| 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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| 12/23/1986 | CA1215583A1 Tamping head with limiting stop for tool reciprocation |
| 12/16/1986 | US4628822 Continuously advancing track leveling, lining and tamping machine |
| 12/09/1986 | US4627360 Mobile track leveling, lining and tamping machine |
| 12/09/1986 | US4627358 Continuous action track leveling, lining and tamping machine |
| 12/03/1986 | EP0203642A1 Railway ballast renewal machine for tunnels |
| 12/02/1986 | US4625651 Mobile track switch leveling, lining and tamping machine |
| 10/01/1986 | EP0195882A1 Railroad tamping machine with open track tamping unit |
| 09/30/1986 | US4614238 Arrangement for excavating bulk material from a track bed |
| 09/16/1986 | US4611541 Ballast cleaning method and machine |
| 08/19/1986 | US4606275 Tamping tools |
| 08/19/1986 | CA1209857A1 Ballast cleaning machine |
| 08/13/1986 | CN85102236A Small-sized tamper between sleepers |
| 08/12/1986 | CA1209406A1 Device for tamping railroad track adjacent the tie ends thereof |
| 07/08/1986 | US4598645 Railway track tamper |
| 07/02/1986 | EP0185834A1 Track reconditioning apparatus with at least one pneumatic device for blowing bedding material |
| 07/02/1986 | CA1206810A Ballast cleaning machine |
| 07/02/1986 | CA1206809A Track tamping, leveling and lining operating unit |
| 07/02/1986 | CA1206808A Train for laying a new railroad track |
| 07/02/1986 | CA1206807A Mobile arrangement and method for improving a track bed |
| 06/24/1986 | US4596193 Mobile track leveling, lining and tamping machine |
| 06/11/1986 | EP0184236A1 Machine to restore railway road beds with a continuous endless-conveyor riddle |
| 05/20/1986 | US4589343 Rail maintenance machine the chassis of which is equipped with a device for lifting and shifting a railway track |
| 05/07/1986 | EP0180570A2 Tamping unit with vibratory and adjustable tamping tools for a travelling tamping machine, and apparatus for driving the tamping unit |
| 05/06/1986 | CA1204023A1 Methods and means for consolidating ballast |
| 04/29/1986 | CA1203713A1 Railway track tamper |
| 04/22/1986 | CA1203434A1 Railway track tamping machine |
| 04/15/1986 | CA1203124A1 Track leveling method |
| 04/15/1986 | CA1203123A1 Railway work machine |
| 04/15/1986 | CA1203122A1 Railway work machine |
| 04/08/1986 | CA1202823A1 Method and apparatus for obtaining a controlled degree of ballast compaction in the tamping and leveling of a track |
| 04/01/1986 | CA1202592A1 Freight train |
| 03/18/1986 | US4576538 Box car |
| 03/18/1986 | US4576095 Ballast tamping machine |
| 03/18/1986 | CA1201937A1 Railway track renewal train |
| 02/25/1986 | US4572079 Mobile track leveling, lining and tamping machine |
| 02/25/1986 | CA1201016A1 Device for controlling a railroad track making or repairing machine |
| 01/15/1986 | EP0168103A2 Track-renewal train unit |
| 01/14/1986 | US4563953 Tamping head with limiting stop for tool reciprocation |
| 01/14/1986 | US4563826 Apparatus for removing ballast from beneath a railroad track |
| 12/31/1985 | US4561198 Method and apparatus for scarifying a railroad crib |
| 12/31/1985 | CA1198628A1 Mobile track position correction machine |
| 12/18/1985 | EP0164782A2 Ballast dressing unit on machines which dress and re-distribute railway road bed ballast |
| 12/11/1985 | EP0164163A2 Self-propelled machine to dress and re-distribute railway road bed ballast |
| 12/11/1985 | EP0164160A2 Unit to re-distribute ballast for machines which dress and re-distribute railway road bed ballast |
| 12/10/1985 | CA1197864A1 Ditcher method and apparatus |
| 12/03/1985 | US4556112 Mobile conveyor arrangement |
| 11/26/1985 | US4554697 Ballast brooms |
