| 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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| 05/10/1989 | EP0314933A1 Continuous ballast-tamping machine with independent tamping heads for railway lines |
| 05/10/1989 | EP0314854A1 Travelling tracktamping, leveling and lining machine for track leveling and/or lateral displacing in the area of a switch and crossing |
| 05/02/1989 | US4825768 Mobile machine for leveling, lining and tamping a track switch |
| 04/26/1989 | CN1032561A Continuously advancing track maintenance or rehabilitation machine |
| 03/21/1989 | US4813488 Ballast cleaning machine |
| 03/08/1989 | CN1031550A Aqueous coating compositions |
| 03/07/1989 | US4809617 Box car |
| 02/23/1989 | WO1989001498A1 Aqueous coating compositions |
| 02/15/1989 | EP0303037A1 System to feed and discharge materials continuously in operations to rehabilitate railway road beds and the like |
| 02/08/1989 | EP0302259A1 Rehabilitation machine having its feed and discharge of materials at its leading end in the direction of its advance |
| 02/08/1989 | EP0302225A1 Machine to form and rehabilitate railway ballast and railway road beds |
| 02/02/1989 | DE3814733A1 Gleisstopfmaschine Tamping machine |
| 02/01/1989 | CN2031809U Small-size tamping machine |
| 01/24/1989 | US4799430 Mobile ballast cleaning apparatus |
| 01/19/1989 | DE3738751A1 Mobile track-tamping, lifting and lining machine for the points and crossing region |
| 01/18/1989 | CN1030457A Cleaning machine with circulating belt of conveying chain for track ballast bed |
| 01/04/1989 | EP0298049A1 Ridging device for earthing up the ballast of a railway by vibro-compression |
| 01/03/1989 | US4795301 Low-center-of-gravity self-unloading train for bulk commodities |
| 01/03/1989 | US4794862 Track leveling and ballast tamping machine |
| 12/29/1988 | DE3800953A1 Gleisbaumaschine zum verteilen und profilieren des bettungsschotters eines gleises mit flankenpflug To distribute and track maintenance machine profile of bettungsschotters a track with edge-plow |
| 11/30/1988 | CN87201638U Ballast screen scarifier |
| 11/16/1988 | CN87103175A Unidirectionally vibrating hydraulic tamper |
| 11/16/1988 | CN87103129A Pick-palm with concave and convex |
| 10/04/1988 | US4774890 Mobile track renewal installation |
| 09/27/1988 | US4773333 Selective production tamper machine and a tamping head therefor |
| 09/15/1988 | DE3737276A1 Stopfpickel fuer eine gleisstopfmaschine Tamping tines for one track-cup machine |
| 09/13/1988 | US4770104 Mobile installation for cleaning ballast and subsequently tamping a corrected track |
| 09/08/1988 | DE3738750A1 Mobile track-working machine for the points and crossing region |
| 09/07/1988 | CN88101033A Walking ballast-tamping and track-lifting machine, especially suitable for operating at switch and crossing area |
| 08/10/1988 | EP0277802A2 Tool for stone-blowing |
| 08/02/1988 | US4760797 Method and apparatus for automated tie detection and tamping |
| 08/02/1988 | US4760796 Ballast cleaning machine with compacting device |
| 08/02/1988 | CA1239833A1 Arrangement for excavating bulk material from a track bed |
| 07/13/1988 | CN87104379A Mud-resistance roadbed of serpentine dolomite tailings |
| 06/28/1988 | CA1238521A1 Apparatus for correcting the level and cross level of a track |
| 06/16/1988 | DE3641917A1 Ballast-cleaning machine for track installations |
| 05/18/1988 | CN86107743A Twist-shock-vibration type electric tamper |
| 05/17/1988 | US4744304 Railway track tamping machine |
| 05/17/1988 | US4744303 Railway track tamping machine |
| 05/17/1988 | US4744302 Mechanism for bending abutting rail section ends at rail joints in the operation of a track working machine |
| 05/10/1988 | US4743415 Process for sealing railroad structures |
| 05/10/1988 | US4742628 Ballast re-distribution unit on a machine to shape and re-distribute railway road beds, and a shaper and re-distribution machine thus equipped |
| 04/19/1988 | CA1235332A1 Ballast cleaning method and machine |
| 04/19/1988 | CA1235331A1 Ballast cleaning machine |
| 04/19/1988 | CA1235330A1 Continuously advancing track leveling, lining and tamping machine |
| 04/12/1988 | US4736534 Ditcher method and apparatus |
| 03/30/1988 | CN87212148U Quick disconnecting unit for tamping tool |
| 03/29/1988 | US4733614 Continuously advancing machine for works on a railway track |
