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| Number | Title | Issue Date |
| 8109351 | Multi-link bridge in undercarriage system The present invention employs a multi-link to an excavator for the first, and restricts a relative movement of the center frame (10) and the roller frame (20) using a multi-link bridge (30) in relation to an undercarriage system of vehicle body ... | 02/07/2012 |
| 8047311 | Method of retaining structural transmission members A track driven vehicle comprises a structural member underneath the vehicle. The structural member includes a plurality of structural member apertures for receiving fasteners inserted therethrough. The vehicle also includes a first track carrier and a first mounting... | 11/01/2011 |
| 7967087 | Suspension for a machine A machine is provided. The machine has a forward direction of travel and includes a frame, at least one lift arm, a first torsion axle assembly, an undercarriage, and an endless track. The lift arm is pivotally attached to the frame. The first torsion axle assembly ... | 06/28/2011 |
| 7806209 | Apparatus and method to reduce vibrations on a tracked work machine An apparatus and method for reducing vibrational effects of track chain assembly catenary hang is disclosed. A work machine includes a pair of track roller assemblies one positioned on each side of the work machine. The vibration reducing apparatus and method includ... | 10/05/2010 |
| 7798261 | Electrically driven track wheels for tracked vehicles An electrically driven wheel for a tracked vehicle which includes a driving track wheel with built in cogs and a brushless DC motor having a mounting shaft to connect the wheels to the tracked vehicle. The brushless DC motor is coupled within the driving track wheel... | 09/21/2010 |
| 7717201 | Undercarriage having shock absorption function Disclosed is an undercarriage having a shock absorption function, including a pair of roller frames facing each other, each roller frame having a plurality of vibration-proof rollers inside thereof, at a lower portion thereof, a main frame disposed between the rolle... | 05/18/2010 |
| 7708092 | Endless track suspension An endless track suspension is comprised of a suspension support beam having an idler wheel assembly connected to a respective one of opposed ends thereof. At least one of the idler wheel assemblies has an endless track binding mechanism. Support wheels are secured ... | 05/04/2010 |
| 7644788 | Tensioning and suspension system for a trailer A trailer that includes a belts that each encompass a front wheel and a rear wheel and have a ground engaging surface and a wheel engaging surface, the wheel engaging surface having lugs thereon for mating with the apertures in the front wheel and the rear wheel suc... | 01/12/2010 |
| 7641006 | Military vehicle with electric drive running gear system A military vehicle, e.g., tank, that includes a turret, a gun mounted on the turret, a plurality of belts, wherein each of the plurality of belts encompass a front wheel and a rear wheel to provide a positive belt drive system for rotating the belt, at least one sus... | 01/05/2010 |
| 7533741 | Swivel mounted track frame Track frame assemblies wherein one assembly provides a multi-section sub-frame that supports a series of idler wheel suspensions. Each section is mounted to pivot laterally from stub axles longitudinally secured to a drive frame. In another assembly, resilient bushi... | 05/19/2009 |
| 7516805 | Equalizer bar mounting arrangement An equalizer bar for a tracked vehicle is connected to the track roller frames via an arrangement comprising a pin which is swivel ably mounted to the equalizer bar and held rigidly by the track roller frame. The pin is positively held by the track roller frame, for... | 04/14/2009 |
| 7455131 | Suspension system for tracked vehicles A suspension system for a tracked vehicle that includes at least four suspension cylinders for suspending at least two track module frames to a chassis of the tracked vehicle to allow torsional flexing to accommodate terrain unevenness with significantly less terrai... | 11/25/2008 |
| 7395890 | Snowmobile track suspension A rear track suspension for a snowmobile having a single resilient element for biasing both the front and rear arms. The slide rail is permitted to pitch between first and second pitching constraints in response to terrain obstacles in a gradual manner as the motion... | 07/08/2008 |
| 7367418 | Snowmobile air box assembly The present invention is directed to an air box assembly for a snowmobile. The air box assembly is capable of being positioned frontward of the snowmobile engine, relative to a front end of the snowmobile. In this position, throttle noise being dampened by the air b... | 05/06/2008 |
| 7363994 | Wheeled platforms A wheeled platform 100 is disclosed, which is characterized by high mobility and reliability, and which can be used in a wide range of applications including transport and robotic devices. The wheeled platform 100 has fore and aft body portions 130,... | 04/29/2008 |
| 7343991 | Electrically driven track wheels for tracked vehicles An electrically driven wheel for a tracked vehicle which includes a driving track wheel with built in cogs and a brushless DC motor having a mounting shaft to connect the wheels to the tracked vehicle. The brushless DC motor is coupled within the driving track wheel... | 03/18/2008 |
| 7328529 | Mower convertible into a tracked implement and vice versa This invention relates to a mower and a tracked implement that convert from one to the other by coupling a mower unit or a tracked unit to a common drive unit. The drive unit is thus used in both products to provide cost savings in the purchase of the equipment. In ... | 02/12/2008 |
| 7328760 | Semi tracked-type working vehicle A semicrawler-type working vehicle is provided having a vehicle body (3), a front steering control wheel (7) arranged at a front side of the vehicle body, a drive shaft (26) and a pivot shaft (22) arranged at a rear side of the vehicle bo... | 02/12/2008 |
