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| Number | Title | Issue Date |
| 7410220 | Apparatus for assembling a liner An apparatus for assembling a liner from a plurality of longitudinal sections of flexible material having longitudinal edges adapted to be joined one to another to form the liner includes a path means along which the longitudinal sections of flexible material can be... | 08/12/2008 |
| 7316458 | Ventilating wheel for snowmobile slide rail suspension system A ventilating wheel provides a plurality of angled vanes extending from a hub. The ventilating wheel secures to the slide rail of a snowmobile suspension system. An endless track extends over the underside of the slide rail. A Hyfax may secure to the slide rail inte... | 01/08/2008 |
| 7226136 | Snowmobile slide A slide rail assembly adapted for engaging a drive track of a snowmobile. The slide rail assembly comprises a rail adapted for engagement with a rear suspension system of the snowmobile, and aligned forward and rear slide portions disposed on a lower surface of the ... | 06/05/2007 |
| 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 |
| 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 |
| 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 |
| 7040436 | Snowmobile slide A snowmobile slide includes a slide member having specific guide members therein for guiding, supporting, and contacting single runner and multiple runner snowmobile skis. The guide members including pairs of raised vertical ribs and a groove. The vertical ribs defi... | 05/09/2006 |
| 6971466 | Torque compensating rear undercarriage for track driven vehicles This torque compensating track drive is designed to provide track drive vehicles with an undercarriage that distributes the weight of the vehicle over the greatest possible area and also ensures that as much of the drive track is in contact with the surface as possi... | 12/06/2005 |
| 6926108 | Snowmobile rear suspension system A rear suspension system for a snowmobile includes a plurality of adjacent closed-loop tracks disposed in a rear tunnel of the snowmobile. Each of the plurality of adjacent closed-loop tracks are rotatably driven by a drive system. One of a plurality of independent ... | 08/09/2005 |
| 6761236 | Reversible rear axle mount An axle mount device for mounting an axle to a snowmobile track suspension frame has a base portion and an adjuster portion. The base portion has an axis and a bore coincident with the axis. The adjuster portion is secured to the base portion asymmetrically with res... | 07/13/2004 |
| 6668951 | Robotic platform An articulated tracked vehicle that has a main section, which includes a main frame, and a forward section. The main frame has two sides and a front end, and includes a pair of parallel main tracks. Each main track includes a flexible continuous belt coup... | 12/30/2003 |
| 6619417 | Snowmobile slide rail system A slide rail system of a snowmobile vehicle includes a pair of substantially parallel elongated front slide rails, each front slide rail having a forward end and a rear end, the forward end pivotally connected to a chassis or a front drive axle of the sno... | 09/16/2003 |
| 6321864 | Snow vehicle track suspension An improved snow vehicle track suspension employing a force-distributing mechanism comprising a swingarm, a three-arm bell crank, a connecting linkage, and a telescoping limiter linkage. The force-distributing mechanism apportions cushioning force from a ... | 11/27/2001 |
| 6263991 | Snowmobile A extended movement rear suspension for a snowmobile. The suspension includes at least two elongated members of a substantially constant length coupled to the snowmobile frame and to an endless track guide rail assembly. The suspension keeps the guide rai... | 07/24/2001 |
| 6206124 | Adjustable rear suspension for a tracked vehicle An adjustable rear suspension system for a tracked vehicle comprises a slide frame for guiding a portion of the endless track, the slide frame having a pair of substantially parallel slide rails, the slide rails defining a longitudinal direction. The rear... | 03/27/2001 |
| 6155656 | Slide bar for a snowmobile track suspension system A slide bar for snowmobiles has sinusoidal grooves running lengthwise on the sliding surface that open at the aft end of the slide bar for drainage. The sinusoidal grooves retain packed snow accumulated during operation over snow-covered terrain, until th... | 12/05/2000 |
| 6113343 | Explosives disposal robot A robot especially adapted for use in hazardous environments, and particularly adapted for explosives disposal, includes a wheeled platform carrying a winder mechanism which ensures that the remote control cable will not be fouled by the robot or its atta... | 09/05/2000 |
| 6095275 | Conversion system for all terrain vehicles A conversion system for converting an all terrain vehicle (ATV) for use in snow and in other adverse condition, the system including an endless track assembly. Endless track assemblies are comprised of a drive cog mounted on the rear axle, having teeth fo... | 08/01/2000 |
| 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 |
| 5947217 | Track laying vehicle A track vehicle that uses a sliding rail type suspension, which is mounted on the outside of the vehicle frame. A supporting frame is used to support the outer edge of the track. The use of this type of suspension allows the vehicle to operate at speeds i... | 09/07/1999 |
| 5944134 | 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... | 08/31/1999 |
| 5904217 | Snowmobile First rear swing arms are pivotably supported at their front ends to a drive shaft on which drive wheels are mounted. The rear ends of the first rear swing arms are pivotably supported through a shaft to the front ends of side rails, and first idlers are ... | 05/18/1999 |
