| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 104010000 | Tamper | 16 |
| 20100064928 | TAMPING UNIT FOR TAMPING A TRACK - A tamping unit ( | 03-18-2010 |
| 20110030573 | TAMPING MACHINE - A tamping machine designed especially for tamping switch sections comprises two inner and two outer tamping units ( | 02-10-2011 |
| 20130327241 | TAMPING PICK - A tamping tine ( | 12-12-2013 |
| 20150083014 | DRIVE FOR RAILROAD BALLAST TAMPER APPARATUS - A tamper drive includes a wobble shaft rotatable about a central axis. The wobble shaft includes an eccentric hub recess within a movable bearing coupled to a yoke. The movable bearing rotates when the wobble shaft rotates to induce reciprocal movement of the yoke. In another tamper drive, an eccentric portion of a wobble shaft is rotatable within a bearing coupled to or integrated with an offset lobe having a pin slidingly disposed therein. Still another tamper drive includes an arm having a shaft fixedly coupled to one end, and first and second cam followers disposed at the other end. A rotatable cam provides a cam surface for each of the first and second cam followers. | 03-26-2015 |
| 20160010287 | TAMPING UNIT FOR A TRACK TAMPING MACHINE | 01-14-2016 |
| 20160186385 | METHOD FOR CORRECTING A RAIL TRACK - For correction of a track position in connection with ballast cleaning, after cleaned ballast has been returned to a a track, the actual position of the latter is measured while determining actual position data. Parallel to that, fixed point correction values are determined by a sighting trolley following behind. The actual position data and the fixed point correction values are transmitted to the tamping machine, following behind, and are used for determining correction values for a desired track position to be created by tamping. | 06-30-2016 |
| 104012000 | Car mounted | 8 |
| 20120174816 | VERTICAL FORCE STABILIZER - An exemplary apparatus and method for applying a force to rails of a track is disclosed. The apparatus has a device with at least one first weight and at least one second weight rotatably mounted about a horizontal shaft which has an axis which is essentially perpendicular to the longitudinal axis of the rails. A power source is provided to drive the rotation of the at least one first weight and the at least one second weight at different revolutions per second. The rotation of the at least one first weight and the at least one second weight creates a vertical force which has a larger downward component as compared to an upward component of the vertical force. | 07-12-2012 |
| 20130220162 | DRONE VEHICLE - A drone vehicle for performing maintenance on a railway system is provided. A drone vehicle control system is structured to utilize tie position data to position a drone vehicle workhead over at least a portion of a respective tie. The drone vehicle control system is further structured to actuate the drone vehicle workhead. The drone vehicle may be controlled by a drone vehicle control system linked, preferably by wireless communications, to a lead vehicle and a lead vehicle control system. The lead vehicle control system and the drone vehicle control system are structured to communicate with each other, with the lead vehicle control system providing the tie position data to the drone vehicle control system. | 08-29-2013 |
| 20140261048 | RAIL CAMP - A rail vehicle includes a frame, a pair of wheels, a joint locator, a clamping assembly, and a processor. The wheels travel along a rail. The joint locator detects a joint bar on the rail. The clamping assembly is coupled to the frame and includes a pair of rail clamps disposed laterally outward of the pair of wheels. The processor is configured to automatically actuate the clamping assembly when the clamping assembly reaches the joint bar. | 09-18-2014 |
| 20140352569 | RECIPROCATION SYSTEM AND METHOD FOR RAIL VEHICLE - The present disclosure generally relates to a rail vehicle having a reciprocation system comprised of independently movable work heads for carrying out rail maintenance operations. Related methods of operation of the rail vehicle and associated reciprocation system are also described. | 12-04-2014 |
| 20150083015 | ROADWORTHY RAILROAD BALLAST TAMPER APPARATUS - A tamper apparatus configured for being transportable upon a road is provided. A chassis is configured for supporting the tamper apparatus. A retractable turntable unit is connected to the chassis. The turntable unit has a generally quadrilateral configuration with side walls, and is rotatably attached at substantially a center of mass of the tamper apparatus. A tamping unit is connected to the chassis and configured for performing packing of a ballast under railroad ties for correcting cross and longitudinal levels of a pair of rails of a railroad track. A buggy lift assembly is removably attached to the chassis and configured for providing track alignment of the rails. At least one set of retractable rail wheels is connected to the chassis such that the chassis is towable by an automobile. | 03-26-2015 |
| 20150107482 | PIVOT AXLE ASSEMBLY FOR ROADWORTHY RAILROAD BALLAST TAMPER APPARATUS - A rail tamper apparatus is provided, including a chassis configured for being hitched to a semi-tractor trailer for road travel, and also configured for travel on rails of a railroad track, at least one ballast tamping unit mounted to the chassis, a turntable unit mounted to the chassis, and a pivoting axle assembly mounted to the chassis that is retractable relative to the chassis in a road travel position for highway travel, and is extendable from the chassis into a track travel position for operation on the rails, and including a rail wheel drive motor being extendable with the axle assembly. | 04-23-2015 |
| 20160047091 | RAIL VEHICLE HAVING ROLLER CLAMP ASSEMBLY AND TOWING ARM - A rail vehicle includes a frame, a clamping assembly and a towing arm coupled to the frame and selectively coupled to the clamping assembly. The towing arm is movable from a first, unengaged position to a second, engaged position. The clamping assembly includes a plurality of roller clamps that are adapted to rotate about respective central axes of the roller clamps. | 02-18-2016 |
| 20160153150 | TAMPING MACHINE FOR RAILWAY BALLASTS, RAILWAY CAR AND USE OF TAMPING MACHINE FOR MAKING AND REGENERATING RAILWAY BALLASTS | 06-02-2016 |
| 104013000 | Hand tools | 2 |
| 20130263755 | METHOD FOR BALLAST TAMPING A RAILWAY TRACK - Prior to immersion into the ballast, a hand tamper ( | 10-10-2013 |
| 20130269563 | HAND TAMPER FOR TAMPING A TRACK - A hand tamper for tamping ballast of a track comprises a shaft tube ( | 10-17-2013 |
