| 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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| 07/07/1992 | US5127334 Ballast tamping machine |
| 07/07/1992 | US5127333 Track maintenance machine for compacting ballast |
| 07/01/1992 | CN2108740U Miniature cleaning machine for sleeper bottom clasp chain |
| 07/01/1992 | CN1062326A Loading wagon for transporting and storing bulk material |
| 07/01/1992 | CN1062325A Loading wagon for bulk materials |
| 06/30/1992 | US5125145 Tamping tool removal system |
| 06/17/1992 | EP0490868A1 Boxcar for storing bulk material |
| 06/17/1992 | EP0490310A1 Loading wagon for transporting and storing bulk material |
| 06/16/1992 | CA1303420C Tamping tools |
| 05/20/1992 | CN1016720B Continuously advancing (non-stop) track tamping, levelling and lining machine |
| 05/20/1992 | CN1016719B Travelling on-track machine for distributing and profiling ballast of track |
| 05/19/1992 | US5113767 Continuous action ballast compacting machine |
| 05/14/1992 | WO1992008011A1 Ballast distribution, regulation and reclaiming railroad maintenance device |
| 05/13/1992 | CN1016627B Tamping unit and tamping tine for track tamping machine |
| 05/13/1992 | CN1016626B Travelling track tamping machine comprising transversely and vertically adjustable tamping units |
| 05/13/1992 | CN1016625B Travelling track tamping machine comprising transversely and vertically adjustable temping units |
| 05/05/1992 | US5109775 Ballast reconditioning apparatus with multiple excavating wheels and independent cleaning stations for increased operating speed |
| 04/29/1992 | CN1016454B Track tamping, lifting and lining machine comprising laterally displaceable tamping units |
| 04/15/1992 | EP0480321A1 Wagon for transporting ballast |
| 04/15/1992 | CN1060265A Arrangements for railway frametool |
| 04/08/1992 | CN1016197B Machine for lateral shifting of a track consisting of rails and sleepers |
| 04/08/1992 | CN1016195B Track maintenance machine with track stabilizer |
| 04/08/1992 | CN1016194B Travelling track tamping, lifting and lining machine for lifting and/or laterally shifting a track at switches and crossings |
| 04/07/1992 | US5101733 Ballast tamping machine with flexible ballast conveying tubes mounted on the carrier frame of the tamping heads to place ballast at tamping tools |
| 04/07/1992 | US5101584 Mobile ballast regulator |
| 04/01/1992 | EP0478531A1 Device for placing on rails a tool-carrying frame |
| 03/31/1992 | US5099766 Ballast wagon for reviewing railway ballast with rotary storage drums |
| 03/24/1992 | US5097608 Ballast regulator |
| 03/18/1992 | EP0417091A4 Aqueous coating compositions |
| 03/10/1992 | US5094018 Mobile machine for receiving and distributing track ballast |
| 03/05/1992 | WO1992003617A1 Rotary ballast wagon |
| 02/25/1992 | US5090484 Mobile ballast cleaning machine arrangement |
| 02/25/1992 | US5090483 Ballast separating device for ballast cleaning machine |
| 02/25/1992 | US5090329 Reference system for track working machine |
| 02/18/1992 | CA1295885C Machine to restore railway road beds with a continuous endless-conveyor riddle |
| 02/04/1992 | US5084989 Railroad |
| 02/04/1992 | CA1295188C Ballast cleaning machine with compacting device |
| 01/21/1992 | CA1294492C Ballast tamping machine |
| 01/21/1992 | CA1294491C Mobile track switch working machine |
| 01/15/1992 | EP0439473A4 Improved tamping blade with improved inserts |
| 11/27/1991 | CN2089481U Screw sludge draining device for sreen cleaning machine |
| 11/13/1991 | CN2088561U Hydranlic miniature sleeper base screen scarifier |
| 11/13/1991 | CN1056140A Track tamping machine having tamping units displaceable in direction transversely of the track |
| 11/06/1991 | EP0455179A2 Track tamping machine with in transverse direction of the track displaceable tamping units |
| 11/06/1991 | CN1055976A Three-sleeper tamping unit for track tamping machines |
| 11/06/1991 | CN1014619B Mobile machine of levelling, ling and tamping track switch |
| 10/17/1991 | WO1991015630A1 Dust suppression system for railroad track ballast cleaning apparatus |
