| Patents for E01B 27 - Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers (2,756) |
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| 01/06/1994 | WO1994000641A1 Device for destroying unwanted vegetation along roadways |
| 12/29/1993 | CN1023334C Arrangements for railway frametool |
| 12/22/1993 | CN2150235Y Vibration tamping device for hydraulic tamping vehicle |
| 12/22/1993 | CN1079791A Schotterplug |
| 12/21/1993 | US5271166 Conveyor chain arrangement for ballast cleaning machine |
| 12/14/1993 | US5269226 Ballast tamping assembly with mechanical stops on tamping picks for limiting pivotal movement |
| 12/01/1993 | EP0572370A2 Ballast plow |
| 11/30/1993 | CA1324737C Freight discharge of railway wagons |
| 11/25/1993 | WO1993023276A1 Self-loadable and self-unloadable open truck |
| 11/16/1993 | US5261763 For crushing mineral material |
| 11/11/1993 | DE4313300A1 Track tamping machine in mobile vehicle - is mounted on frame and comprises vertical tamping tools fixed to transverse adjustable carriage |
| 11/03/1993 | CN2145206Y Slag collecting machine |
| 11/03/1993 | CN1078007A An installation for continyously rehabilitating a ballast bed of a track |
| 11/02/1993 | US5257580 Arrangement and method for producing a protective layer on the subgrade of a track |
| 11/02/1993 | US5257579 Continuous action machine for compacting ballast |
| 10/20/1993 | CN1077509A A tamping machine with a two-sleeper tamping unit |
| 10/20/1993 | CN1022472C Apparatus for machine and tool installation on rail |
| 10/06/1993 | EP0564433A1 Tamping-machine with a two sleeper tamping device |
| 10/06/1993 | CN2143238Y Hydraulic miniature vibrator for railway point |
| 10/04/1993 | CA2090396A1 Tamping machine with a two-sleeper tamping unit |
| 09/29/1993 | CN2142850Y Combined electric machine for cleaning ballast on railroad |
| 09/29/1993 | CN1076747A Sleeper-tamping machine |
| 09/23/1993 | DE4208803A1 Ballast laying machine for railway tracks - has ballast storage bin between crawler tracks at front of machine with additional chutes one either side for loading from wagons on adjacent track |
| 09/23/1993 | DE4208801A1 Ballast laying machine for railway tracks - has height adjustable carrying arm mounted on crawler vehicle and has piston rod of rear ram connected to link rod |
| 09/21/1993 | CA1322299C Mobile track bed cleaning machine and method |
| 09/21/1993 | CA1322297C Mobile switch leveling, lining and tamping machine |
| 09/21/1993 | CA1322296C Machine for laterally displacing a track |
| 09/21/1993 | CA1322295C Track surfacing machine with track stabilization |
| 09/21/1993 | CA1322294C Continuously advancing track leveling, lining and tamping machine |
| 09/21/1993 | CA1322293C Method and machine arrangement for working in a track switch section |
| 09/01/1993 | CN2141431Y Double-axle synchronous inertia vibrator for small hydraulic vibration machine |
| 08/25/1993 | EP0557246A1 Track tamping machine |
| 08/25/1993 | CN1075517A An installation for ballasting and tample a track |
| 08/22/1993 | CA2089686A1 Installation for ballasting and tamping a track |
| 08/12/1993 | DE4213925A1 Goods waggon train for bulk goods transportation - consists of transship wagons with cantilever conveyor and movable base, and goods wagons with movable base |
| 08/03/1993 | US5231929 Ballast cleaning machine with vibrator attached to track lifting unit for vibrating the unit transversely when replacing track on the ballast |
| 07/21/1993 | EP0551835A1 Machine for placing sand or ballast between rails and railway understructure, and method for replacing the railway superstructure |
| 07/21/1993 | CN2138664Y Small screening macine for full section of railway road bed |
| 06/30/1993 | CN1021424C Loading wagon for transporting and storing bulk material |
| 06/30/1993 | CN1021423C Loading wagon for bulk materials |
| 06/24/1993 | CA2085915A1 Tamping tool |
| 06/22/1993 | US5221172 Freight car for bulk material |
| 06/15/1993 | US5219262 Freight car for transporting and storing bulk material |
| 06/09/1993 | CN2135594Y Quick safety deassembly device for tamping tool walking frame |
| 06/09/1993 | CN2135593Y Stone slag tamping tool |
| 05/19/1993 | CN1072230A Arrangement for creating formation protection layer |
| 05/13/1993 | WO1993009292A1 Apparatus for removing the ballast of a railway without demounting the track |
