Sleeper-tamping machines

Industry

CPC
E01B27/16

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Parent Industries

EFIXED CONSTRUCTIONS E01Road, railway construction E01BPERMANENT WAY PERMANENT-WAY TOOLS MACHINES FOR MAKING RAILWAYS OF ALL KINDS E01B27/00Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track Devices therefor Packing sleepers

Current Industry

E01B27/16Sleeper-tamping machines

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Track maintenance machine and method for tamping sleepers of a track
- Patent number 12,049,731
- Issue date Jul 30, 2024
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Thomas Philipp
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Method of tamping a track in the area for a switch
- Patent number 12,043,964
- Issue date Jul 23, 2024
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Martin Buerger
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Method of operating a tamping unit of a track maintenance machine,...
- Patent number 11,834,794
- Issue date Dec 5, 2023
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Thomas Philipp
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Method and device for tamping sleepers of a track
- Patent number 11,821,146
- Issue date Nov 21, 2023
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Josef Hofstaetter
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Method and device for compaction of a track ballast bed
- Patent number 11,821,147
- Issue date Nov 21, 2023
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Fritz Kopf
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Tamping assembly for a track tamping machine
- Patent number 11,807,995
- Issue date Nov 7, 2023
- HP3 REAL GMBH
- Bernhard Lichtberger
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Track maintenance machine having a track position measuring system
- Patent number 11,802,380
- Issue date Oct 31, 2023
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Samuel Wollanek
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Tamping assembly for a track tamping machine
- Patent number 11,713,547
- Issue date Aug 1, 2023
- HP3 REAL GMBH
- Bernhard Lichtberger
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Tamping assembly for tamping sleepers of a track
- Patent number 11,608,598
- Issue date Mar 21, 2023
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Georg Seyrlehner
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Procedure for controlling a guide system of a railway construction...
- Patent number 11,566,382
- Issue date Jan 31, 2023
- MATISA Matériel Industriel SA
- Nicolas Korber
- B61 - RAILWAYS
Information Patent Grant
System and method of surveying a track
- Patent number 11,566,383
- Issue date Jan 31, 2023
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Samuel Wollanek
- B61 - RAILWAYS
Information Patent Grant
Tamping assembly for tamping sleepers of a track
- Patent number 11,566,381
- Issue date Jan 31, 2023
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Silvio Stoff
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Tamping unit for tamping sleepers of a track
- Patent number 11,549,220
- Issue date Jan 10, 2023
- Piasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Nikolaus Matzinger
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Method and device for compacting a track ballast bed
- Patent number 11,542,666
- Issue date Jan 3, 2023
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Thomas Philipp
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Vibration piston arrangement in the squeezing cylinder of a track t...
- Patent number 11,179,750
- Issue date Nov 23, 2021
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Thomas Philipp
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Coil-oscillator vibration unit for rail workhead
- Patent number 11,139,728
- Issue date Oct 5, 2021
- HARSCO TECHNOLOGIES LLC
- Reza Sami
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Tamping unit and method for tamping sleepers of a track
- Patent number 11,105,047
- Issue date Aug 31, 2021
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Heinz Springer
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Tamping machine with synchronized hydraulic motors
- Patent number 11,072,891
- Issue date Jul 27, 2021
- MATISA Matériel Industriel SA
- Joerg Ganz
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Tamping unit for tamping sleepers of a track
- Patent number 11,053,644
- Issue date Jul 6, 2021
- Piasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Thomas Philipp
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Linear actuator for rail applications