| 7322435 | Snowmobile suspension system To enable a rider to control in real time the type of ride he desires, a snowmobile is equipped with a suspension system that includes at least one fluid actuated device which can be adjusted in real time to control the relative distance between the body of the snow... | 01/29/2008 |
| 7293374 | Crawler frame for construction machine A crawler frame includes a center frame and right and left track frames disposed at right and left sides of the center frame so as to extend in a back and forth direction, wherein legs for connecting a central frame section of the center frame to the track frames ar... | 11/13/2007 |
| 7267414 | Suspension system, positive drive belt system and belt tensioning device for wheel and belt driven devices A track driven device having a suspension system, positive hydraulic braking system, positive drive belt system and belt tensioning system for an improved ride, reducing belt wear and belt failure. ... | 09/11/2007 |
| 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 |
| 7231993 | Drive track support with vibration isolation A track driven machine has a pair of track frames on opposite sides thereof, and each of the track frames has a pair of laterally extending arms fixed thereto. The arms are joined to a machine frame only through vibration isolating elastomeric blocks that carry comp... | 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 |
| 7200981 | Support wheel arrangement for agricultural working machine, and agricultural working machine provided therewith A supporting arrangement for an agricultural working machine with at least one receiving device for receiving an agricultural working device has at least one support wheel arrangeable in a region facing the agricultural working device, the at least one support wheel... | 04/10/2007 |
| 7201457 | Rubber crawler and crawler traveling equipment Rubber crawler equipment (1) capable of reducing the weight and cost of a rubber crawler, and providing a lightweight and fast drive for tires and crawlers, wherein core members (5) formed of plastic material instead of metal are embedded in a rubber c... | 04/10/2007 |
| 7201242 | 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... | 04/10/2007 |
| 7188915 | Suspension and drive mechanism for a multi-surface vehicle A tracked vehicle produces a pressure no more than 3 psi on the ground by increasing the number of contact points on the inner surface of the track. The stiffness of the track is also selected to minimize bowing between the idler wheels or rollers. The track is ther... | 03/13/2007 |
| 7156474 | Track and drive mechanism for a vehicle A tracked vehicle capable of traversing a variety of surfaces without damaging the surface traversed includes a track having an inner surface, an outer surface, and a pitch line between the inner surface and the outer surface. Driving lugs are attached to the inner ... | 01/02/2007 |
| 7137465 | Crawler device A crawler device for traversing in a confined environment, searching victims or inspecting defections, comprises an elongated flexible drive shaft extending along a central axis between a proximal end and a distal end, a motor operatively connected to the drive shaf... | 11/21/2006 |
| 7131508 | 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... | 11/07/2006 |
| 7121636 | Endless track for paving vehicles A drive track is for a wheel train for mobilizing a paving vehicle upon a ground surface, the wheel train including a drive wheel and a bogie wheel. The track includes an endless body disposable about the wheel train and having a driven portion engageable by the dri... | 10/17/2006 |
| 7070012 | Snowmobile suspension An improved rear suspension assembly is provided for snowmobiles, which includes a link assembly operatively connecting the rear suspension arm to a front cushion absorber so that the pivot movement of the rear suspension arm actuates the front shock absorber assemb... | 07/04/2006 |
| 7040426 | Suspension for a tracked vehicle The present invention relates generally to recreational vehicles. More particularly, the present invention relates to methods and apparatus for traversing challenging terrain with a recreational vehicle. A vehicle in accordance with an exemplary embodiment of the pr... | 05/09/2006 |
| 7017688 | Independent suspension for multi-use vehicle A half-track vehicle includes a frame, first and second beams having forward and rearward wheels attached thereto, and first and second suspension systems. The frame includes a first side and a second side, and the first suspension system suspends the first beam fro... | 03/28/2006 |
| 6962222 | Mobile agricultural machinery A mobile agricultural machine, particularly for use as a combine, which demonstrates improved operational movement and travel performance characteristics, and is capable of easily changing direction during operation, includes right and left travel crawlers, supporte... | 11/08/2005 |
| 6962221 | Mobile ice fishing shelter assembly A mobile ice fishing shelter assembly for permitting quick and easy movement of a mobile shelter designed to facilitate ice fishing. The mobile ice fishing shelter assembly is positionable on a vehicle having a seat portion and a drive assembly, and may comprise a s... | 11/08/2005 |
| 6959936 | Vehicle suspension system A vehicle suspension system couples an axle to a vehicle frame so that the axle pivots about a first location with respect to the frame when the axle has a first range of articulation. The axle pivots about a second location with respect to the frame extending later... | 11/01/2005 |
| 6945342 | Track drive undercarriage device, kit and method A track drive undercarriage device, a kit for the device, and a method of using the same are described attached to a chassis of a heavy construction work vehicle for operationally connected to a transmission and drive shaft of the construction vehicle. The device is... | 09/20/2005 |