| 05/13/1993 | CA2122587A1 Apparatus for removing the ballast of a railway without demounting the track |
| 05/05/1993 | CN1071723A Tamping assembly |
| 05/05/1993 | CN1071722A Conveying or excavating chain arrangement for track-laying machines |
| 05/04/1993 | CA1317155C Undercutter with rotary trencher |
| 04/28/1993 | EP0539347A1 Tamping unit |
| 04/28/1993 | EP0538760A1 Conveyor and endless chain assembly for railway track working machines |
| 04/27/1993 | US5205218 Tamping machine and method for consolidating the ballast of a track |
| 04/27/1993 | CA1316761C Mobile machine for leveling, lining and tamping a track switch |
| 04/25/1993 | CA2081087A1 Conveying or excavating chain arrangment for track-laying machines |
| 04/20/1993 | US5203662 Track-bound freight car for bulk material |
| 04/13/1993 | US5201127 Self metering ballast system |
| 04/07/1993 | CN1070706A Machine arrangment for picking np., storing and distributing ballast of track |
| 03/10/1993 | EP0531275A1 Assembly for taking up, storing and distributing railway track ballast |
| 02/18/1993 | WO1993003225A1 Improvements in railway track maintenance machinery |
| 02/02/1993 | US5183118 High-capacity ballast reconditioning apparatus |
| 02/02/1993 | US5182995 Rerailing device |
| 01/26/1993 | CA1313084C Ballast cleaning machine |
| 01/19/1993 | CA1312786C Mobile ballast clearing and planing machine |
| 01/19/1993 | CA1312785C Mobile machine for distributing and shaping the ballast bed of a railroad track |
| 01/19/1993 | CA1312783C Continuously advancing track maintenance or rehabilitation machine |
| 01/13/1993 | CN1067938A Track checking vehicle |
| 01/06/1993 | CN1067694A Method and tamping machine for consolidating ballast of track |
| 12/30/1992 | EP0520342A1 Measuring vehicle |
| 12/30/1992 | CN1019661B Transport wagon for loose bulk goods |
| 12/24/1992 | DE4219256A1 Verfahren und maschine zur lagekorrektur eines auf einer tragschicht aufliegenden gleises Method and machine for the correction of a position on a backing layer overlying track |
| 12/22/1992 | US5172638 Dust suppression system for railroad track ballast cleaning apparatus |
| 12/22/1992 | US5172637 Track surfacing machine for the controlled lowering of the track |
| 12/22/1992 | US5172636 Ballast cleaning machine with pivotal and varying speed conveyors for selectively controlling cleaned ballast distribution |
| 12/22/1992 | US5172635 Track working machine for the controlled lowering of a track |
| 12/17/1992 | DE4218716A1 Tamping machine for tamping railway sleepers - has tamping tools, and compressing tamping tools, on individual driven carriers, forming separate units |
| 12/16/1992 | EP0518845A1 Method and tamping machine for the compaction of ballast of railway lines |
| 11/18/1992 | CN1066248A Device for rerailing tool frame |
| 11/04/1992 | EP0511950A1 Device for placing a tool-carrying frame on rails |
| 10/28/1992 | CN1065635A Transportwagen |
| 10/21/1992 | CN1018742B Reference system for railway track machines |
| 10/15/1992 | WO1992017646A1 A sifting machine for railway ballast |
| 10/14/1992 | CN1065304A Track maintenance machine for eontrolled lowering of track |
| 09/30/1992 | EP0505933A1 Wagon for collecting, transporting and discharging bulk material |
| 09/29/1992 | US5151002 Freight car for bulk material |
| 09/02/1992 | EP0501318A1 Transport waggon |
| 09/02/1992 | CN1064124A Cleaning machine |
| 09/02/1992 | CN1064123A Cleaning machine |
| 09/01/1992 | US5142988 Auxiliary railroad track lifting installation |
| 08/26/1992 | CN1063917A Track maintenance machine for lowering trace in controlled manner |
| 08/19/1992 | EP0499018A2 Cleaning machine |
| 08/19/1992 | EP0499016A2 Cleaning machine |
| 08/05/1992 | EP0497232A2 Railway track machine for the controlled lowering of a track |
| 07/28/1992 | US5133263 Ballast tamping assembly |
| 07/23/1992 | WO1992012083A1 Railroad car conveyor |
| 07/23/1992 | DE4101432A1 Method of lowering railway track where it is above required level - involves first removing ballast between sleepers and subsequently removing remainder from under them |
| 07/21/1992 | US5131798 Railroad car conveyor |
| 07/08/1992 | CN2109407U Screen scarifier |
| 07/08/1992 | CN1062570A Track maintenance machine for controlled lowering of track |