| 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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| 04/29/1999 | WO1999020409A1 Method and apparatus for recycling an aggregate contaminated with a hydrocarbon |
| 04/29/1999 | DE19834060A1 Permanent way position correction method |
| 04/21/1999 | EP0909852A1 Tamping apparatus |
| 04/21/1999 | CN1214391A Tamping unit |
| 04/20/1999 | CA2155479C Tamping unit for track tamping machines for tamping two immediately adjacent sleepers |
| 04/14/1999 | EP0907800A2 Movable preparation machine, in particular a screening machine, for ballast gravel for railways |
| 04/14/1999 | CN2313951Y Ballast screener |
| 04/14/1999 | CN1213723A Track working machine having reference system for controlling working unit,a nd method |
| 03/31/1999 | EP0828896B1 A ballast system for compacting machines |
| 03/30/1999 | US5887527 Track lining machine |
| 03/24/1999 | EP0675985B1 Apparatus for removing the ballast of a railway without demounting the track |
| 03/23/1999 | CA2017822C Ballast tamping unit for mounting on a tamping machine and a tamping tool therefor |
| 03/23/1999 | CA2011104C Mobile track tamping machine |
| 03/10/1999 | CN1210177A Machine for picking up bulk material lying on track |
| 03/03/1999 | CN2309356Y Single-side expansible walking and going down device for railway ballast ramming machine |
| 02/27/1999 | CA2246112A1 Railway tool cart with articulated arm |
| 02/25/1999 | DE19834072A1 Position correction method for permanent ways |
| 02/24/1999 | CN1208797A Track working machine having laser reference system, and method |
| 02/24/1999 | CN1042248C Machine for picking-up, storing and distributing ballast of track |
| 02/16/1999 | CA2010968C Mobile track position correcting and tamping machine |
| 02/16/1999 | CA2010852C Mobile track leveling, lining and tamping machine |
| 02/02/1999 | US5865592 Stone metering system for railroad track maintenance vehicle |
| 01/26/1999 | US5862759 Self-propelled machine for stabilizing, by hammering and compacting, tracks laid on ballast |
| 01/20/1999 | CN1041763C Track maintenance machinery for ballast bed treatment |
| 01/06/1999 | CN1203987A Machine for consolidating and profiling ballast bed of track |
| 01/06/1999 | CN1041543C Conveying or excavating chain arrangement for track-laying machines |
| 01/06/1999 | CN1041542C Loading vehicle for transporting and storing bulk material |
| 12/30/1998 | EP0887464A1 Machine for compacting and profiling the railway ballast |
| 12/23/1998 | CN1041335C Method and equipment for reparing railway roadbed |
| 12/17/1998 | DE19724785A1 Method for laying transport rail tracks on compressed bed of sand and gravel |
| 12/09/1998 | EP0882841A1 Shoulder cleaner |
| 12/02/1998 | CN1200339A Bulk material loading wagon |
| 12/02/1998 | CN1200338A Bulk material loading wagon |
| 11/25/1998 | EP0879749A1 Device for handling of bulk material loads in a wagon |
| 11/18/1998 | EP0878369A1 Bulk goods handling wagon |
| 11/04/1998 | CN1040568C Tamping assembly |
| 10/01/1998 | DE19711437A1 Polymer=based binder for stabilising railway track and track tamping machine |
| 09/23/1998 | EP0731863B1 Process and device used to renovate railroad track installations |
| 09/22/1998 | US5809895 Split tool mechanical vibrator |
| 09/08/1998 | US5802744 Method of and an apparatus for reconstructing railway track systems |
| 09/03/1998 | DE19807677A1 Railway track ballast cleaning machine |
| 08/05/1998 | CN2287167Y Screening apparatus for railway ballast |
| 08/05/1998 | CN2287166Y Screening apparatus for railway ballast |
| 07/23/1998 | WO1998031876A1 A method for forming a gravel covered upper surface along a railway bed section and an escavating arrangement adapted herefor |
| 07/01/1998 | CN1038956C Ballast lifting and spreading machine |
| 06/09/1998 | US5762464 Railroad car for loading and unloading rails |
| 05/27/1998 | EP0844330A1 Bulk goods handling wagon |
| 05/27/1998 | CN1182704A Vehicle for carrying bulk material |
| 05/20/1998 | CN1182022A On-track bulk material loading wagon |
