Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7425044 | Guide horn structure for endless track of high speed multi-terrain vehicles This invention relates to endless tracks and systems used to propel 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, more particularly, t... | 09/16/2008 |
| 7367637 | Endless track for high speed multi-terrain vehicles The track design for use with a tracked vehicle includes a cantilever cut made down into the outward side of each tread just outboard of the position where the inside of the track contacts the outboard edge of the tread of the outer wheel of each pair of track-suppo... | 05/06/2008 |
| 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 |
| 7258405 | Tire track A unitary flexible track for converting a wheeled vehicle into a tracked vehicle, the track being provided for mounting in longitudinal direction around at least two successive vehicle tire-wheel assemblies in movement direction of the vehicle, the track having an i... | 08/21/2007 |
| 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 |
| 7114788 | Angled traction lugs for endless band This invention refers to the traction lugs of reinforced elastomeric endless traction bands, and more particularly to those which are used on heavy vehicles like defense vehicles or for skid steer vehicles. More specifically, the invention relates to traction lugs w... | 10/03/2006 |
| 7090312 | Endless track for high speed multi-terrain vehicles This invention relates to endless tracks and systems used to propel 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, more particularly, t... | 08/15/2006 |
| 6984006 | Elastic flat tread The present invention is an elastic flat tread which can prevent an elastic solid from cracking even if the vehicle runs on a protruding object during traveling. For this purpose, the elastic flat tread is provided with any core (1, 11, 115) of a core (1, ... | 01/10/2006 |
| 6932442 | Elastic-bodied crawler An elastic-bodied crawler, in which damages, such as local wear, coming-off of driven projections and the like in use, are prevented from being brought about, and frictional resistance is decreased at engaging portions to provide for durability, comprises a body wit... | 08/23/2005 |
| 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 |
| 6598947 | Wheelchair wheel cover A cover suitable for use in conjunction with a wheelchair wheel. The cover includes a durable nylon fabric and includes a barrier and a cover portion, the barrier being interposed between an inner surface of the cover portion and the tread and sidewalls o... | 07/29/2003 |
| 6588862 | Rubber crawler track This invention relates to a molded crawler track comprising metallic core bars set in an endless rubber belt. The core bars comprise first and second wings (2, 4) extending in a transverse direction to the axis of the track and, between the wings, a sproc... | 07/08/2003 |
| 6474756 | Rubber crawler belt A rubber crawler belt having a pattern of a lug provided on an outer circumferential side of a rubber belt has a central lug portion provided to continuously extend around a center portion in a width direction of the outer circumference of the rubber belt... | 11/05/2002 |
| 6450593 | Elastic crawler shoe for discharging snow With the objective of providing an elastic crawler shoe which is capable of discharging snow which gets into a space between crawler belt links before a packing phenomenon occurs, a projection which is made of an elastic material is provided so as to prot... | 09/17/2002 |
| 6422666 | Elastic crawler The present invention provides an elastic crawler having an improved flexing properties in which arrangement of lugs are improved so as to prevent deterioration of the flexing properties due to rigidity of a crawler body increased by providing lugs. The c... | 07/23/2002 |
| 6196646 | Endless drive track system with reinforcing brace and method An endless drive track system for use with a tracked vehicle. The endless drive track system includes a planetary drive system having drive rollers, a plurality of roller wheels, and an endless track with a reinforcing brace embedded within the endless tr... | 03/06/2001 |
| 6193335 | Endless drive track with improved drive lug configuration An endless drive track system for use with a tracked vehicle includes a planetary drive system having drive rollers, a plurality of roller wheels, an endless track having an interior surface and a plurality of drive lugs attached to the interior surface. ... | 02/27/2001 |
| 6176557 | Inner periphery driving type rubber crawler An inner periphery driving type rubber crawler comprises: a plurality of core metals buried in series in the rubber crawler along the longitudinal direction thereof such that the longer sides of each core metal are in parallel with the transverse directio... | 01/23/2001 |
| 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 |
| 5997110 | Core metal for rubber crawler A metal core for a rubber crawler, wherein an engaging part with a sprocket is provided at the center thereof, wherein horn members are provided at the outsides of the engaging part, wherein right and left wing parts are provided at the outsides of the ho... | 12/07/1999 |
| 5632537 | Crawler belt for crawler motor vehicle A crawler belt for use on a crawler motor vehicle has an elongate belt body drivable in a predetermined direction, and a plurality of ridges mounted on a ground contact side of the belt body, each of the ridges having at least one sipe defined in a free e... | 05/27/1997 |
| 5295741 | Core bar for rubber track and rubber track traveling device A core bar for a rubber track includes wings on both sides to be embedded in an elastic member of the rubber track, a bridging center for connecting the wings, and driving protrusions provided on both sides of the bridging center and projecting from the i... | 03/22/1994 |
