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| Number | Title | Issue Date |
| 8075069 | Drive tumbler and track drive for mobile vehicles, including lift cranes A combination of a drive tumbler and a track includes a track made of a plurality of connected track shoes and a plurality of driven surfaces. The track is wrapped around the drive tumbler so that a plurality of the shoes are in contact with the drive tumbler. The d... | 12/13/2011 |
| 8070240 | Sprocketed drive assembly for track-type machine A sprocket assembly for a track-type machine comprises a plurality of teeth, radially-disposed about a center of the sprocket assembly, each of the plurality of teeth comprising opposing tooth flanks, wherein successive pairs of teeth defines a substantially concave... | 12/06/2011 |
| 8033619 | Endless track An elastomeric endless track for use on tracked vehicles or with wheel replacing traction assemblies is provided. The track generally comprises a ground-engaging outer surface provided with traction lugs generally disposed longitudinally according to a traction lug ... | 10/11/2011 |
| 7823990 | Sprocketed idler assembly A sprocketed idler for a machine comprises a plurality of teeth radially disposed about an idler having a substantially circular cross section. Each of the plurality of teeth includes at least one tooth flank having a substantially uniform slope, wherein a distance ... | 11/02/2010 |
| 7658455 | Traction enhancement device An enhanced traction device for use with a vehicle having dual tandem wheels includes a series of generally parallel track pads, each track pad having an alignment portion and a traction portion defining first and second ends. Each traction portion includes an inner... | 02/09/2010 |
| 7416266 | Sprocket wheel for heavy high speed multi-terrain vehicles This invention relates to a sprocket wheel used with endless tracks used to propel heavy track laying vehicles [i.e., vehicles which use endless tracks rather than tires to contact the terrain over which they are driven, e.g., tractors, tanks, bulldozers, etc.] and,... | 08/26/2008 |
| 7219968 | Crawler system and crawler link structure There is provided a crawler system and a crawler link structure which can be easily assembled and is superior in durability and provided at low cost. The crawler system comprises a crawler 2 in which pairs of opposed right and left links 1a and ... | 05/22/2007 |
| 7198337 | Wheel for belted track vehicles A wheel for belted track vehicles includes a hub with an upright central disc. A series of individually cast and machined segments are mounted to the disc in side-by-side relation about the periphery of both sides of the disc. Each segment takes the shape of a trunc... | 04/03/2007 |
| 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 |
| 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 |
| 7052424 | Cantilever tooth sprocket A drive sprocket assembly for driving an endless chain assembly for propelling a machine has a hub portion and flexible cantilever teeth in which each tooth is separately deflectable upon impact by a bushing of the endless chain assembly. The flexibility of each too... | 05/30/2006 |
| 7032983 | Silent and reduced vibration chainwheel A silent and reduced vibration chainwheel includes a disk, multiple teeth and an energy absorber. The disk has an outer edge, two opposite sides and at least one recess. The teeth are formed radially at and extend out from the outer edge of the disk. The energy abso... | 04/25/2006 |
| 6905182 | Elastic crawler An elastic crawler has a crawler body formed like an endless belt out of an elastic material, a plurality of driving projections provided on an inner circumferential surface of the crawler body with a predetermined pitch in the circumferential direction thereof, and... | 06/14/2005 |
| 6890042 | Crawler traveling apparatus A crawler traveling apparatus includes a rubber crawler belt having a plurality of driving projections formed with a predetermined peripheral pitch on an inner peripheral face of the belt, a drive wheel rotatable when engaged with the driving projections of the craw... | 05/10/2005 |
| 6848757 | Elastic crawler traveling apparatus and sprocket for crawler belt used in the same An elastic crawler traveling apparatus having an elastic crawler in a shape of an endless belt, a sprocket for a crawler belt arranged to be brought into contact with an inner face of the elastic crawler, a driven wheel, and a rolling wheel, the elastic crawler incl... | 02/01/2005 |
| 6843540 | Spur wheel for a chain drive assembly A spur wheel for the chain drive assembly of a tracked vehicle on which the guide elements of a chain roll during the operation of the chain drive assembly is provided. Certain parts of the spur teeth which come in contact with the rolling area of the guide elements... | 01/18/2005 |
| 6824229 | Nestable guide lug for a traction band This invention relates to the guide lugs of reinforced elastomeric endless traction bands, which are used on heavy vehicles like defence vehicles. More specifically, the invention relates to guide lugs which are partly nested into each other around the curved portio... | 11/30/2004 |
| 6733092 | Travel driving apparatus for a track-type vehicle A travel driving apparatus for a track-type earthmoving machine is provided which can reduce abrasion wear of a sprocket and a bushing and which enables easy replacement of worn members. A contact member is detachably mounted to an opposing surface of a track shoe t... | 05/11/2004 |
| 6698850 | Elastic crawler traveling apparatus and sprocket for crawler belt used in the same An elastic crawler traveling apparatus having an elastic crawler in a shape of an endless belt, a sprocket for a crawler belt arranged to be brought into contact with an inner face of the elastic crawler, a driven wheel, and a rolling wheel, the elastic c... | 03/02/2004 |
| 6659573 | Wheel and track for a crawler vehicle undercarriage A crawler undercarriage mechanism includes a plurality of running rollers, and at least one drive sprocket wheel which is provided with chain teeth, and has a running tread and wheel flanges on both sides. An endless chain with individual chain links whic... | 12/09/2003 |
| 6655757 | Head and tail sprocket assemblies for a marsh excavator A head sprocket assembly and sprocketless tail roller assembly for a pontoon track drive system wherein the sprocket assembly and tail roller is fitted with a plurality of support rings for straightening the track's elongated cleats attached to a pluralit... | 12/02/2003 |