| 05/19/1998 | US5752447 Tamping machine |
| 05/13/1998 | EP0841232A1 Bulk goods handling wagon |
| 05/13/1998 | CN2281361Y Trailered slope screening machine |
| 05/12/1998 | USRE35788 Method of and arrangement for rehabilitating a ballast bed of a track |
| 05/07/1998 | CA2220617A1 An on-track bulk material loading wagon |
| 05/06/1998 | CN1180630A Bulk material loading wagon |
| 04/29/1998 | EP0838383A1 Bulk goods handling wagon |
| 04/15/1998 | EP0835959A1 Method for reprocessing ballast of railway tracks |
| 04/09/1998 | WO1998014662A1 Apparatus and method for levelling railway lines |
| 04/01/1998 | CN2277419Y Ballast cleaner for roadbed |
| 03/25/1998 | CN2276944Y Rail vibrator |
| 03/24/1998 | US5730059 Railroad ballast tamping apparatus |
| 03/18/1998 | EP0828896A1 A ballast system for compacting machines |
| 03/17/1998 | US5727474 Freight car for storage of bulk material |
| 03/04/1998 | EP0826829A2 Machine for taking up bulk material placed on the railway track |
| 03/04/1998 | CN1174916A Pipeline construction machinery for digging track sub-grade material |
| 03/04/1998 | CN1174915A Pipeline construction machinery for digging road sub-grade material |
| 02/25/1998 | CN1037541C 捣固机 Tamping machine |
| 02/18/1998 | EP0824164A2 Track maintenance machine for removing the ballast |
| 02/18/1998 | EP0824163A2 Track maintenance machine for removing the ballast |
| 02/11/1998 | CN2274208Y Fully-hydraulic traction-type cleaning-screening machine for sloping fields |
| 02/04/1998 | EP0822293A1 Method and apparatus for the introduction of a filler material under a road or track surface |
| 01/20/1998 | US5709270 Ballast suction machine |
| 01/20/1998 | US5709001 Track work machine |
| 01/13/1998 | US5706734 Ballast tamping machine, and method of tamping ballast under a track |
| 01/02/1998 | DE19625438A1 Fahrbare Aufbereitungsmaschine, insbesondere Siebmaschine, für Bettungsschotter im Bahnwesen Mobile processing machine, in particular screening machine for ballast stones in railways |
| 12/31/1997 | WO1997049866A2 Movable preparation machine, in particular a screening machine, for ballast gravel for railways |
| 12/09/1997 | US5694708 Excavating and conveying chain assembly with two-part scraper fingers |
| 12/03/1997 | CN1036610C Machine arrangement for tamping track |
| 11/26/1997 | CN1165890A Machine and method for ballasting track |
| 11/19/1997 | EP0635082B1 Machine for sucking up rail ballast |
| 10/29/1997 | EP0803610A2 Machine and method for placing the ballast of a railway track |
| 10/29/1997 | CN1163331A Tamping machine for track |
| 10/23/1997 | CA2203337A1 A machine and method for ballasting a track |
| 10/22/1997 | CN1162668A Machine for implementing track maintenance operations |
| 09/18/1997 | DE19601423A1 Method of soil exchange for railways |
| 09/10/1997 | CN1158929A Method of track bed treating and equipment for carrying out this method |
| 09/09/1997 | US5664633 Underneath a track |
| 09/09/1997 | US5664498 Machine for removing an old track/laying a new track on a ballast bed |
| 08/26/1997 | US5660112 Work car for track maintenance operations |
| 08/20/1997 | EP0790352A2 Arrangement for the subgrade-rehabilitation of a ballast for a track |
| 08/13/1997 | CN1156774A Tamping unit |
| 08/06/1997 | EP0787858A1 Machine for carrying out railway trackworks |
| 07/30/1997 | EP0786556A1 Self-propelled machine for stabilizing by hammering and compacting, tracks laid on ballast |
| 07/16/1997 | EP0784121A1 Tamping device for railway track |
| 07/16/1997 | EP0783612A1 Ballast machine |
| 06/26/1997 | DE19547511A1 Railway track substructure servicing method |
| 06/24/1997 | US5640909 Method and machine for tamping and stabilizing a track |
| 06/18/1997 | CN1152057A Machine for dismantling old track and laying new track |
| 06/11/1997 | EP0777786A1 Process for the longer-term stabilization of heavily laden rail sections and device for carrying out this process |
| 05/28/1997 | EP0775780A1 Method for renewing railway tracks |