according to various modes such as ascent travel, descent travel, and travel in a low speed range and which provides improved controllability. According to vario... | 10/28/2003 |
| 6588521 | Four track crawler crane A crawler that includes a first crawler assembly and a second crawler assembly attached to the first crawler assembly so that the first crawler assembly is aligned with the direction of travel of the second crawler assembly.... | 07/08/2003 |
| 6544135 | Tracked vehicle with shiftable lateral intermediate transmission Tracked vehicle with at least one engine and one gear-change and steering transmission and with lateral intermediate transmissions as final drives for track sprockets on both side of the drive. Each lateral intermediate transmissions is shiftable between ... | 04/08/2003 |
| 6474426 | Steering method and steering system for tracklaying vehicle A steering method and steering system which enable a minimum turn radius more than the discharge capacities of a hydraulic motor and a hydraulic pump and which positively prevent the unstable traveling and turning behavior of a vehicle when the vehicle ma... | 11/05/2002 |
| 6374933 | Track vehicle track width adjustment A system for adjusting the width of a tracked vehicle is described including a rear suspension having a differential that drives two spur gears with rotational axes located above the differential and adapted to slidingly support two drive axles.... | 04/23/2002 |
| 6298931 | Tracked vehicle steering control system with non-centered steering wheel A control system controls a tracked vehicle drive/steering system which has an engine driven hydraulic steering pump which drives a hydraulic steering motor. In one embodiment, the control system operates to gradually reduce the magnitude of the steering ... | 10/09/2001 |
| 6286620 | Access plate for an axle of a differentially steered vehicle A differentially steered work vehicle is provided with a driving axle having a axle housing with an access opening. An access plate is secured to the access opening and is provided with steering components. The access plate is provided with a steering mot... | 09/11/2001 |
| 6179073 | Hybrid track for a vehicle A vehicle (10) includes a pair of hybrid track assemblies (12) mounted on opposite sides of the longitudinal axis (A) of the framework (11) of the vehicle (10) for cooperating to steer the vehicle (10). Each of the hybrid track assemblies (12) includes a ... | 01/30/2001 |
| 6170584 | Tracked vehicle steering system with steering pump monitoring A control system is provided for a tracked vehicle drive/steering system having an engine driven hydraulic steering pump which drives a hydraulic steering motor. The steering pump is responsive to steering control signals representing a status of an opera... | 01/09/2001 |