| 6652044 | Rubber crawler A rubber crawler has a core of generally parallelepiped blocks (5) each having two longitudinally spaced through holes (9) in the lower surface region and bars (4) inserted in the through holes (9), the generally parallelepiped blocks (5) being arranged i... | 11/25/2003 |
| 6652043 | Reduced sound transmitting idler for track-type vehicles An idler for supporting the forward end of an endless track of a track-type tractor has an endless chain resiliently supported on an outer flange of the idler hub. An outer surface of the chain provides a substantially continuous bearing surface for suppo... | 11/25/2003 |
| 6543862 | Drive wheel for track apparatus A drive wheel is provided for mounting on a rotatable axle of a vehicle for driving a continuous flexible track. The flexible track includes an inner surface having a plurality of lugs and terminating at terminal surfaces. The drive wheel includes a centr... | 04/08/2003 |
| 6536854 | Drive wheel for track apparatus A drive wheel engaged with flexible track of track apparatus mountable on a vehicle axle, the drive wheel including a peripheral portion which, between radially-extending drive members, has outwardly-facing lug-engagement surfaces in position for engageme... | 03/25/2003 |
| 6536853 | Arrangement for supporting a track chain of a track type work machine An arrangement for supporting a track chain having a track link, a first bushing mechanically coupled to the track link, and a second bushing mechanically coupled to the track link. The first bushing has a first center point C1 defined thereon.... | 03/25/2003 |
| 6520602 | Guide for an endless chain of a track-type undercarriage A guide for a multi-link endless chain of a track-type undercarriage, especially for cranes, has an undercarriage support, at least one drive sprocket wheel provided with chain teeth, possibly an idler, and several track rollers. Each chain link of the en... | 02/18/2003 |
| 6508524 | Drive sprocket wheel A drive sprocket for an endless chain on a track-type undercarriage includes a toothed wheel having a plurality of circumferential teeth extending from a root circle. A pair of mounting rings fixed to opposite axial sides of the wheel support a respective... | 01/21/2003 |
| 6485115 | Drive sprocket which has lubricated pre-assembled cartridge assembly attached thereto The cartridge assembly being lubricated and includes a bushing rotatably mounted on a pin with a passageway to receive lubrication oil in the pin. The end portion of the pin includes first and second collars having a groove to receive a sealing arrangemen... | 11/26/2002 |
| 6416142 | Reduced sound transmitting idler for track-type vehicles An idler for supporting the forward end of an endless track of a track-type tractor has an endless chain resiliently supported on an outer flange of the idler hub. An outer surface of the chain provides a substantially continuous bearing surface for suppo... | 07/09/2002 |
| 6386654 | Protective cover for guide blocks A protective cover member for a guide block on a drive belt includes an inner portion shaped to substantially conform to at least a portion of the outer surface of the guide block. The cover member is attached to the guide block by bonding the cover membe... | 05/14/2002 |
| 6250726 | Sprocketed idler for a track assembly In the operation of conventional track assemblies it is common for an idler to have a pair of laterally extending wear treads to engage and support the wear rails defined by the track links of the track assembly as it is driven thereabout. This ultimately... | 06/26/2001 |
| 6139121 | Positive drive rubber track A positive drive endless rubber track system for the undercarriage of a vehicle, the rubber track including spaced guide lugs projecting inwardly therefrom, the undercarriage including a drive wheel having spaced sprocket pins thereon, idler wheels, and t... | 10/31/2000 |
| 6131833 | Tracked drive tower for a self-propelled irrigation system A drive tower for a self-propelled irrigation system is described which is of the track type. The drive tower includes an elongated frame having opposite ends. A drive pulley is mounted at one end of the frame while a tail pulley is mounted at the other e... | 10/17/2000 |
| 6123399 | Mobile construction vehicle driven by track assemblies using continuous elastomeric belts A mobile construction vehicle has a pair of parallel first and second track assemblies. Each track assembly has a continuous drive belt with a plurality of teeth thereon, driven by a drive wheel with a plurality of lugs thereon. The drive belt teeth and d... | 09/26/2000 |
| 6074024 | Guide wheel for flexible track of a track system A guide wheel for a track apparatus is provided. The guide wheel includes a central hub rotatably mounted to a frame of a track apparatus. A first guide wall extends radially from the central hub and terminates at an outer edge. A second guide wall also e... | 06/13/2000 |
| 6074025 | Track apparatus incorporating cantilever mounted wheels A track apparatus having a frame is provided. The track apparatus is mountable on a rotatable axle of a vehicle and includes a continuous flexible track and a drive wheel mountable to the rotatable axle of the vehicle for rotational movement therewith. Th... | 06/13/2000 |
| 6068353 | Track apparatus incorporating non-pneumatic wheels A track apparatus is provided for mounting on a rotatable axle of a vehicle. The track apparatus includes a flexible track having an upper length and a ground-engaging lower length. A drive wheel is mountable to the rotatable axle so as to drive the flexi... | 05/30/2000 |
| 6062661 | Track system drive wheel for agricultural implements A drive wheel mounted on a rotatable axle of a vehicle is provided for driving a continuous flexible track. The drive wheel includes a central hub mountable on the axle for rotational movement therewith. First and second rim walls extend radially from the... | 05/16/2000 |
| 6062327 | Tracked-vehicle drive A tracked-vehicle drive has a wheel rotatably driven about an axis and having an outer surface, an endless traction element spanned over and frictionally engaging the wheel so as to be advanced thereby when the wheel rotates and having an inner face forme... | 05/16/2000 |
