| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
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| 05/07/2008 | CN101173523A Self-propelled twisted harrow dredge boat and using method thereof |
| 05/07/2008 | CN101173522A Down-hole water warehouse coal slurry digging device |
| 05/02/2008 | WO2008051408A2 Compact padding attachments |
| 05/02/2008 | CA2673597A1 Compact padding attachments |
| 05/02/2008 | CA2597025A1 Pipelayer and method for loading pipelayer or excavator for transportation |
| 04/30/2008 | CN201053125Y Automatic direct-buried cable device |
| 04/30/2008 | CN101168966A Vibrating spraying grooving construction device and technique thereof |
| 04/30/2008 | CN100385079C Hinged cutting tooth of cutting wheel, cutting wheel and ditcher |
| 04/29/2008 | US7363734 Lubricated trench wall cutter with remote lubricant inlet port |
| 04/24/2008 | US20080092411 Compact padding attachments |
| 04/24/2008 | US20080092410 Pipeline padding machine |
| 04/24/2008 | DE102006045571A1 Trench filling device, has storage tank, in which filling material e.g. concrete, is contained and stored, and movable along pipe element, and vent openings provided on both sides of pipe element at lower side |
| 04/23/2008 | EP1914354A2 Excavation machine with constant power output control for torque-converter driven working element |
| 04/23/2008 | CN201050078Y Multifunctional water surface algae removing machine |
| 04/23/2008 | CN201050077Y Self-propelled chain type trench digger |
| 04/23/2008 | CN101164709A Oil-storage tank bottom sediment silt mechanized cleaning system |
| 04/17/2008 | DE102006044551B4 Arbeitsgerät zum aushubarmen Erzeugen schmaler Bodengräben Working tool for generating narrow excavation poor soil trenches |
| 04/16/2008 | CN201047056Y Flat chisel with compound structure |
| 04/15/2008 | US7356948 Cutting wheel for a trench wall cutter |
| 04/15/2008 | US7356947 Method for making a trench wall in the ground, trench wall cutter, and trench wall cutting device |
| 04/09/2008 | CN201045196Y Underwater desilting device rotating monitoring plant |
| 04/09/2008 | CN201045195Y Hydraulic spiral tee mine sump dredging device |
| 04/09/2008 | CN201045192Y Automotive digger |
| 04/01/2008 | CA2473785C Wing plow apparatus for attachment to a vehicle for carrying out a benching operation |
| 03/28/2008 | CA2561421A1 Auger stabilizer |
| 03/26/2008 | EP1903148A2 Method and container for removing polluted soil. |
| 03/26/2008 | CN101148894A Boat-carrying flushing-stirring integrated mire river dredging device |
| 03/20/2008 | US20080069643 Underground Cable Laying Apparatus |
| 03/20/2008 | US20080066350 Method and Apparatus for Excavation of a Trench |
| 03/19/2008 | EP1900881A1 Channel-positioning machine |
| 03/19/2008 | CN201036259Y Trencher |
| 03/12/2008 | CN100374663C Chain type digger for self-propelled sea cable burying machine |
| 03/12/2008 | CN100374662C Water-spraying digger for sea cable burying machine |
| 03/11/2008 | CA2351449C Methods and devices for removing dew from grass areas such as golf courses |
| 03/06/2008 | WO2008025106A1 Submergible densification cell, sediment separator and sediment densification method |
| 03/06/2008 | US20080056827 Apparatus and method for installing underground utility piping |
| 03/06/2008 | CA2662061A1 Submergible densification cell, sediment separator and sediment densification method |
| 03/05/2008 | CN201031622Y Drill of rotary dig/drill machine |
| 03/05/2008 | CN201031403Y Vertical suction and spray dredging boat |
| 03/05/2008 | CN201031402Y Cable imbedding and setting device |
| 03/05/2008 | CN101135171A Track-mounted electric rotary drill |
| 03/04/2008 | US7337563 Work vehicle having improved mounting structure of control valve unit |
| 02/28/2008 | WO2008022389A1 An improved ripper boot including a high tensile tip |
| 02/28/2008 | US20080047170 Excavator 3D integrated laser and radio positioning guidance system |
| 02/28/2008 | CA2659779A1 An improved ripper boot including a high tensile tip |
| 02/27/2008 | CN201027321Y Novel multifunctional desilting vehicle |
| 02/27/2008 | CN201027320Y Novel multifunctional dredge boat |
| 02/27/2008 | CN201027319Y Movable working table for sucking sand on water |
