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| Number | Title | Issue Date |
| 7587981 | Method for cleaning ballast of a track A method for cleaning ballast of a track comprising rails extending in a longitudinal direction is executed by means of a ballast cleaning machine having a machine frame supported on on-track undercarriages. The machine includes a cleaning chain with a chain cross m... | 09/15/2009 |
| 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 |
| 7208023 | Dry dust control materials The present invention discloses methods to reduce dusting in bulk materials, such as coal. The method includes mixing with the bulk material either a fraction of the bulk material having an electrostatic charge opposite that of the remainder of the bulk material or ... | 04/24/2007 |
| 6978718 | Tamping device and method of tamping a railroad track's ballast A tamping device and method of compacting ballast beneath the intersection of a railroad track's tie and rail utilize a pair of tamping units, each of which terminates in a tool blade. When a pair of tamping unit's first and second tool blades are in ballast on eith... | 12/27/2005 |
| 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 |
| 6883436 | Template door and wing assembly with break-away feature for rail ballast regulator A rail ballast wing assembly includes a outer door with at least one hinge edge, a template door pivotably secured to least one of the hinge edges and a positioning device associated with the outer door and the template door for maintaining an angular orientation of... | 04/26/2005 |
| 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 |
| 6450102 | Ballast tamping machine, and machine of maintaining a track section A machine for tamping ballast underneath a railroad track includes a machine frame extending in a longitudinal direction and supported on the track by undercarriages for mobility in an operating direction. A tamping unit and a track lifting and lining uni... | 09/17/2002 |
| 6450101 | Machine for renewing a track A track renewal machine includes an elongate machine frame supported by undercarriages on the track and having front and rear frame parts connected by a frame joint. In an upper region, the frame parts are interconnected by a drive by which the frame part... | 09/17/2002 |
| 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 |
| 6158352 | Machine and method for rehabilitating a track A mobile machine for rehabilitating a track has a machine frame extending in a longitudinal direction and supported by undercarriages for mobility on the track in an operating direction, the machine frame being composed of a leading frame part with respec... | 12/12/2000 |
| 6073561 | Box car for transporting bulk material A box car for transporting bulk material comprises a frame supported on undercarriages running on a track, a box supported on the frame for storing the bulk material, a bottom conveyor band arranged in the box, the bottom conveyor band being reversibly dr... | 06/13/2000 |
| 5664498 | Track renewal machgine A track renewal machine comprises an elongated machine frame supported on undercarriages for mobility in an operating direction, a device for receiving ties of an old track mounted on the machine frame, a device for planing the ballast bed mounted on the ... | 09/09/1997 |
| 5465666 | Method for changing railway sleepers and equipment for applying the method A method and apparatus for changing railway sleepers is disclosed wherein lifting devices are spaced along a section of railway line to be repaired. The lifting devices simultaneously lift and separate the rails from the sleepers. Thereafter, a plough lev... | 11/14/1995 |
| 5456180 | Machine for rehabilitating a ballast bed A mobile machine for rehabilitating a ballast bed comprises an elongated machine frame supported by spaced apart undercarriages on the track for mobility in an operating direction. Mounted on the machine frame between the undercarriages are a vertically a... | 10/10/1995 |
| 5435252 | Mobile working machine for treatment of a ballast bed or subgrade A mobile working machine for treatment of a ballast bed or subgrade for a ack comprised of rails fastened to ties includes a machine frame which is defined by a longitudinal axis and supported by undercarriages for movement in an operating direction along... | 07/25/1995 |
| 5201127 | Self metering ballast system A ballast metering method and apparatus is disclosed which utilizes a rail mounted metering hopper having a set of forward discharge outlets for directing ballast laterally and downwardly beneath the rails under the pressure of a volume of ballast retaine... | 04/13/1993 |
| 5172635 | Track working machine for the controlled lowering of a track A track working machine for the controlled lowering of a track comprises a machine frame, at least one undercarriage supporting the machine frame on the track for mobility in an operating direction, a track stabilization unit for compacting the ballast wh... | 12/22/1992 |
| 5172638 | Dust suppression system for railroad track ballast cleaning apparatus A dust suppression system is particularly designed for the control of dust generated by a self-propelled, on-site, shoulder ballast cleaning machine. The shoulder ballast cleaning machine scoops up the stone ballast of a railroad track bed, separates the ... | 12/22/1992 |
| 5090483 | Ballast separating device for ballast cleaning machine In combination with a mobile ballast cleaning machine advancing continuously in an operating direction along a railroad track, which comprises a ballast excavating chain including a transverse course extending under the track and driven to excavate a tran... | 02/25/1992 |
| 4998483 | Bogie steering system A bogie unit including at least one wheeled axle pivotally movable about a central vertical axis, a drawbar pivotally secured to a pivot point, and a control device connected to the axle and engaged with the drawbar, the control device being movable, at l... | 03/12/1991 |
