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| Number | Title | Issue Date |
| 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 |
| 7210750 | Crawler belt link grinding system and crawler structure Vibration or the like is prevented for long-term use by normalizing, with operation continuing, a tread of a crawler belt link through grinding in an early stage where uneven wear such as corrugated wear occurs. With a crawler belt of a crawler vehicle wound, an abr... | 05/01/2007 |
| 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 |
| 6921304 | Amphibious vehicle The amphibious vehicle is a motorized vehicle capable of travel on land as well as in the water. The amphibious vehicle has a boat-like hull, and a caterpillar track assembly mounted along each side by hinges. The tracks are arranged so that they can be rotated betw... | 07/26/2005 |
| 6367827 | Caterpillar board designed in particular for use on grass slopes The proposed crawler-mounted board (1) is specifically for the purpose of riding over grass or lawn slopes. It features a crawler unit which consists of two slightly concave-curved undercarriage tracks (12), the tracks being connected to one another by fo... | 04/09/2002 |
| 6318484 | Tracked suspension A tracked suspension for a tractor or other work vehicle is disclosed having an endless belt, a belt tensioner, a drive wheel, and a plurality of idler wheels mounted to a suspension frame or idler carriage, the assembly being arranged such that the belt ... | 11/20/2001 |
| 6273530 | Toe-in/toe-out adjustment mechanism The adjustment mechanism of the present invention is mounted to a frame and comprises an alignment cam that is pivotally mounted to the frame by a tension link pivot pin. The alignment cam is provided with an actuating arm that is coupled to a longitudina... | 08/14/2001 |
| 6260465 | Tracked vehicle A tracked vehicle has a driven track suspension on each side of the hull, whereby the track suspension and the hull are connected by means of a vibration damping material. The track suspension is mounted on a U-shaped bridge element with lateral track sup... | 07/17/2001 |
| 6164399 | Track-type carriage system for heavy vehicles The present invention provides a track-type carriage system for heavy vehicles, and, in the preferred embodiment, a track-type carriage system for an articulated steering seismic vibrator vehicle. The carriage system consists of four track modules, two fo... | 12/26/2000 |
| 6132133 | Crawler type vibratory compacting machine A crawler type vibratory compacting machine of the invention compacts the ground from a surface layer to a deep layer with high efficiency. The crawler type vibratory compacting machine comprises: a triangular crawler unit which includes one wide track (3... | 10/17/2000 |
| 5941326 | Guide rail for a crawler track A crawler track guide rail having an upper elongated surface engagable with the shoes of a crawler track, a lower surface engagable with a crawler track support frame, and a foot which extends downward into the frame to transfer load resulting from the en... | 08/24/1999 |
| 5881834 | Long travel suspension for tracked vehicle A snowmobile construction comprising a body frame and having slide rails suspended from the body frame through a front and rear suspension arm, and an endless track which runs under tension upon a drive and a plurality of driven wheels rotatably borne on ... | 03/16/1999 |
| 5738361 | Snow bicycle The snow bicycle comprises a main frame similar to the one used on a conventional bicycle. It features a rear drive wheel assembly removably connected to the main frame. The rear drive wheel assembly comprises two longitudinally-oriented wheels operativel... | 04/14/1998 |
| 5692579 | Adjustable snowmobile track suspension A suspension system mountable to the chassis of a snowmobile and about which an endless track is carried. The suspension includes a slide frame for engagement with a lower portion of the endless track and one or more springs for urging the slide frame dow... | 12/02/1997 |
| 5370198 | Long travel suspension for tracked vehicle A snowmobile construction comprising a body frame and having slide rails suspended from the body frame through a front and rear suspension arm, and an endless track which runs under tension upon a drive and a plurality of driven wheels rotatably borne on ... | 12/06/1994 |
| 4825969 | Wide track vehicle A wide track vehicle with improved skid steering by having a chassis (1) supported upon two independently drivable tracks (2) by side support wheels (3) engaged with each track adjacent the outer edges only. Downwardly projecting rubbing strips (11, 12, 1... | 05/02/1989 |
| 4826260 | Pneumatic system for endless track vehicles An air-adjustable shock absorber is pivotally connected at its ends to first arms of a front end of a back crank arm system, which are pivotally mounted to the vehicle chassis at the front and back of the same between the upper and lower runs of the endle... | 05/02/1989 |
