| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 305129000 |
With roller support contacting lower track run
| 74 |
| 305125000 |
Including end wheel support for movement to maintain track tension
| 7 |
| 305127000 |
Including elongated slide or frame support | 3 |
| 20130119753 | Track System with Overlapping Wheel Tandem Frames - A track system configured to be mounted to a vehicle comprises a drive wheel, a frame assembly, front and rear idler wheels respectively pivotally mounted at the front and rear extremities of the track system, road wheels pivotally mounted along the length of the track system, between the front and rear idler wheels, and an endless traction band disposed about the drive wheel, the idler wheels and the road wheels. The idler wheels and the road wheels are pivotally mounted on tandem frames such that adjacent tandem frames are overlapping. The tandem frames are pivotally mounted to the frame assembly via longitudinally spaced pivoting points. | 05-16-2013 |
| 20090008990 | Rail slides for track suspension systems - A rail slide for a slide rail suspension system in a vehicle having an endless track, the rail slide having a sliding surface for contacting the endless track, the sliding surface containing one or more grooves aligned at an angle with respect to a longitudinal axis of the rail slide and containing a low friction insert material therein. | 01-08-2009 |
| 20130009457 | PREASSEMBLED TRACTION MECHANISM DRIVE - A preassembled traction mechanism drive having at least two drive wheels ( | 01-10-2013 |
| 305126000 |
Intermediate support includes wheel contacting upper and lower track runs | 1 |
| 20100231034 | TRACKED VEHICLE - The invention relates to a crawler vehicle having a chain drive with two closed chains ( | 09-16-2010 |
| Entries |
| Document | Title | Date |
|---|
| 20090021073 | Crawler Traction Device - A crawler traction device for a crawler vehicle, in particular a tractor, the device having a carriage, a drive sprocket rotating about a first axis, an idler wheel rotating about a second axis parallel to the first axis. The track is looped about the drive sprocket and the idler wheel and meshes with the drive sprocket along a meshing arc. The traction device has a noise and vibration damping device having an auxiliary roller which rotates about a third axis parallel to the first axis and is eccentric with respect to the drive sprocket as well as smaller in diameter than the drive sprocket. The noise and vibration damping device only cooperates with the track along a portion of the track located, in use, immediately upstream from the meshing arc and interposed between the auxiliary roller and the terrain. | 01-22-2009 |
| 20090200860 | 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 drive tumbler has a plurality of drive surfaces and a circumferential rim surface that includes a plurality of shoe contact surfaces that each contact the inside surface of one of the track shoes that are in contact with the tumbler. The shoe contact surface has a shape such that a line normal to the tangent of the shoe contact surface does not pass through the axis of rotation of the drive tumbler, thereby allowing the shoe contact surfaces on the rim of the drive tumbler to transmit a tractive force to the track. A preferred drive tumbler comprises a center hub and a plurality of individual tooth members connected to the center hub by welds. | 08-13-2009 |
| 20100156169 | Idler And Undercarriage Assembly For Track-Type Machine - An idler of an undercarriage assembly for a track-type machine is disclosed. The undercarriage assembly may have at least two links, which may be interconnected by a cartridge. The cartridge may have a bushing disposed about and rotatable relative to a pin. At least one of the links may have a link rail wear surface, which may be positioned an original wear surface height from the bushing. The idler may have a lower surface, which may be configured to wear against the link rail wear surface. The idler may also have an upper surface, which may be configured to wear against the bushing. The upper surface may be positioned radially outward of the lower surface by an original upper surface height. The original upper surface height may be between approximately 70% and approximately 90% of the original wear surface height. | 06-24-2010 |
| 20100194188 | Track Tensioning System - A tensioning system for a tracked vehicle. The present invention provides for adjusting tension of a track by moving the sprocket relative to the rollers in a substantially vertical direction. The system comprises a sprocket assembly, a roller assembly, a track, and a tension adjustment assembly. The tension adjustment assembly includes a tension bolt threaded through a tension nut that is secured to the sprocket assembly. The bolt threads through the nut and contacts the roller assembly. As the bolt is threaded or unthreaded, the sprocket assembly is moved relative to the roller assembly in a substantially vertical direction. As the assemblies move relative to each other, tension in the track is resultantly adjusted. | 08-05-2010 |
| 20120299371 | TRACK OVER TIRE SYSTEM AND METHOD - A system and method of increasing the traction and mobility of a tandem axled vehicle by disposing an endless track | 11-29-2012 |
| 20130285439 | ROTATION DEVICE FOR CONSTRUCTION MACHINE - A floating seal ( | 10-31-2013 |
| 20140001822 | UNDERCARRIAGE ASSEMBLY WITH CARRIER SKID | 01-02-2014 |
| 20140132061 | IDLER GROUP AND METHOD OF ASSEMBLY - An idler group is disclosed for a mobile machine having a tracked undercarriage with an endless track. The idler group may include a retainer disposed on an axle and within an opening in an idler. The retainer may be configured to achieve an interference fit with the idler sufficient to hold the retainer within the opening of the idler during operation of the mobile machine. In another embodiment, a retaining ring may be disposed within a channel formed in the idler and may contact the retainer. In yet another embodiment, a swaged connection may be formed between the idler and the axle. | 05-15-2014 |
| 20140265548 | Slide Shoe for Undercarriage Frame Assembly - A slide shoe installs on an undercarriage frame assembly of an excavating machine to prevent contact by the lugs of track links when the track buckles. The slide shoe is connected at a top surface to a mounting bar extending between side plates of the frame assembly. The slide shoe may include a front bottom beveled surface extending forward from a bottom surface to a front surface and a rear bottom beveled surface extending rearward from the bottom surface, with the beveled surfaces oriented at upward angles with respect to a line parallel to the bottom surface. A rear upper beveled surface extends rearward from the top surface and is oriented at a downward angle with respect to a line parallel to the top surface and intersects the rear bottom beveled surface at a rear tip of the slide shoe. | 09-18-2014 |