- Patent number 10,975,526
- Issue date Apr 13, 2021
- HARSCO TECHNOLOGIES LLC
- Syed Reza Sami
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Method for compacting the ballast bed of a track, and tamping unit
- Patent number 10,914,040
- Issue date Feb 9, 2021
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Josef Hofstaetter
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Workhead assembly for rail applications
- Patent number 10,844,550
- Issue date Nov 24, 2020
- HARSCO TECHNOLOGIES LLC
- Victor Vargas
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Tamping unit and method for tamping a track
- Patent number 10,808,362
- Issue date Oct 20, 2020
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Georg Seyrlehner
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Tamping unit and method for tamping a track
- Patent number 10,633,801
- Issue date Apr 28, 2020
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Ronald Steiner
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Method for determining vertical and lateral position faults of a tr...
- Patent number 10,619,313
- Issue date Apr 14, 2020
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Leopold Fruehwirt
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Method for underfilling a switch point
- Patent number 10,619,312
- Issue date Apr 14, 2020
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Gerard Lintz
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Tamping unit
- Patent number 10,563,358
- Issue date Feb 18, 2020
- PLASSSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H.
- Florian Hoefler
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Tamping unit for tamping sleepers of a track
- Patent number 10,421,101
- Issue date Sep 24, 2019
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
- Florian Hoefler
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Coil-oscillator vibration unit for rail workhead
- Patent number 10,404,148
- Issue date Sep 3, 2019
- HARSCO TECHNOLOGIES LLC
- Reza Sami
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Rail clamp
- Patent number 10,358,150
- Issue date Jul 23, 2019
- Harsco Corporation
- Eric Carter
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
DEVICE FOR POSITIONING TRACK PROCESSING TOOLS ON A TRACK
- Publication number 20240384477
- Publication date Nov 21, 2024
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H
- Andreas Obernhuber
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
ON-TRACK MAINTENANCE MACHINE AND METHOD FOR OPERATING THE MACHINE
- Publication number 20240318386
- Publication date Sep 26, 2024
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H.
- Johannes MAX-THEURER
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TAMPING UNIT FOR TAMPING SLEEPERS OF A TRACK
- Publication number 20240102251
- Publication date Mar 28, 2024
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H
- Herbert Woergoetter
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TRACK MAINTENANCE MACHINE AND MEASUREMENT METHOD FOR A TRACK MAINTE...
- Publication number 20230349106
- Publication date Nov 2, 2023
- Plasser American Corporation
- James Resio
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
MACHINE AND METHOD WITH A TAMPING UNIT
- Publication number 20230257939
- Publication date Aug 17, 2023
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H
- Thomas Philipp
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
REAL-TIME DETECTING SYSTEM FOR THE MECHANICAL QUALITY STATE OF BALL...
- Publication number 20230193566
- Publication date Jun 22, 2023
- BEIJING JIAOTONG UNIVERSITY
- Liang GAO
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TAMPING MACHINE, RAIL WORKS TRAIN AND METHOD FOR OPERATING SUCH A T...
- Publication number 20230142608
- Publication date May 11, 2023
- MATISA MATERIEL INDUSTRIEL SA
- Gabriele CASAS
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
ROUTE MAINTENANCE SYSTEM AND METHOD
- Publication number 20230121770
- Publication date Apr 20, 2023
- NORDCO INC.
- Allan IRION
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
APPARATUS FOR TRACK MACHINING, METHOD FOR OPERATING THE APPARATUS F...
- Publication number 20230113067
- Publication date Apr 13, 2023
- ROBEL BAHNBAUMASCHINEN GMBH
- Gregor Schmid
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
MACHINE AND METHOD FOR STABILISING A BALLAST TRACK
- Publication number 20220403605
- Publication date Dec 22, 2022
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H.
- Bernhard ANTONY
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
PROCESSING SYSTEM AND METHOD FOR CARRYING OUT TRACK WORK