| 4821824 | Auxiliary traction system An attachment for tractors is mounted on the tractor frame, and provides an endless track system for supporting and driving the tractor through power supplied with chains engaging sprockets secured to the conventional drive wheels. The position of the tra... | 04/18/1989 |
| 4778019 | Dynamic seals for vehicle air suspensions A sealed, air-containing vehicle suspension assembly. The assembly includes an endless track unit trained over a pair of wheel units each supported by the end portion of an axle, a pair of side plates, and a pair of dynamic seal assemblies. The dynamic se... | 10/18/1988 |
| 4530545 | Segmented air-track apparatus A buoyant-wheeled vehicle for operation over difficult terrain utilizing low ground pressure supports combined in a crawler configuration. A plurality of individual air-pressurized, inflatable casing units are interconnected to each other and supported fo... | 07/23/1985 |
| 4448273 | Endless track attachment for a vehicle A shaft 12 is secured to and is rotatable with a wheel hub of a vehicle. A sprocket wheel 22 is secured to and rotates with the shaft 12 and has evenly spaced apart, tooth-receiving sockets 28 at its periphery. The shaft 12 is mounted on the upper portion... | 05/15/1984 |
| 4402555 | Track-type vehicle undercarriage A track-type vehicle undercarriage comprising a track frame, a carrier rail mounted on the track frame, a track rail fixedly secured to the track frame underneath thereof, a recoil device mounted on the track frame, a support member fixedly connected to t... | 09/06/1983 |
| 4283094 | Air suspension system for vehicle track An air track device employing an air cushion principle to reduce ground pressure of a vehicle such as a tandem dual, utilizing an endless belt for operative connection to the tandem dual wheels and maintained at a predetermined internal pressure. The endl... | 08/11/1981 |
| 4278302 | Grouser bar track assembly for snowmobile A grouser bar track assembly for a snowmobile that includes a central and two outer continuous belt members are spaced apart in a direction transverse to the length of the belts so as to define a pair of parallel grooves extending around the assembly. The... | 07/14/1981 |
| 4232911 | Carriage with articulated track A machine carriage, for example for a mine roof support, has a beam with rounded ends around which an articulated track runs in a guide path which defines lateral clearance at each side of the track on the straight part of the path. The track is guided wi... | 11/11/1980 |
| 4129990 | Advancing support An advancing support for providing a continuous propping, particularly for providing a continuous propping of mine galleries or like passageways, comprising at least two carriages for articulated tracks, each of said carriages including a beam having roun... | 12/19/1978 |
| 4120372 | Joints Support bearing to receive the ends of a crawler front traverse for fastening to the track roller frame, the bearing support comprising a pin with ball joint arranged in a completely sealed housing and forming a self-contained pre-fabricated unit which ac... | 10/17/1978 |
| 4086974 | Chassis for vehicle A chassis for a vehicle has two parallel longitudinal side members each connected at two spaced locations to a transverse frame; the transverse frame is connected at two spaced locations to each longitudinal side member by a swivel joint at each respectiv... | 05/02/1978 |
| 4056289 | Occupant propelled tread vehicle An amusement device comprising a closed loop formed of a plurality of hingedly connected slats connected at facing edges to permit a user to walk along the top of the loop which moves in an opposite direction or to move the vehicle from inside the loop; a... | 11/01/1977 |
| 4014400 | Mounting arrangement for detachably coupling a vehicle frame to a ground-engaging undercarriage A vehicle frame to undercarriage mounting arrangement is disclosed including a vehicle frame having a member with a substantially upstanding planar bearing surface thereon, an undercarriage for supporting the frame including a substantially upstanding pla... | 03/29/1977 |
| 4011919 | Tireroller A vehicle comprising: a) a conventional body with at least 3 pairs of rolls mounted on horizontal axles, which are distributed over the periphery of opposite sides of the body and connected thereto; b) a pair of annular, elastically deformable running tir... | 03/15/1977 |
| 3974891 | Crawler vehicle A crawler vehicle, e.g. a drill rig, has a main frame that is carried by two crawler assemblies having frames that are journal-mounted to the main frame. A transverse pivotable beam is coupled between the crawler frames by means of journal bearings that a... | 08/17/1976 |