| 4967847 | Method and apparatus for cleaning ballast An articulated ballast cleaning system utilizes a pair of ballast cleaners each dedicated to cleaning only a portion of the ballast bed of a railroad track, such that one cleans the peripheral ballast while the other cleans the center ballast. Spoil or wa... | 11/06/1990 |
| 4953467 | Track surfacing machine with track stabilization A continuously advancing track surfacing machine for compacting a ballast bed comprises a power-actuated, vertically adjustable track stabilization assembly mounted on the machine frame between front and rear undercarriages supporting the machine frame on... | 09/04/1990 |
| 4911246 | Ballast cleaning machine A ballast cleaning machine comprises a machine frame comprising two frame parts, one of the ends of one machine frame part adjoining one of the ends of the other machine frame part while the machine frame part ends opposite to the one ends are remote from... | 03/27/1990 |
| 4890557 | Interstitial ballast vibrator An attachment for railroad track maintenance equipment utilizes a parallelogram linkage to position a vibrating skid on the surface of the interstitial ballast intermediate railroad crossties to loosen such ballast for subsequent removal by an undercutter... | 01/02/1990 |
| 4854243 | Mobile track renewal machine A mobile machine for continuously renewing a track by replacing the rails and ties of the existing track by new rails and ties has an elongated, two-part, bridge-like machine frame supported on the track by a front and a rear undercarriage. The facing end... | 08/08/1989 |
| 4770104 | Mobile installation for cleaning ballast and subsequently tamping a corrected track A mobile installation for cleaning the ballast supporting a track and subsequently leveling the track and tamping ballast under the ties of the leveled track comprises a ballast cleaning machine movable in an operating direction along the track and a trac... | 09/13/1988 |
| 4760796 | Ballast cleaning machine with compacting device A mobile ballast cleaning machine comprises a machine frame supporting a ballast excavating and conveying chain, a screening installation and a cleaned ballast redistributing apparatus arranged to receive the cleaned ballast from the screening installatio... | 08/02/1988 |
| 4705115 | Method and apparatus for reconditioning ballast along a railroad track A method and apparatus for reconditioning ballast along a railroad track utilizes lateral excavators to excavate the ballast adjacent the track ahead of an undercutter which excavates beneath the track. The ballast from adjacent the track is discharged be... | 11/10/1987 |
| 4535700 | Device for tamping railroad track adjacent the tie ends thereof There is disclosed a tamping device for tamping railway track ballast adjacent and beneath the track tie ends. The device includes a track working machine, a retractable tamper frame mounted on the machine; the frame in operative position, extending, at l... | 08/20/1985 |
| 4440088 | Fabric insertion system A fabric insertion system for placing fabric in the rock ballast roadbed of an existing railroad track at a predetermined depth beneath the ties of the track includes a car for supporting a roll of fabric which is to be inserted into the ballast. A fabric... | 04/03/1984 |
| 4379371 | Track skeletonizer An apparatus (10) for performing work on a railway roadbed is disclosed. The apparatus includes a mobile support framework (16), a front truck (18) and a rear truck (20). Leg assemblies (22, 24) connect each truck to the framework (16). Rail hooks (46, 48... | 04/12/1983 |
| 4355687 | Ballast leveling apparatus and method A ballast leveling apparatus mounted on a mobile ballast cleaning machine comprises a pair of endless ballast leveling chains, a vertical pivot in each ballast bed shoulder and supporting a respective chain for pivoting in a plane underneath the track, a ... | 10/26/1982 |
| 4211170 | Mobile apparatus for the continuous replacement of an old track by a new track A mobile train assembly of track-bound freight and work cars for the continuous replacement of an old track by a new track, which comprises a main work car carrying track replacement equipment on a carrier frame supported on two undercarriages and extendi... | 07/08/1980 |
| 4170942 | Mobile leveling, lining and ballast packing machine A mobile leveling, lining and ballast packing machine for the non-stop correction of a track comprises a pair of elongated vibratory ballast compacting plates extending along the tie ends at each side of the track and arranged cooperatively to compact the... | 10/16/1979 |
| 4165693 | Mobile track leveling, lining and tamping apparatus A mobile track leveling, lining and tamping apparatus is constituted by a single machine assembly of a first vehicle mounted on two undercarriages and carrying therebetween a track correction unit and a tamping unit, a reference system for controlling the... | 08/28/1979 |
| 4165694 | Mobile track leveling, lining and tamping apparatus A mobile track leveling, lining and tamping apparatus comprises a frame assembly mounted on undercarriages and mounting a tamping head, a track shifting unit and a reference system for controlling the track leveling and lining by the track shifting unit, ... | 08/28/1979 |
| 4119154 | Method and apparatus for treating ballast Ballast is removed from beneath railroad ties in accordance with a ballast treating method and apparatus without disturbing the ballast in the cribs between adjacent ties, and is deposited into a trench formed along the railway. The crib ballast is likewi... | 10/10/1978 |
| 4064807 | Mobile apparatus for non-stop track leveling and ballast tamping In a non-stop track leveling and ballast tamping apparatus wherein a machine frame is continuously advanced along a track as successive track sections are lifted for leveling under the control of a reference system, a plow is arranged to move ballast onto... | 12/27/1977 |
