| 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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| 08/11/1981 | US4282663 Track working machine with a ballast plow arrangement |
| 08/11/1981 | CA1106698A1 Track surfacing machine and method |
| 06/30/1981 | US4275659 Apparatus for operating transport vehicles movable on a track carried by a train of railroad cars |
| 05/20/1981 | EP0028668A1 Train for stabilising a railway track |
| 05/19/1981 | US4267777 Mobile ballast cleaning machine |
| 05/19/1981 | CA1101276A1 Tamping tool |
| 05/12/1981 | US4266615 Self-propelled ballast cleaning machine |
| 05/12/1981 | US4266353 Device for plowing ballast |
| 05/12/1981 | US4266352 Ballast side plow |
| 05/12/1981 | US4266351 Center plow for railroad ballast |
| 05/06/1981 | EP0028084A1 Apparatus and method for inserting a fabric web into the ballast of a rail road track |
| 04/28/1981 | US4263851 Mobile ballast cleaning machine |
| 04/21/1981 | CA1099592A1 Mobile ballast cleaning machine |
| 03/31/1981 | US4258627 Ballast tamping |
| 03/24/1981 | US4257331 Track surfacing machine |
| 03/10/1981 | CA1097136A1 Apparatus and method for replacing rail fastening elements and, optionally, rails |
| 02/10/1981 | US4249468 Mobile track tamping machine |
| 02/10/1981 | US4249325 Track working machine for distributing and shaping the ballast of a railroad bed |
| 02/10/1981 | CA1095333A1 Mobile track leveling, lining and tamping machine |
| 02/03/1981 | US4248155 Method for obtaining a controlled degree of ballast compaction in the tamping and leveling of a track |
| 02/03/1981 | US4248154 Mobile track tamping machine with lifting and lining equipment |
| 02/03/1981 | CA1094885A1 Mobile track surfacing machine |
| 02/03/1981 | CA1094884A1 Mobile apparatus for continuously laying track |
| 01/20/1981 | US4245703 Mobile ballast cleaning machine |
| 01/13/1981 | CA1093387A1 Method for removing ballast from railroad tracks |
| 12/23/1980 | US4240352 Mobile track tamper |
| 12/10/1980 | EP0019984A1 Train for the renewal of a railway track |
| 12/09/1980 | CA1091094A1 Mobile track tamper |
| 12/09/1980 | CA1091093A1 Mobile track leveling, lining and tamping apparatus |
| 12/09/1980 | CA1091092A1 Self-propelled track working machine |
| 12/02/1980 | CA1090657A1 Apparatus for tamping or packing the bed of railway tracks |
| 11/25/1980 | US4235029 Machine for cleaning railway tracks |
| 10/28/1980 | CA1088375A1 High speed production tamper compactor |
| 10/21/1980 | CA1087921A1 Ballast excavation chain arrangement |
| 10/14/1980 | US4227324 Mobile apparatus for distributing and shaping ballast of a railroad bed |
| 09/30/1980 | US4224874 Alert system in a mobile track surfacing machine |
| 09/09/1980 | US4221169 Track tamper |
| 08/26/1980 | US4218978 Apparatus for tamping or packing the bed of railway tracks |
| 07/29/1980 | CA1082521A1 Method and apparatus for obtaining a controlled degree of ballast compaction in the tamping and leveling of a track |
| 07/08/1980 | CA1081048A1 Carriage for transport and spread of ballast and bench material for railroad embankment maintenance |
| 07/01/1980 | CA1080545A1 Ballast regulator side plow |
| 06/17/1980 | CA1079574A1 Self-propelled ballast cleaning machine for on-and off-track work |
| 05/20/1980 | US4203493 Railway ballast cleaning apparatus |
| 05/20/1980 | US4203367 Lift and line beam extension |
| 04/08/1980 | US4196532 Ballast regulator side plow |
| 04/01/1980 | CA1074620A1 Mobile apparatus for continuous track renewal |
| 03/25/1980 | CA1074183A1 Device for the vertical and lateral displacement of railway track |