- Publication number 20220379938
- Publication date Dec 1, 2022
- ROBEL BAHNBAUMASCHINEN GMBH
- Gregor Schmid
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TAMPING TINE AND METHOD FOR TAMPING A TRACK
- Publication number 20220145548
- Publication date May 12, 2022
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H.
- MARTIN BUERGER
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TRACK MAINTENANCE MACHINE AND METHOD FOR TAMPING SLEEPERS OF A TRACK
- Publication number 20220056647
- Publication date Feb 24, 2022
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Thomas PHILIPP
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TAMPING ASSEMBLY FOR TAMPING SLEEPERS OF A TRACK
- Publication number 20220034043
- Publication date Feb 3, 2022
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Thomas PHILIPP
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
METHOD AND DEVICE FOR TAMPING SLEEPERS OF A TRACK
- Publication number 20210292977
- Publication date Sep 23, 2021
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Josef HOFSTAETTER
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
METHOD AND MACHINE OF TAMPING A TRACK IN THE AREA FOR A SWITCH
- Publication number 20210156094
- Publication date May 27, 2021
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GMBH
- MARTIN BUERGER
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
METHOD AND SYSTEM FOR MONITORING A TRACK LINE
- Publication number 20210140122
- Publication date May 13, 2021
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GMBH
- KRZYSZTOF WILCZEK
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TAMPING UNIT FOR TAMPING SLEEPERS OF A TRACK
- Publication number 20210102344
- Publication date Apr 8, 2021
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H
- NIKOLAUS MATZINGER
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Application
PROCEDURE FOR CONTROLLING A GUIDE SYSTEM OF A RAILWAY CONSTRUCTION...
- Publication number 20210010207
- Publication date Jan 14, 2021
- MATISA MATERIEL INDUSTRIEL SA
- NICOLAS KORBER
- B61 - RAILWAYS
Information Patent Application
TAMPING ASSEMBLY FOR A TRACK TAMPING MACHINE
- Publication number 20210010206
- Publication date Jan 14, 2021
- HP3 REAL GMBH
- Bernhard Lichtberger
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
TAMPING ASSEMBLY FOR A TRACK TAMPING MACHINE
- Publication number 20210002831
- Publication date Jan 7, 2021
- HP3 REAL GMBH
- Bernhard Lichtberger
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TAMPING ASSEMBLY FOR TAMPING SLEEPERS OF A TRACK
- Publication number 20200392671
- Publication date Dec 17, 2020
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GMBH
- SILVIO STOFF
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Application
A METHOD OF OPERATING A TAMPING UNIT OF A TRACK MAINTENANCE MACHINE...
- Publication number 20200392672
- Publication date Dec 17, 2020
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GMBH
- Thomas PHILIPP
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Application
COIL-OSCILLATOR VIBRATION UNIT FOR RAIL WORKHEAD
- Publication number 20200169154
- Publication date May 28, 2020
- HARSCO TECHNOLOGIES LLC
- Reza Sami
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Application
TAMPING ASSEMBLY FOR TAMPING SLEEPERS OF A TRACK
- Publication number 20200157745
- Publication date May 21, 2020
- Plasser & Theurer Export von Bahnbaumaschinen GmbH
- Georg SEYRLEHNER
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
METHOD AND DEVICE FOR COMPACTING A TRACK BALLAST BED
- Publication number 20200141063
- Publication date May 7, 2020
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT GMBH
- THOMAS PHILIPP
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TAMPING TOOL
- Publication number 20200018018
- Publication date Jan 16, 2020
- Trackmate LLC
- John Klippel
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TAMPING UNIT FOR TAMPING SLEEPERS OF A TRACK
- Publication number 20190271119
- Publication date Sep 5, 2019
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H.
- Thomas PHILIPP
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Application
TAMPING UNIT AND METHOD FOR TAMPING SLEEPERS OF A TRACK
- Publication number 20190234025
- Publication date Aug 1, 2019
- Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H
- Heinz SPRINGER
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
TESTING DEVICE AND METHOD FOR TESTING A TAMPING UNIT
- Publication number 20190137356
- Publication date May 9, 2019
- Plasser & Theurer Export von Bahnbaumaschinen Gese llschaft m.b.H.
- Thomas PHILIPP
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Sleeper-tamping machines

