Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 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 |
| 7128378 | Coreless rubber crawler The object of the present invention is to provide a coreless rubber which ensures running stability by compensating shift (deviation) in the width direction even if prepared by combination of usual rollers, and which is easily and in low cost prepared by adoption of... | 10/31/2006 |
| 7083242 | Endless flexible track with reinforcing layers for all-terrain vehicles An endless flexible belt track produced from an elastomer comprises a steel cable (30) spirally wound in the thickness of the belt (12) and outer layers embedded in the thickness of the belt and formed successively from the turns (34) of the cab... | 08/01/2006 |
| 4944353 | Agricultural machine An agricultural machine comprises a self-propelled chassis (1) and an arrangement for displacement of the working member (9) over the field surface, comprising a hermetic chamber (3) with a port (4), a source (2) of a fluid agent pumped into the chamber (... | 07/31/1990 |
| 4846092 | Amphibious vehicle with improved cleat design An amphibious vehicle is comprised of pontoons, a drive system and endless tracks. The endless tracks are comprised of drive chains and hollow drive cleats in the shape of truncated pyramids.... | 07/11/1989 |
| 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 |
| 4762377 | Mattress construction for pneumatic mattress track system A mattress construction for a pneumatic mattress track system, through which the mattress can withstand higher pulling forces, the transmission between drive wheels and mattress be made more efficient and the whole system made lighter.... | 08/09/1988 |
| 4715668 | Pneumatic mattress track system for vehicles Pneumatic mattress track system to be used as a construction element in vehicles. A soft air filled mattress formed for instance by mattress bags (5) is automatically rolled out and serves as running surface and means of propulsion. The hull (1) of the sy... | 12/29/1987 |
| 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 |
| 4567957 | Air pallet with endless belt interface An endless belt operatively mounted beneath a load carrying backing member has a lower run moving across a generally planar fixed support surface, in frictional contact therewith. The belt may comprise a woven belt with reinforcing threads. A plenum chamb... | 02/04/1986 |
| 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 |
| 4502736 | Vehicle with pneumatic suspension A relatively low-cost, lightweight vehicle has a traction belt drive system, a force-spreading air bag suspension, and operational efficiency features. The traction belt cooperates with track wheel assemblies on each side of the vehicle to spread the susp... | 03/05/1985 |
| 4429898 | Suspension assembly for seismic exploration vehicle An improved suspension assembly for a seismic exploration vehicle having a substantially rigid main frame supported and moved by track assemblies disposed along opposing sides of the frame. The suspension assembly includes two bogies which engage the inne... | 02/07/1984 |
| 4408646 | Wheeled vehicle support apparatus A wheeled vehicle flotation augmentation device is disclosed herein having at least elongated segments releasably connected together in a continuous and endless series of track block guides so as to form a circular tread about the periphery of a single wh... | 10/11/1983 |
| 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 |
| 4227748 | Track tensioning apparatus A continuous track assembly (12) has a frame (16) and a first element (18) pivotally connected to the frame (16). A second element (20) is pivotally connected to the first element (18). Each element (18,20) has a rotatable wheel (22,24) about both of whic... | 10/14/1980 |
| 4203633 | Reduced noise producing idler wheel A high speed tracked vehicle has a sprocket extending from each side thereof coupled to an engine through which driving power is supplied to each of a pair of driving tracks. The driving tracks are supported on either side of the vehicle hull by an idler ... | 05/20/1980 |
| 4102423 | Ground traction devices A ground traction device is disclosed which comprises ground engaging members including first and second parts, the parts being mounted for rotation on a fixed axis and being rotationally offset with respect to each other about the axis. The peripheral su... | 07/25/1978 |
| 4102292 | Amphibious vehicle An amphibious vehicle for travel in water or on land with transversely spaced power driven buoyant drums fore and aft of the vehicle and intermediate buoyant idler drums likewise transversely spaced around which are reeved spaced flexible endless belt tra... | 07/25/1978 |
| 4093318 | Endless drive system An endless drive system suitable for use as an endless belt, an endless chain drive or an endless track vehicle drive system. The endless drive system includes endless drive sections, with sloped sides to shed dirt or other foreign objects, and fasten piv... | 06/06/1978 |
| 4056288 | Endless track for crawler vehicles An endless track for a track-type vehicle such as a crawler vehicle or the like, including an endless, tire-like, flexible carcass including a fluid receiving chamber that is at least partially collapsible, the chamber being defined by at least two cells ... | 11/01/1977 |
| 3999585 | Pneumatic tire having breaker structure In a pneumatic tire of the type manufactured with the carcass in the final formed condition of a preselected configuration, the tire is provided with a plurality of breaker plies which are positioned radially from the circumferential cord belt. The breake... | 12/28/1976 |
| 3950038 | Fluid bearing track device A combination of a fluid bearing having the capability of lifting large loads off of a smooth surface so that they may be easily moved, with a track device having a transversely ribbed continuous belt, the belt being supported by two rollers. The fluid be... | 04/13/1976 |
