| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
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| 10/27/2009 | CA2514638C Method and trench wall cutting device for making a trench wall in the soil |
| 10/22/2009 | US20090260264 Trencher attachment |
| 10/21/2009 | CN101561518A Gas breaking and vacuum suction point probe device and method thereof |
| 10/21/2009 | CN101560782A Washing, sucking, cutting and spading integrating dredging device |
| 10/21/2009 | CN101560781A A dredging sucker |
| 10/21/2009 | CN101560780A Deepwater underwater excavation device |
| 10/14/2009 | EP2108745A2 Method and device for laying a conduit in the ground. |
| 10/14/2009 | CN201325492Y Gathering-arm tracked chassis and vehicle |
| 10/14/2009 | CN101555697A Small-sized chain trencher |
| 10/08/2009 | DE102008016673A1 Vorrichtung zum Fräsen und Mischen von Böden Apparatus for milling and mixing of soils |
| 10/07/2009 | CN101550707A An engineering machinery and its reel pipe device |
| 10/07/2009 | CN101550691A Driving device for manufacturing underground continuous wall and jointing method |
| 10/06/2009 | US7596893 Work machine |
| 09/30/2009 | CN201317949Y Sand disturbance system |
| 09/24/2009 | DE202009005774U1 Sandspülsystem Sandspülsystem |
| 09/23/2009 | CN101538873A Environment-friendly dredger dredging reamer |
| 09/23/2009 | CN100543244C River course dredging desilting screw propeller sand disturbing device |
| 09/23/2009 | CN100543243C Method for control of yellow River downstream sediment |
| 09/23/2009 | CN100543242C Riverway finishing device with sand transporting function |
| 09/22/2009 | US7591514 Cutter head for an excavator machine |
| 09/17/2009 | WO2009112596A1 Underwater leveller |
| 09/16/2009 | CN201310107Y River desilting boat |
| 09/16/2009 | CN201310106Y Electric digging machine |
| 09/16/2009 | CN101535573A Excavator 3D integrated laser and radio positioning guidance system |
| 09/10/2009 | US20090223683 Machine for removing ferrous debris |
| 09/10/2009 | US20090223215 Work machine, control system and method for controlling an engine in a work machine |
| 09/10/2009 | DE202009002182U1 Vorrichtung zum Bearbeiten einer Bodenfläche An apparatus for processing a bottom surface |
| 09/09/2009 | CN201305863Y Riverway-dredging vessel |
| 09/09/2009 | CN201305862Y Silt-beating-and-removing vessel for riverways |
| 09/09/2009 | CN101525879A Method and device for manufacturing diaphragm walls through rotary drilling |
| 09/01/2009 | CA2426575C Trenching method and apparatus |
| 08/27/2009 | DE102008010461A1 Contact pressure adjusting and/or limiting method for mounted compactor, involves detecting contact force or value related to contact force, where contact force is adjusted or limited based on detected contact force or value |
| 08/26/2009 | CN101514560A Method for controlling fast discharge of rotary drill rig |
| 08/20/2009 | US20090206041 Method for removing alluvial deposits from the bottom of a watery area |
| 08/19/2009 | EP1467030B1 Underground pipe and cable gallery which can be inspected |
| 08/19/2009 | CN201292543Y Centralization lubrication structure of multifunction rapid crusher |
| 08/19/2009 | CN201292498Y Pneumatic pick apparatus |
| 08/19/2009 | CN101507384A Cutter-head of machine for making furrows |
| 08/13/2009 | WO2009097641A1 Cultivation system and a subsoil tool |
| 08/12/2009 | CN201288349Y Cutting board of loosening machine |
| 08/12/2009 | CN201288348Y Well type crab bucket cuttingout and dredging ship |
| 08/12/2009 | CN101506438A An improved ripper boot including a high tensile tip |
| 08/12/2009 | CN100526567C Underwater digging chain |
| 08/11/2009 | US7571558 Backhoe hydraulic system |
| 08/06/2009 | DE202009005511U1 Elektrische Fräse zur Ausfräsung einer Verlegenut für Begrenzungslinien auf Sportplätzen, insbesondere auf Tennisplätzen Electrical milling for milling a laying of boundary lines on sports fields, tennis courts and in particular |
| 08/06/2009 | DE102008006211A1 Anbauverdichter Mounted compactors |
| 08/05/2009 | EP2084796A1 Apparatus for laying underground cables, tubes and like |
