| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 104700100 | Track raising car | 7 |
| 20100242781 | Method and Machine for Compressing Ballast of a Rail Track - The compression of ballast for a rail track takes place after two-stage cleaning by a cleaning machine. For this purpose, cleaned ballast is dispensed and a first ballast layer is thereby formed. The rail track which is laid on the first ballast layer has lateral oscillations imparted to it by a front stabilization unit, and the first ballast layer is thereby compressed. The formation of a second ballast layer takes place by a second chute, which second ballast layer is subsequently compressed by a rear stabilization unit. | 09-30-2010 |
| 20120318162 | TAMPING MACHINE WITH AN ADDITIONAL LIFTING DEVICE - A tamping machine for tamping a track is equipped with a track lifting unit, positioned immediately in front of a tamping unit, and an auxiliary lifting device ( | 12-20-2012 |
| 20130228091 | MACHINE FOR CLEANING A BALLAST BED OF A TRACK - In a first method step for cleaning a ballast bed ( | 09-05-2013 |
| 20140318407 | MACHINE AND METHOD FOR RAILWAY TRACK MAINTENANCE, FOR TRACK LEVELLING, ALIGNMENT, COMPACTION AND STABILISATION, CAPABLE OF OPERATING WITHOUT INTERRUPTING THE FORWARD MOVEMENT THEREOF - The invention refers to a machine and a method used to level, align and stabilise the track and compact the ballast bed, producing controlled lifting, so that the load used in the settlement of the rail in its theoretical position falls within the established range, working in an uninterrupted manner. The machine is constituted by two bogies with traction capacity, and front, back and centre control cabins and a rear and frontal measuring tensioner trolleys. The machine has an additional lifting unit whose relative movement with the rest of the machine in controlled by total longitudinal cylinder. The alignment cylinders generate a transversal movement to cause track alignment. Behind this unit according to the direction of work a stabilising unit is situated which consists of two stabilising trolleys. The ground-penetrating radar is situated at the machine front. | 10-30-2014 |
| 20150083013 | SYSTEMS AND METHODS FOR USE IN RAIL TRACK CORRECTIONS - Systems and methods for use in carrying out rail track corrections. A projector device is positioned on a vehicle deployed ahead of a rail maintenance vehicle and includes a Fresnel lens and a plurality of light emitting diodes arranged to provide a light beam that provides a uniform “spot.” The projector device modulates the light beam in such a manner that a pair of receiver receivers disposed on the rail maintenance vehicle can detect the light source and the light intensity and frequency of wavelength of light received into each receiver of a receiver pair is substantially equal. Recorded values may be used to triangulate the geometry of the section of track being worked, while a computer compares the previous section of track already corrected to the current section and makes calculations for desired corrections to be made at work heads on the rail maintenance vehicle. | 03-26-2015 |
| 104700200 | With means to transversely shift track (i.e., aligning) | 1 |
| 20150368865 | APPARATUS FOR IMPROVING THE TRACK POSITION BY RESIDUAL ERROR COMPENSATION - A track adjustment system for operating a permanent-way machine ( | 12-24-2015 |
| 104700300 | Under-track ballast sled or plow | 1 |
| 20110247518 | Ballast removal process - Old ballast is removed from under a section of railway track with a bulldozer having an elongated rake attached to its front blade. The section of railway track is first elevated. The bulldozer is then driven along the section with its rake extending under the section and at a level that causes old ballast to be swept from under the section. | 10-13-2011 |
