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| Number | Title | Issue Date |
| 7987620 | Rotary undercutter for rail line maintenance A railroad ballast removal system capable of removing ballast material from below a rail line. The railroad ballast removal system includes at least one rotary cutting wheel having a plurality of individually replaceable cutting attachments positioned about a perime... | 08/02/2011 |
| 7861439 | Method and device for renewing a ballast bed In a method for the continuous renewal of a ballast bed (41) of a track from which the rails and sleepers have been removed, by carrying away old ballast (42) and depositing cleaned ballast or new ballast (44) on the underlying surface (46 | 01/04/2011 |
| 7845098 | Rotary undercutter for rail line maintenance A railroad ballast removal system capable of removing ballast material from below a rail line. The railroad ballast removal system includes at least one rotary cutting wheel having a plurality of individually replaceable cutting attachments positioned about a perime... | 12/07/2010 |
| 7739811 | Method and installation for rehabilitating a ballast bed In a method of rehabilitating a ballast bed of a track by excavating contaminated ballast and conveying the excavated contaminated ballast by a first conveyor band unit to a screening unit for cleaning the excavated contaminated ballast, the ballast bed is rehabilit... | 06/22/2010 |
| 7316084 | Track sledding machine The invention relates to a machine for use in track sledding operations. Machine (1) comprises a wagon (2) having adjustably carried therebeneath a multibladed plough (3). A rail clamp assembly (4) is included for suspending the track abo... | 01/08/2008 |
| 7178273 | Cutting device for cutting trenches in the ground A cutting device for cutting trenches in the ground having at least one cutting wheel drivable in rotary manner and at least one first cutting element, located on the cutting wheel, for removing soil material during a rotation of the cutting wheel in one rotation di... | 02/20/2007 |
| 7076895 | Apparatus and method for suction and discharge of material An apparatus for suction and discharge of material comprises a container (9) with a suction opening (19) for letting in a sucked-up air/material mixture and a discharge opening (14) for discharging material. The container (9) is rotatable... | 07/18/2006 |
| 7013812 | Tamping tool The present invention comprises a tamping tool comprising a shank and a blade, with the blade having various arrangements of wear-resistant material affixed to the face of the blade by means of brazing, soldering, gluing or other method. Additionally, some arrangeme... | 03/21/2006 |
| 6976324 | Method of scanning a track bed profile A method for the contactless scanning of a track bed profile extending perpendicularly to a longitudinal extension of the track, comprises the steps of simultaneously effectuating the scanning and a measurement of any deviation from a desired track level at a locati... | 12/20/2005 |
| 6966132 | Method and device for moving subsea rocks and sediments A method for moving subsea rocks and sediments which can be at significant depths, in connection with removal of protective rocks around installations where maintenance is to be conducted. Tubing with an ejector nozzle is arranged completely externally in relation t... | 11/22/2005 |
| 6966725 | Apparatus for spreading aggregate material on a road berm An apparatus is provided for spreading aggregate material on ground. The apparatus includes a body 12, an engine 14 carried by the body, motive structure 18 powered by the engine to move the apparatus along the ground. A hopper 20 is asso... | 11/22/2005 |
| 6862822 | Mobile railway track repair apparatus A mobile railway track repair apparatus (10) that includes a mobile unit (11) having a cab (22) rotatably supported on a dual mode undercarriage (21) wherein, a boom unit (12) is pivotally supported by the cab (22) and inclu... | 03/08/2005 |
| 6782955 | Track rehabilitation machine A track rehabilitation machine comprises an elongated machine frame supported on the track by undercarriages for movement in an operating direction, the machine frame having two ends. Mounted on the machine frame are a vertically adjustable endless ballast excavatin... | 08/31/2004 |
| 6745502 | Rail mounted excavating unit and ballast storage vehicle A rubber tired railway plow (100) has a plow unit (102) mounted to a plate (111) which extends across the forward end of the rubber tired vehicle (100). The plow unit (102) is attached so as to be movable on the plate (111).... | 06/08/2004 |
| 6672398 | Ballast cleaning machine A ballast cleaning machine comprises a machine frame supported on the track by undercarriages for movement in an operating direction. Two vertically and laterally adjustable endless ballast excavating chains are sequentially arranged in a longitudinal dir... | 01/06/2004 |
| 6637133 | Ballast cleaning machine A ballast cleaning machine is a machine frame supported on the track by undercarriages, one of the undercarriages at an end of the machine frame being displaceable in the longitudinal direction. Two vertically and laterally adjustable endless ballast exca... | 10/28/2003 |
| 6619405 | Ballast cleaning machine and method A ballast cleaning machine comprises a first machine frame and a second, trailing machine frame linked thereto. Ends of the machine frames are supported on the track by undercarriages for movement of the machine in an operating direction. A vertically and... | 09/16/2003 |
| 6598325 | Machine and method for clearing ballast A mobile machine for clearing ballast from a ballast bed section wherefrom a tie has been removed comprises a machine frame extending in a longitudinal direction, undercarriages supporting the machine frame for mobility on a track supported on the ballast... | 07/29/2003 |
| 6536354 | Railway tie bed scarifier A railway tie bed scarifier mounts on a tie remover/inserter machine. The tie bed scarifier is dimensioned and configured to widen the pre-existing channels left in the ballast through the removal of old ties. The tie bed scarifier includes a carriage mov... | 03/25/2003 |
| 6415720 | Machine for renewing a railroad track A machine for renewing a railroad track on a ballast bed comprises a machine frame extending in a longitudinal direction, undercarriages for supporting the machine frame on the railroad track, a first tie transport device for receiving old ties and a seco... | 07/09/2002 |