| 10/15/1991 | CA1290619C Railway track renewal system featuring a new sleeper-only supported articulated unit |
| 10/09/1991 | CN1055213A Travelling on-track machine for distributing and profiling the ballast |
| 10/02/1991 | CN1055026A Machine for distributing and grading of ballast |
| 10/02/1991 | CN1055025A Machine for distributing and grading of bedding ballast |
| 10/01/1991 | US5052306 Mobile track position correcting and tamping machine |
| 10/01/1991 | US5052133 Mobile ballast regulating machine |
| 10/01/1991 | US5052132 Ballast distributing and planing machine |
| 09/17/1991 | US5048425 Ballast tamping unit for mounting on a tamping machine and a tamping tool therefor |
| 09/11/1991 | CN1054461A Continuously advancing track maintenance machine for consolidating ballast bed of railroad track |
| 09/11/1991 | CN1054460A Continuously advancing track maintenance machine for consolidating ballast bed |
| 09/11/1991 | CN1054459A Track maintenance machine for consolidating the ballast bed |
| 09/10/1991 | US5046430 Tamping mechanism of tie-tamping outfit |
| 09/10/1991 | US5046270 Mobile ballast clearing and planing machine |
| 09/04/1991 | CN1054281A Track maintenance machine for ballast bed treatment |
| 08/29/1991 | DE4104877A1 Bulk material rail wagon - is open upwards and has delivery device running longitudinally in its lower part |
| 08/28/1991 | CN1054048A Transport wagon for loose bulk goods |
| 08/28/1991 | CN1013693B Electric tamper |
| 08/21/1991 | EP0442094A1 Bulk goods handling wagon |
| 08/07/1991 | EP0439473A1 Improved tamping blade with improved inserts. |
| 08/07/1991 | CA2033866A1 Track maintenance machine for compacting ballast |
| 08/06/1991 | CA1287268C Ballast cleaning machine |
| 08/06/1991 | CA1287267C Mobile ballast cleaning apparatus |
| 08/06/1991 | CA1287266C Mobile installation for cleaning ballast and subsequently tamping a corrected track |
| 08/06/1991 | CA1287265C Box car |
| 08/06/1991 | CA1287264C Track leveling and ballast tamping machine |
| 08/06/1991 | CA1287263C Mobile track renewal machines |
| 08/06/1991 | CA1287261C Mobile track renewal installation |
| 07/26/1991 | WO1991011557A1 Method and apparatus for cleaning ballast |
| 07/17/1991 | EP0436757A1 Railway track tamping machine |
| 07/16/1991 | US5031542 Mobile track tamping machine |
| 07/09/1991 | US5029649 Ballast reconditioning apparatus |
| 07/09/1991 | US5029532 Control cab |
| 06/26/1991 | CN2079628U Sieve belt of cleaner for cleaning under sleeper |
| 06/05/1991 | EP0430118A1 Railway freight car |
| 06/05/1991 | EP0429714A1 Railwagon for loading bulk-goods |
| 06/05/1991 | EP0429713A1 Mobile railway installation for the transport of bulk material |
| 06/05/1991 | EP0429693A1 Storage tank |
| 06/05/1991 | EP0393198A4 Tamping device for sleeper tamping machine |
| 05/29/1991 | EP0428781A1 Track maintenance machine for distributing and profiling the track bedding ballast |
| 05/15/1991 | CN1051406A Ballast lifting and spreading machine |
| 05/08/1991 | EP0426004A1 Machine for collecting and redistributing ballast |
| 05/08/1991 | CN1051220A Reference system for railway track machines |
| 05/02/1991 | EP0424811A1 Reference system for railway track working machines |
| 05/02/1991 | EP0424552A1 Process for consolidation of ballast ways and of other loose material constructions |
| 04/24/1991 | EP0424322A1 Railway ballast tamping machine |
| 04/24/1991 | CN2075671U Scrape chain for pillow bottle cleaning machine |
| 04/16/1991 | US5007350 Universal mobile track leveling, lining and tamping machine |
| 04/16/1991 | US5007349 Mobile track leveling, lining and tamping machine |
| 04/09/1991 | CA1282640C Railway track tamping machine |
| 04/02/1991 | CA1282282C Railway track tamping machine |
| 03/27/1991 | EP0418428A1 Mobile frame on rails with dust aspiration device |
| 03/20/1991 | EP0417091A1 Aqueous coating compositions. |
| 03/13/1991 | EP0416193A1 Railway track tamping, levelling and lining machine with laterally adjustable tamping units |