| 11/13/1985 | EP0161117A1 Continuously advancing apparatus for railroad track works |
| 09/03/1985 | US4538687 Arrangement for excavating and conveying bulk material |
| 09/03/1985 | US4538686 Ballast cleaning machine |
| 08/28/1985 | EP0153213A1 Continuously advancing working device on railroad track |
| 08/28/1985 | EP0152643A1 Travelling machine for removing ballast from rail tracks |
| 08/27/1985 | US4538061 Railway work machine |
| 08/27/1985 | US4537135 For a track working machine |
| 08/27/1985 | CA1192444A1 Mobile ballast compacting machine |
| 08/20/1985 | US4535700 Device for tamping railroad track adjacent the tie ends thereof |
| 08/20/1985 | US4535699 Device for controlling a railroad track making or repairing machine |
| 08/13/1985 | US4534415 Ballast cleaning machine with two ballast screening installations |
| 08/13/1985 | US4534295 Track tamping, leveling and lining operating unit |
| 08/13/1985 | CA1191739A1 Mobile installation with several independently movable track maintenance machines |
| 07/23/1985 | US4531053 Railway work machine |
| 07/23/1985 | US4530403 Ballast cleaning machine |
| 07/16/1985 | US4528912 Track leveling method |
| 07/03/1985 | EP0146681A1 Railway ballast cleaning method and machine for performing it |
| 06/18/1985 | CA1188929A1 Gate assembly unit for ballast distribution from railroad car |
| 06/04/1985 | US4520735 Convertible rail-highway maintenance vehicle |
| 04/23/1985 | CA1185830A1 Railway track tamping machine |
| 04/23/1985 | CA1185829A1 Railway track tamping machine |
| 04/10/1985 | EP0136442A1 Railway ballast screen permitting the elimination of parts of earth and ballast elements of less than prescribed size |
| 04/09/1985 | CA1185120A1 Track levelling and tamping machine with hydraulic pressure control system |
| 03/26/1985 | CA1184436A1 Ballast tamping machine |
| 03/26/1985 | CA1184435A1 Railway track tamping machine |
| 03/05/1985 | US4502389 Track work train |
| 02/26/1985 | US4501200 Tamping tool retainer |
| 02/05/1985 | US4497256 Mobile track position correction machine |
| 01/22/1985 | US4494462 Thaw shed heater |
| 01/15/1985 | CA1180949A1 Mobile ballast cleaning machine |
| 01/15/1985 | CA1180948A1 Ballast tamping tool unit |
| 01/15/1985 | CA1180947A1 Pivoting head continuous tamper |
| 01/08/1985 | CA1180598A1 Mobile machine and method for compacting ballast |
| 01/08/1985 | CA1180597A1 Tamping tool assembly |
| 12/25/1984 | US4489658 Ballast shoulder consolidator |
| 12/18/1984 | US4488492 Railway track tamping machine |
| 11/27/1984 | CA1178487A1 Railway track tamping machine |
| 11/13/1984 | CA1177694A1 Track work train |
| 11/13/1984 | CA1177693A1 Mobile track working machine |
| 11/08/1984 | WO1984004342A1 Track skeletonizer |
| 11/06/1984 | CA1177329A1 Mobile ballast cleaning machine |
| 10/30/1984 | US4479439 Mobile arrangement and method for improving a track bed |
| 10/16/1984 | US4476786 Ballast tamping machine |
| 10/16/1984 | CA1176105A1 Method for draining a railway track and a railway train for use in said method |
| 08/21/1984 | US4466355 Railway track tamping machine |
| 08/14/1984 | US4465414 In a train of railroad cars |
| 08/14/1984 | US4464995 Method and apparatus for removing railway ties |
| 08/14/1984 | CA1172509A1 Mobile apparatus and method for cleaning ballast supporting a track |
| 08/07/1984 | US4463682 Railway track tamping machine |
| 07/17/1984 | CA1170908A1 Track working machine with a ballast removing and planing device |
| 07/10/1984 | US4458600 Railway track tamping machine |
| 07/10/1984 | CA1170501A1 Mobile track correction machine |
| 07/03/1984 | US4457237 Electronic anti-spin and anti-slip control for drive and brake of an intermittently advancing track working machine |