| 6209462 | Machine with ballast scarifying device A crib ballast clearing machine comprises a machine frame supported on undercarriages adapted to support the machine frame on a track comprised of rails fastened to ties defining cribs therebetween, and a ballast scarifying device comprising a revolvable ... | 04/03/2001 |
| 6047531 | Apparatus for cutting brush An apparatus for cutting vegetation under railway tressels and roadways that includes a vehicle chassis having a turntable body mounted thereon. A primary control station is mounted on the turntable body along with a main boom with a vegetation cutting he... | 04/11/2000 |
| 6021717 | Machine for compacting and shaping a track bed A machine for compacting and shaping a ballast bed comprises a machine frame supported on undercarriages on a track for mobility in an operating direction, a vertically adjustable track stabilization assembly including a vibrator for generating horizontal... | 02/08/2000 |
| 5937763 | Machine and method of distributing ballast A machine for distributing ballast on a ballast bed supporting a track comprises a machine frame supported on the track by undercarriages, the undercarriages having wheels making point contacts with the track and the contact points defining a reference pl... | 08/17/1999 |
| 5937548 | Machine for withdrawing bulk material from a track A machine for withdrawing bulk material from a track, in particular ballast aterial, includes a bulk material clearing device vertically adjustably secured to a machine frame and including a rotatable, endless scraper chain positioned between the rails of ... | 08/17/1999 |
| 5926981 | Track work machine for excavating material from a track bed A track work machine for excavating material from a bed supporting a track comprises a machine frame, undercarriages supporting the machine frame on the track for movement in an operating direction, a vertically adjustable endless excavating chain operabl... | 07/27/1999 |
| 5907914 | Track maintenance machine A track maintenance machine for excavating material from a track bed comprises a machine frame comprising an upwardly recessed machine frame section, undercarriages supporting the machine frame on the track for movement in an operating direction, and sequ... | 06/01/1999 |
| 5802744 | Method of and an apparatus for reconstructing railway track systems An apparatus for reconstructing railway track systems while simultaneously clearing away the bed of the old track system. A sliding seal driver is used to secure the trench formed by the removal of the old track foundation as the old track is cleared away... | 09/08/1998 |
| 5709270 | Ballast suction machine A machine for aspirating ballast from a bed supporting a track comprises a machine frame and undercarriages supporting the machine frame on the track for mobility therealong. A vacuum generator and a ballast storage receptacle are mounted on the machine f... | 01/20/1998 |
| 5694708 | Excavating and conveying chain assembly with two-part scraper fingers An excavating and conveying chain assembly for transporting ballast of a track includes a plurality of chain links hingedly connected to each other for traveling along a transport path. Connected to each chain link is a scraper blade which has a link-dist... | 12/09/1997 |
| 5664633 | Machine for treating a ballast bed A machine for treating a ballast bed underneath a track comprises a machine frame extending in a longitudinal direction and supported on the track by undercarriages for movement in an operating direction, a suction unit mounted on the machine frame, the s... | 09/09/1997 |
| 5657700 | Railroad hopper car with ballast distributing blades and remote control system A ballast distributing railroad car has a number of ballast hoppers, each with a selectively operable hopper discharge control member which is operable to selectively drop material from the respective hopper either inside of or outside of the rails of a r... | 08/19/1997 |
| 5611403 | Machine for sucking up rail ballast A suction unit (76) provided with a suction pipe (80) having a suction opening (81) for sucking off crushed rock and being vertically and laterally adjustable is allocated to a machine (57) for treating the ballast bed of a track (60) with a machine frame... | 03/18/1997 |
| 5600903 | Ballast shoulder cleaner A ballast machine for plowing ballast from the outer ends of rail supporting cross ties of a railroad bed. The machine is provided with a ballast ridge plow assembly including a slider box having an inner section which is vertically movable by a hydraulic... | 02/11/1997 |
| 5596822 | Rubber tired railway plough Cable laying apparatus for burying cable in or adjacent to a railway bed. A cable laying plough is mounted to a rubber tired loader and the loader moves forwardly under its own power while straddling the track. A pair of rail wheels are mounted on the for... | 01/28/1997 |
| 5579593 | Railroad ballast spreading (plow) system A railroad ballast spreading system is provided for rail cars used to spread ballast about the rails. A plowshare is mounted beneath the rail car and is supported by a bracket arm connected to the rail car. A curved linkage is also connected to between th... | 12/03/1996 |
| 5566619 | Method and apparatus for rehabilitating the subgrade supporting a ballast bed The subgrade supporting a ballast bed for a track is rehabilitated by (a) lifting the track off the ballast bed, removing an upper,portion of the ballast from the ballast bed, comminuting the removed ballast to obtain gravel, storing the gravel, and layin... | 10/22/1996 |
| 5555941 | Machine for working with a suction snout on the ballast of a track bed A machine for working on a ballast bed supporting a track comprises a machine frame, undercarriages supporting the machine frame on the track, and a ballast storage receptacle and a suction arrangement on the machine frame. The suction arrangement compris... | 09/17/1996 |
| 5553674 | Ballast cleaning machine A ballast cleaning machine comprises a machine frame supported on undercarriages running on the track and carrying a ballast screening arrangement, a ballast excavating device including a revolvable excavating chain arranged to deliver excavated ballast t... | 09/10/1996 |
| 5513452 | Installation for the rehabilitation of a ballast bed The installation for the rehabilitation of a ballast bed supporting a track including two rails comprises a first machine, and a second machine, the machines being supported on the track by undercarriages for movement in an operating direction, and the se... | 05/07/1996 |