| 5899164 | Tracked, amphibious marsh vehicle with improved track and drive arrangement An improved marsh craft construction uses spaced apart pontoons with endless belts (e.g.,. rubber) that encircle the pontoons and ride upon a rail system. Lugs are fastened to the belts for sliding against the rails. Drive wheels have cylindrical pins tha... | 05/04/1999 |
| 5860486 | Rear suspension system for a land vehicle A rear suspension system for a land vehicle comprising a single generally centrally mounted structure in a middle portion of the rear suspension system. The suspension system comprises a pair of inclined primary suspension means, and a pair of inclined pr... | 01/19/1999 |
| 5839802 | Light weight track system for tracked vehicle A light weight track system for a buoyant amphibious vehicle, the vehicle having two pontoons, the pontoons having a flat horizontal top surface and a flat horizontal bottom surface, each end of the flat horizontal top surface and the flat horizontal bott... | 11/24/1998 |
| 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 |
| 5571275 | Wear blade for snowmobile endless track suspension An improved wear blade which slidingly engages an endless track of a snowmobile, and presses the endless track against the ground, has low friction, is highly wear resistant, and comprises polytetrafluoroethylene (PTFE), and one or more of carbon, graphit... | 11/05/1996 |
| 5277266 | Snow tiller to help cool the engine and lubricate the track of a snowmobile A snow tilling implement when mounted on a snowmobile and in operating position with the snowmobile in motion digs into the snow and sprays broken up snow on the heat exchanger, track, and slide rail on the underneath side of the snowmobile to cool and lu... | 01/11/1994 |
| 5020614 | Traction system A vehicle having drive wheels subject to significant vertical movement is equipped with an endless track system that includes rollers mounted on the main frame ahead of the drive wheels, and track belts extending around the rollers and the main drive whee... | 06/04/1991 |
| 4699229 | Endless articulated steel band vehicle for off-road services An off-road vehicle is equipped with an endless articulated steel band drive system including a drive wheel, a plurality of idle wheels and an endless belt extending around the drive wheel and the idle wheel. A back slider plate extends along the inner su... | 10/13/1987 |
| 4673050 | Fluid-operated transporting crawler-type track In a crawler-type track, an endless flexible belt is stretched over a stator which includes fluid-receiving pressure-tight cells and is formed with a central fluid collecting tank connected to a revolving pump. The cells of the stator are supplied with pr... | 06/16/1987 |
| 4661011 | Asphalt compaction machine A novel asphalt compacting machine of the type having a chassis, a drive roller, e.g. at the rear, and a steerable rolling compaction mechanism, e.g., at the front, is provided herein. The improvement resides in a novel front, preferably steerable, rollin... | 04/28/1987 |
| 4596298 | Crawler vehicles A crawler driven vehicle is utilized in a dangerous environment and remotely controlled and operated. The crawler vehicle comprises a vehicle body, four arcuate front and rear crawler assemblies respectively attached to the bilateral sides of the vehicle ... | 06/24/1986 |
| 4462480 | Snowmobile rear suspension unit An improved suspension system for the drive track of a snowmobile that offers wide amounts of suspension travel and yet is compact enough to be positioned internally of the track. The suspension system permits the use of a tubular shock absorber and a sur... | 07/31/1984 |
| 4407386 | Snowmobile suspension unit An improved suspension system for the drive track of a snowmobile that offers wide amounts of suspension travel and yet is compact enough to be positioned internally of the track. The suspension system permits the use of a tubular shock absorber and a sur... | 10/04/1983 |
| 4314618 | Suspension mechanism for tracked vehicles A vehicle having an endless track which is in driving engagement at the front end portion with an engine-driven wheel. A slide rail assembly is provided for engagement with the lower run of the endless track. The suspension mechanism includes a suspension... | 02/09/1982 |
| 4305476 | Constant track tension system for snowmobiles A system for maintaining substantially uniform tension in an endless track for a track driven vehicle having a vehicle body and a suspension assembly and in which a tensioned endless track passes around end support and guide members, one of said end suppo... | 12/15/1981 |
| 4301884 | Track suspension and drive for snowmobile A snowmobile track suspension subframe of the slide rail type carries a track drive axle at its forward end. Such axle mounts both the track drive sprockets and the driven sprocket of a track drive chain assembly so that the entire track suspension subfra... | 11/24/1981 |
| 4257652 | Device for transporting materials across fragile structures A device having a frame with a supporting platform, a pair of substantially cylindrical assemblies mounted for rotational movement on the frame about substantially parallel axes of rotation, a resilient substantially flat belt extended about the assemblie... | 03/24/1981 |
| 4222453 | Rear suspension system for a snowmobile An improved rear suspension for a snowmobile. The improved rear suspension includes a first link and a second link, each having a first end and a second end. An extensible, shock mounted link also has a first end and a second end. The first and second lin... | 09/16/1980 |