| 03/19/1980 | EP0008743A1 Method for improving the vibration absorption of a railway track supported on a bed of ballast and a track structure obtained by applying such a method |
| 03/18/1980 | CA1073661A1 Needle indicator for rail liner |
| 03/11/1980 | US4192237 Mobile track surfacing machine |
| 02/26/1980 | US4190394 Method for loading and unloading railroad cars |
| 02/05/1980 | US4186804 Ballast excavating chain arrangement |
| 01/23/1980 | EP0006870A1 Rail support with provision for ballast |
| 01/15/1980 | CA1069763A1 Ballast cleaner |
| 01/01/1980 | CA1068986A Mobile track tamping machine |
| 01/01/1980 | CA1068985A Mobile leveling, lining and tamping machine |
| 12/18/1979 | US4178995 Self-propelled ballast cleaning machine for on- and off-track work |
| 10/31/1979 | EP0004985A1 Train for the renewal of a railway track |
| 10/23/1979 | CA1064696A1 Process and apparatus for measuring the geometric state of a railway track during correction thereof |
| 10/16/1979 | US4170942 Cellulose fibers, cottonseed hulls, activated caron, limestone |
| 09/11/1979 | US4167141 Percussive tool with replaceable work bit |
| 09/11/1979 | CA1062082A1 Ballast cleaning device |
| 08/28/1979 | US4165694 Mobile track leveling, lining and tamping apparatus |
| 08/28/1979 | US4165693 Mobile track leveling, lining and tamping apparatus |
| 07/31/1979 | CA1059373A1 Ballast tamping machine |
| 07/10/1979 | US4160419 Tamping tool |
| 07/10/1979 | US4160418 Mobile apparatus for continuous track renewal |
| 07/03/1979 | CA1057580A1 Switch lifting frame |
| 06/19/1979 | CA1056758A1 Freight train |
| 06/12/1979 | CA1056211A1 Tamping head |
| 06/12/1979 | CA1056210A1 Apparatus for laying track |
| 06/12/1979 | CA1056134A1 Apparatus for removing a tamping tool from its holder |
| 05/22/1979 | US4155176 Process and apparatus for measuring the geometric state of a railway track during correction thereof |
| 05/08/1979 | US4152991 Ripping apparatus |
| 05/08/1979 | US4152989 Mobile apparatus for continuously laying ties |
| 03/27/1979 | CA1051268A1 Track tamper and vibratory drive mechanism |
| 01/30/1979 | US4136618 Railroad lifting device for ballast cleaning and levelling machines |
| 01/30/1979 | CA1047274A1 Method and apparatus for indicating the density of ballast |
| 01/25/1979 | WO1979000031A1 Rail support with provision for ballast |
| 01/23/1979 | CA1046850A1 Track ballast tamping unit |
| 01/23/1979 | CA1046849A1 Mobile track tamping machine |
| 01/23/1979 | CA1046848A1 Mobile track tamping machine |
| 01/23/1979 | CA1046847A1 Reference system for a track working machine |
| 01/16/1979 | US4134342 Ballast tamping apparatus |
| 01/09/1979 | US4133388 Ballast cleaning and levelling machine |
| 01/09/1979 | CA1045903A1 Endless ballast conveyor chain |
| 01/09/1979 | CA1045902A1 Mobile track tamping and track position correction machine |
| 01/09/1979 | CA1045901A1 Mobile track tamper |
| 01/09/1979 | CA1045900A1 Ballast tamping implement on a mobile track tamper |
| 01/09/1979 | CA1045899A1 Track surfacing |
| 12/19/1978 | US4130063 Tamping head |
| 12/19/1978 | US4130062 Apparatus for obtaining a controlled degree of ballast compaction in the tamping and leveling of a track |
| 12/12/1978 | CA1044076A1 Ballast tamping tool |
| 12/05/1978 | CA1043631A1 Mobile apparatus for non-stop track leveling and ballast tamping |
| 12/05/1978 | CA1043630A1 Mobile track tamper |
| 12/05/1978 | CA1043629A1 Mobile track tamping machine |
| 12/05/1978 | CA1043628A1 Mobile track tamping machine |
| 12/05/1978 | CA1043627A1 Shoulder tamping lifting jack |
| 11/28/1978 | US4127069 Railroad track shifting machine with shift limiting device |
| 11/14/1978 | US4125075 High speed production tamper compactor |