| 08/05/2009 | CN201284477Y On-water temperature-adjusting silt-suction platform |
| 08/05/2009 | CN201284474Y Non-power sand-discharging guiding apparatus |
| 08/05/2009 | CN100522142C Control of process humidify to produce large porous particles |
| 08/04/2009 | CA2404610C Apparatus for assembling a liner |
| 07/30/2009 | US20090188137 Autonomous excavating apparatus |
| 07/29/2009 | CN201280734Y Breaking hammer and protective casing of the breaking hammer |
| 07/29/2009 | CN201280733Y Mud-blocking curtain wall for scoop dredger construction |
| 07/23/2009 | US20090184066 Method and Apparatus for Collecting and/or Removing Sludge |
| 07/23/2009 | US20090183396 Automatically steerable trencher |
| 07/23/2009 | CA2651113A1 Tracked hydrovacuum vehicle |
| 07/21/2009 | US7562717 Culvert opening and cleaning apparatus |
| 07/21/2009 | US7562472 Work machine |
| 07/16/2009 | WO2009035960A3 On-board service tool and method for monitoring and diagnosing trencher systems |
| 07/15/2009 | CN201272986Y Electric desilting machine |
| 07/09/2009 | US20090172977 Apparatus and method for cutting a pathway |
| 07/08/2009 | EP2076632A2 Pipeline padding machine with a debris-resistant escalator assembly |
| 07/08/2009 | EP2076629A1 Submergible densification cell, sediment separator and sediment densification method |
| 07/08/2009 | CN201268857Y Soil shovel |
| 07/08/2009 | CN201268856Y Submersible ditch excavator |
| 06/30/2009 | CA2514566C Cutter and method for working the soil |
| 06/25/2009 | WO2009077786A1 Improvements in or relating to fluid jets |
| 06/25/2009 | US20090158624 Trencher control system |
| 06/25/2009 | CA2744273A1 Improvements in or relating to fluid jets |
| 06/24/2009 | CN201261895Y Multifunctional trench digging apparatus |
| 06/24/2009 | CN101466901A Lock for securing wear parts to earth-working equipment |
| 06/23/2009 | US7549241 Hydraulic control device for loader |
| 06/23/2009 | US7549240 Excavation device |
| 06/16/2009 | US7546883 Vibratory plow |
| 06/11/2009 | WO2009072855A2 Excavator |
| 06/03/2009 | EP2064394A2 Apparatus and method for widening an existing roadway |
| 05/28/2009 | WO2009066359A1 Method of excavating for enlarging bottom part and horizontal multi-spindle excavator used therefor |
| 05/28/2009 | US20090136300 Plow Blade with Water Passageway and Method of Constructing Same |
| 05/27/2009 | CN201246106Y Drill bucket with forced soil unloading function |
| 05/27/2009 | CN201245856Y Pile hole digging machine |
| 05/27/2009 | CN201245855Y Hydraulic dibhole digging machine |
| 05/27/2009 | CN101440626A Swing type deviation rectifying apparatus |
| 05/27/2009 | CN101440625A Steering propulsion unit for suction head of suction dredger |
| 05/20/2009 | CN201241350Y Self-propelled four-wheel drive cable direct-buried trench digger |
| 05/20/2009 | CN201241349Y Mining plunger type dirt clearing apparatus |
| 05/14/2009 | WO2007064693A3 Apparatus protecting vehicle with accessory when scraping edge of accessory strikes fixed object |
| 05/13/2009 | EP2057319A1 An improved ripper boot including a high tensile tip |
| 05/13/2009 | CN101429773A Sand disturbance system and method |
| 05/12/2009 | US7530185 Electronic parallel lift and return to carry on a backhoe loader |
| 05/12/2009 | CA2536125C Off-track railroad track undercutter apparatus |
| 05/12/2009 | CA2513826C Device and method for making a trench wall in the soil |
| 05/07/2009 | US20090116942 Material handling apparatus and method for operating |
| 05/06/2009 | EP2054555A2 Excavator 3d integrated laser and radio positioning guidance system |
| 05/06/2009 | CN201232214Y Snow removing and soil loosing machine |
| 05/06/2009 | CN201232211Y Mud suction concentration control apparatus for reservoir self-suction type sediment ejection pipe suction head |
| 05/06/2009 | CN201231231Y Underwater cleaner with pollution discharging function |
| 05/06/2009 | CN101424082A Technique for building quick-speed consolidated platform near water by using clay under lake |
| 04/29/2009 | EP1824576A4 Apparatus for separating particulates from a fluid stream |
| 04/29/2009 | CN201228552Y Shaft excavation machine |