| 02/27/2008 | CN101130995A Excavator and sand dredger |
| 02/27/2008 | CN100371541C Gear unit and method for controlling an internal pressure in the gear unit |
| 02/21/2008 | WO2006105454A8 Trench wall ripper apparatus |
| 02/20/2008 | CN201024435Y Movable type grate cleaning machine |
| 02/20/2008 | CN201024434Y Chain trencher |
| 02/20/2008 | CN201024433Y Ditch device for optical cable burying |
| 02/20/2008 | CN201024432Y Deep foundation pit automatic soil-dredging construction device |
| 02/13/2008 | CN201021499Y Dynamic arm hole digger |
| 02/13/2008 | CN201018758Y Rotary cultivating and ditching two-purpose device |
| 02/13/2008 | CN101122138A Forest and field tectorial membrane, cable, optic cable and pipeline multifunctional inbuilt machine |
| 02/06/2008 | CN101117803A Remolding soil groove-forming plastic spreading construction technique and groove cutting machine |
| 01/31/2008 | US20080022564 Off-fall control for a trenching operation |
| 01/31/2008 | US20080022563 Cutter head for an excavator machine |
| 01/28/2008 | CA2594299A1 A cutter head for an excavator machine |
| 01/28/2008 | CA2594051A1 A cutter head for an excavator machine |
| 01/24/2008 | US20080016726 Method for Automatically Profiling Ground in Waters |
| 01/24/2008 | DE102006033835A1 Assembly to break and sieve coarse minerals e.g. rubble, stone, earth, excavated spoil has hopper with neck and rotor |
| 01/23/2008 | CN201010922Y Hydraulic continuous wall grabbing bucket single oil cylinder connecting rod zero position adjusting device |
| 01/23/2008 | CN201010921Y Hand propelled curbing channel excavator |
| 01/23/2008 | CN101109286A System for cleaning water sump settling down well |
| 01/15/2008 | US7318292 Method and device for attenuating the motion of hydraulic cylinders of mobile work machinery |
| 01/15/2008 | CA2457229C Method for making a trench wall in the ground, trench wall cutter and trench wall cutting device |
| 01/10/2008 | WO2007126940A3 Udd dragline bucket |
| 01/10/2008 | US20080008546 Dredger Cuttertooth Manipulator |
| 01/10/2008 | US20080005937 Construction machine |
| 01/09/2008 | CN201003181Y Delaminated extraction apparatus for reservoir and pond |
| 01/09/2008 | CN201003180Y Boat type hydraulic sand cutting machine |
| 01/09/2008 | CN201003179Y Reservoir deposit mud discharging device |
| 01/09/2008 | CN201003178Y Intelligent type highly effective dredging boat |
| 01/09/2008 | CN101100865A Multifunctional convolution punching and tamping groove cutting machine |
| 01/08/2008 | US7316084 Track sledding machine |
| 01/08/2008 | CA2488615C Screening laying box |
| 01/08/2008 | CA2488210C Auxilliary assembly for reducing unwanted movement of a hoist rope |
| 01/08/2008 | CA2293958C Device and process for excavating and backfilling of soil |
| 01/03/2008 | US20080000111 Excavator control system and method |
| 01/02/2008 | CN200999355Y Hydraulic sand pumper |
| 01/02/2008 | CN200999354Y Post-positioned counter-rotating trench digger |
| 01/02/2008 | CN200999353Y Concrete matchboards slotting device |
| 01/02/2008 | CN200999339Y Reservoir area pipe sand-discharging system |
| 01/02/2008 | CN101099004A Excavating machine for rocky and other soils |
| 01/01/2008 | US7315800 System and method of sub-surface system design and installation |
| 12/27/2007 | WO2007149949A1 Sensor device for interrupting irrigation |
| 12/27/2007 | CA2652603A1 Lock for securing wear parts to earth-working equipment |
| 12/26/2007 | CN200996156Y Dredging machine |
| 12/26/2007 | CN101092853A Submarine decontamination machine |
| 12/26/2007 | CN100357530C Multifunctional turn digging dynamoelectric drilling machine |
| 12/26/2007 | CN100357529C Slotted wall milling cutter |
| 12/25/2007 | US7310896 Mechanized unit for protectively encasing a utility in a trench with processed excavated trench material |
| 12/20/2007 | US20070292211 Apparatus for Spreading, Levelling and Compacting Particulate Material in Trenches |
| 12/19/2007 | CN200992716Y Large-area waterweeds salvage device |
| 12/19/2007 | CN200992715Y Asymmetrical soil-removing underwater chain-type excavating tool |
| 12/19/2007 | CN101088856A Chain-net type mechanical device for mowing and cleaning operation |