| 03/15/1988 | CA1234014A1 Rail maintenance machine the chassis of which is equipped with a device for lifting and shifting a railway track |
| 02/10/1988 | EP0255564A1 Machine for replacing or renewing the rails and sleepers of an existing track |
| 02/03/1988 | CN87104397A Machinery for replacing rail and sleeper |
| 01/13/1988 | CN86103092B Short hydraulic ramming machine being able not to exceed limited location |
| 12/15/1987 | CA1230267A1 Ballast tamping machine |
| 12/15/1987 | CA1230266A1 Mobile track switch leveling, lining and tamping machine |
| 12/15/1987 | CA1230265A1 Mobile track leveling, lining and tamping machine |
| 12/15/1987 | CA1230264A1 Continuously advancing track leveling, lining and tamping machine |
| 11/25/1987 | EP0246228A1 Tamping tool |
| 11/24/1987 | US4707935 Self-propelled machine to dress and re-distribute railway road bed ballast |
| 11/19/1987 | DE3706693A1 Conversion carriage for track installations, capable of travelling on rails |
| 11/17/1987 | US4706395 Ballast dressing unit on machines which dress and re-distribute railway road bed ballast |
| 11/11/1987 | CN86207496U Vertical electric rammer |
| 11/10/1987 | US4705115 Method and apparatus for reconditioning ballast along a railroad track |
| 11/10/1987 | CA1229018A2 Mobile track leveling, lining and tamping machine |
| 11/10/1987 | CA1229017A1 Mobile track leveling, lining and tamping machine |
| 10/14/1987 | EP0240648A1 Ballast cleaning machine with cribbing means |
| 10/14/1987 | CN87100340A Railway ballast screen scarifier with screen device |
| 10/07/1987 | EP0239712A1 Mobile track-treating machine for removing, cleaning and reintroducing ballast with a ballast compacting device |
| 10/07/1987 | EP0239711A1 Mobile plant cleaning the ballast of a track with means to distribute said ballast |
| 09/10/1987 | DE3607245A1 Working method and finisher for producing a ballast bed for railway tracks on a formation |
| 08/26/1987 | CN86106434A Tamping machine with rail jack, tamping tool and track mechanism |
| 08/12/1987 | CN86202867U Hydraulic tamping tool of non-intrusion edge of workplace |
| 08/04/1987 | CA1224973A1 Mobile track leveling, lining and tamping machine |
| 08/04/1987 | CA1224972A1 Mobile track leveling, lining and tamping machine |
| 07/28/1987 | US4682428 Railway ballast renewal machine for tunnels |
| 07/14/1987 | CA1224087A1 Tamping unit |
| 07/14/1987 | CA1224086A1 Mobile track leveling, lining and tamping machine |
| 07/08/1987 | EP0228109A1 Metalling re-distribution unit on a machine to shape and redistribute railway road beds |
| 07/01/1987 | EP0227142A1 Metalling spreader unit in a machine to maintain railway road beds, and machine which employs such spreader unit |
| 06/23/1987 | US4674208 Ballast removing apparatus |
| 06/04/1987 | WO1987003316A1 Tamping tool |
| 04/07/1987 | US4655142 Apparatus for correcting the level and cross level of a track |
| 04/07/1987 | CA1220087A1 Mobile conveyor arrangement |
| 04/07/1987 | CA1220086A1 Box car |
| 03/03/1987 | US4646645 Mobile track leveling, lining and tamping machine |
| 02/24/1987 | US4644868 Continuously advancing track leveling, lining and tamping machine |
| 02/17/1987 | US4643101 Mobile track leveling, lining and tamping machine |
| 02/10/1987 | CA1217679A Arrangement for excavating and conveying bulk material |
| 02/03/1987 | US4640364 Ballast cleaning machine with preliminary sifting conveyor |
| 01/31/1987 | CN85101378A Continuous moving machinery for railway ramming, leveling and aligning |
| 01/29/1987 | DE3623641A1 Apparatus for the distribution and levelling of granular materials |
| 01/29/1987 | DE3623616A1 Apparatus for the distribution and compaction of ballast |
| 01/24/1987 | CN86103092A Short hydraulic ramming machine being able not to exceed limited location |
| 01/21/1987 | EP0208826A1 Tamping unit for a track-tamping machine |
| 01/13/1987 | US4635664 Mobile ballast cleaning machine |
| 01/13/1987 | US4635557 Machine for works on a railway track with continuous advance |
| 12/30/1986 | US4632037 Moble track leveling, lining and tamping machine |
| 12/30/1986 | EP0206590A1 Self-unloading train for bulk commodities |
| 12/30/1986 | EP0205723A1 Mobile track-working machine and method for bending the ends of laid rails in the joint zone |
| 12/23/1986 | US4630541 Mobile track leveling, lining and tamping machine |
| 12/23/1986 | CA1215584A1 Ballast cleaning machine |