| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 305120000 | WITH FRAME CARRIED ENDLESS TRACK | 10 |
| 20080217992 | CRAWLER VEHICLE - In a crawler vehicle according to the present invention, at the time of crane operation at a place where a grounding space of crawlers is limited, a land leveling preparation is suppressed as less as possible so as to improve efficiency of the operation. The crawler vehicle according to the present invention has a high performance. The crawler vehicle according to the present invention is provided with a pair of left and right crawler frames on the both left and right sides of a track frame. The crawler frames can be moved between an expansion position for maximizing a distance between centers of the crawlers and a contraction position for minimizing the distance. Further, the crawler vehicle according to the present invention can position the crawler frames to the track frame at an intermediate position in the middle of the expansion position and the contraction position. | 09-11-2008 |
| 20090267406 | BRAKE ASSEMBLIES AND ACTUATORS - A self-energising brake assembly, particularly for braking a drive shaft of a heavy tracked vehicle such as a tank, has a pair of discs carrying friction pads borne to rotate with the shaft. These friction discs are located to either side of a central non-rotating water-cooled disc assembly. A control brake disc is also borne to rotate with the shaft but capable of turning relative to the same via a ball screw assembly. To apply the brake the control disc is retarded relative to the shaft by means of an associated caliper, which causes relative axial movement between the inner and outer rings of the ball screw. This movement drives the friction disc axially along the shaft, on a ball spline, towards the friction disc, thus clamping the non-rotating disc between the two friction discs and braking the shaft. | 10-29-2009 |
| 20090289495 | Large Mobile Crane - The object of the invention is to reduce the amount of investment required for the usage-optimized configuration and installation of large cranes. This object is achieved by a large mobile crane having an undercarriage, a drive unit ( | 11-26-2009 |
| 20100072813 | Crawler Tracks and Idlers for Crawler Tracks - An idler for use on a tracked vehicle of the type having a track that includes a plurality of track links joined together, which track links pass around the idler. The idler includes a plurality of generally flat surfaces that come into contact with corresponding generally flat surfaces on the track links as the track links pass around the idler. Reduced wear results. The generally flat surfaces on the idler may be provided by removable wear plates. | 03-25-2010 |
| 20130043719 | Elastomeric Bearing for Equalizer Bar of Undercarriage - An elastomeric bearing can be incorporated into a bearing joint assembly of an undercarriage of a track-type machine. The elastomeric bearing can include a plurality of alternating elastomeric layers and metal plies that are configured to allow at least three degrees of relative rotational movement and can allow the relative rotation of roll, pitch, and yaw. The elastomeric bearing can be generally cylindrical with the elastomeric layers and metal plies being generally barrel-shaped such that the cross-section of the elastomeric layers and metal plies define an annular arc that follows an axis of revolution that coincides with a central longitudinal axis thereof. | 02-21-2013 |
| 20130113272 | APPARATUS FOR CONVERTING A WHEELED VEHICLE TO A TRACKED VEHICLE - The invention relates to track systems | 05-09-2013 |
| 20130187443 | ROTATABLE TRACK DRIVE - A track drive includes a primary driven gear configured to attach to a vehicle hub plate and an annular gear having gear teeth on in inner circumference and an outer circumference. The track drive can also include a plurality of intermediate gears disposed between the primary driven gear and the inner circumference of the annular gear, and a plurality of track drive wheels having an integrated gear configured to mate with gear teeth on the outer circumference of the annular gear. The track drive can further include a continuous track configured to be driven by the plurality of track drive wheels. | 07-25-2013 |
| 20140035355 | DEFORMABLE TRACK SUPPORT FOR TRACKED VEHICLES - The present application discloses a track support that includes a variable track frame comprising that includes four or more connector members, hinge joints that connect the connector members and configured to form a polygonal shape having sides each associated with one of the connector members, and a track varying mechanism that can actively change an angle between at least two of the connector members so as to change the polygonal shape of the variable track frame. Track engaging wheels mounted on the connector members can rotate around an axis that intercepts with or is adjacent to the hinge joints. The track engaging wheels can engage with a track belt wrapped around the track engaging wheels. | 02-06-2014 |
| 20150307144 | MULTI-AXIS REACTION ARM ASSEMBLY FOR A TRACKED TRACTOR - An apparatus is disclosed for connecting a drive wheel axle and a track roller frame in a tracked vehicle. The apparatus includes an arm portion for attachment to the track roller frame; a yoke comprising a pivotal connection to the arm portion about a first pivot axis; a bearing housing comprising a pivotal connection to the yoke about a second pivot axis; a bearing assembly disposed adjacent the bearing housing; and a collet separated from the bearing housing by the bearing assembly, wherein the collet is configured for affixation to the drive wheel axle. A method is disclosed for accommodating forces in a vehicle on a drive wheel axle transmitted through a track roller frame, the method including providing an apparatus connecting the drive wheel axle and the track roller frame. The method further includes pivoting portions of the apparatus relative to each other about first and second pivot axes. | 10-29-2015 |
| 305121000 | With roller antifriction means | 1 |
| 20130113273 | APPARATUS FOR CONVERTING A WHEELED VEHICLE TO A TRACKED VEHICLE - The invention relates to track systems | 05-09-2013 |