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Track maintenance machine and method for tamping sleepers of a track

Method of tamping a track in the area for a switch

Method of operating a tamping unit of a track maintenance machine,...

Method and device for tamping sleepers of a track

Method and device for compaction of a track ballast bed

Tamping assembly for a track tamping machine

Track maintenance machine having a track position measuring system

Tamping assembly for a track tamping machine

Tamping assembly for tamping sleepers of a track

Procedure for controlling a guide system of a railway construction...

System and method of surveying a track

Tamping assembly for tamping sleepers of a track

Tamping unit for tamping sleepers of a track

Method and device for compacting a track ballast bed

Vibration piston arrangement in the squeezing cylinder of a track t...

Coil-oscillator vibration unit for rail workhead

Tamping unit and method for tamping sleepers of a track

Tamping machine with synchronized hydraulic motors

Tamping unit for tamping sleepers of a track

Linear actuator for rail applications

Method for compacting the ballast bed of a track, and tamping unit

Workhead assembly for rail applications

Tamping unit and method for tamping a track

Tamping unit and method for tamping a track

Method for determining vertical and lateral position faults of a tr...

Method for underfilling a switch point

Tamping unit

Tamping unit for tamping sleepers of a track

Coil-oscillator vibration unit for rail workhead

Rail clamp

Patents Applicationslast 30 patents

DEVICE FOR POSITIONING TRACK PROCESSING TOOLS ON A TRACK

ON-TRACK MAINTENANCE MACHINE AND METHOD FOR OPERATING THE MACHINE

TAMPING UNIT FOR TAMPING SLEEPERS OF A TRACK

TRACK MAINTENANCE MACHINE AND MEASUREMENT METHOD FOR A TRACK MAINTE...

MACHINE AND METHOD WITH A TAMPING UNIT

REAL-TIME DETECTING SYSTEM FOR THE MECHANICAL QUALITY STATE OF BALL...

TAMPING MACHINE, RAIL WORKS TRAIN AND METHOD FOR OPERATING SUCH A T...

ROUTE MAINTENANCE SYSTEM AND METHOD

APPARATUS FOR TRACK MACHINING, METHOD FOR OPERATING THE APPARATUS F...

MACHINE AND METHOD FOR STABILISING A BALLAST TRACK

PROCESSING SYSTEM AND METHOD FOR CARRYING OUT TRACK WORK

TAMPING TINE AND METHOD FOR TAMPING A TRACK

TRACK MAINTENANCE MACHINE AND METHOD FOR TAMPING SLEEPERS OF A TRACK

TAMPING ASSEMBLY FOR TAMPING SLEEPERS OF A TRACK

METHOD AND DEVICE FOR TAMPING SLEEPERS OF A TRACK

METHOD AND MACHINE OF TAMPING A TRACK IN THE AREA FOR A SWITCH

METHOD AND SYSTEM FOR MONITORING A TRACK LINE

TAMPING UNIT FOR TAMPING SLEEPERS OF A TRACK

PROCEDURE FOR CONTROLLING A GUIDE SYSTEM OF A RAILWAY CONSTRUCTION...

TAMPING ASSEMBLY FOR A TRACK TAMPING MACHINE

TAMPING ASSEMBLY FOR A TRACK TAMPING MACHINE

TAMPING ASSEMBLY FOR TAMPING SLEEPERS OF A TRACK

A METHOD OF OPERATING A TAMPING UNIT OF A TRACK MAINTENANCE MACHINE...

COIL-OSCILLATOR VIBRATION UNIT FOR RAIL WORKHEAD

TAMPING ASSEMBLY FOR TAMPING SLEEPERS OF A TRACK

METHOD AND DEVICE FOR COMPACTING A TRACK BALLAST BED

TAMPING TOOL

TAMPING UNIT FOR TAMPING SLEEPERS OF A TRACK

TAMPING UNIT AND METHOD FOR TAMPING SLEEPERS OF A TRACK

TESTING DEVICE AND METHOD FOR TESTING A TAMPING UNIT