| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
|---|
| 09/09/2002 | CA2340211A1 Soil spreading scraper |
| 09/04/2002 | EP1012409B1 Device and method for excavating and redepositing earth |
| 09/04/2002 | CN2509236Y Underground drill bucket drilling piston type pumping sludge equipment |
| 09/04/2002 | CN1090268C Method and device for dumping dredged material |
| 09/04/2002 | CN1090267C Block for mortarless construction of wall |
| 08/29/2002 | US20020116844 Laterally adjustable, low profile trench-digging machine |
| 08/28/2002 | EP1234079A1 Ploughs |
| 08/28/2002 | CN1366115A Water injection technique for excavating ditch on sand-running ground |
| 08/22/2002 | WO2002064895A1 Safeway deep utility ditch cleaning machine |
| 08/22/2002 | US20020112381 Method and system for supporting construction of underground continuous wall and excavator therefor |
| 08/22/2002 | US20020112380 Combination trencher and vehicle |
| 08/20/2002 | US6435772 Submarine plough |
| 08/20/2002 | US6435766 Method and apparatus for ground working |
| 08/20/2002 | US6435286 Apparatus and method for detecting a location and an orientation of an underground boring tool |
| 08/20/2002 | US6434861 Apparatus for backfilling |
| 08/14/2002 | EP1231327A1 Milling tool for the cutting of hard ground and of sticky ground |
| 08/13/2002 | US6430848 Underwater excavation apparatus |
| 08/07/2002 | EP1228340A2 Blade for digging assemblies , related apparatuses and methods for use thereof |
| 08/07/2002 | CN1362558A Construction-support method of underground continuous wall and construction support system and digging machine used thereof |
| 08/01/2002 | US20020100192 Plow for installing utility lines |
| 07/31/2002 | EP1227343A2 Trenchless underground boring system with boring tool location |
| 07/31/2002 | EP1227189A2 Underdrain excavation apparatus |
| 07/25/2002 | DE10115095C1 Chain-and-bucket excavator comprises an excavator bucket rotatably positioned with a coupling plate on a fixing hole of an inner chain side wall and movably connected to a subsequent inner chain side wall |
| 07/24/2002 | CN2501916Y Cleaning machine for garbage of riverbed |
| 07/24/2002 | CN2501915Y Soil throwing device of ditch digging machine |
| 07/23/2002 | US6421938 Endless chain type cutter |
| 07/17/2002 | CN1358909A Screw type ditching, dreding and loading apparatus |
| 07/16/2002 | US6418647 Feeding device for a ditch digging and cleaning system |
| 07/16/2002 | US6418646 Machine for digging into the lower layers of the ground |
| 07/16/2002 | US6418644 Apparatus and method for padding the ground below a duct using excavated soils, equipment for compacting soil below a duct, and a soil-compacting mechanism |
| 07/10/2002 | CN2499577Y Walking type ditcher for mine |
| 07/09/2002 | US6415532 Drive sprocket for a roller chain for material removal implement |
| 07/04/2002 | WO2002052105A1 Ballast removal method and apparatus |
| 06/27/2002 | WO2001011181A9 Automated lubricant dispensing system and method for a horizontal directional drilling machine |
| 06/26/2002 | EP1216330A1 Method and working machine for laying cables, pipes or the like |
| 06/26/2002 | EP1015704A4 Pneumatic excavator |
| 06/19/2002 | EP1215344A1 Digger machine and relative device for the lifting of the excavation material |
| 06/19/2002 | EP1214476A1 Vehicular arm assembly |
| 06/19/2002 | EP1119666A4 Method and pulverizer for pipeline trench padding |
| 06/19/2002 | CN2495686Y Automatic ditch-digger for geographic engineering |
| 06/19/2002 | CN1086439C Ach structure |
| 06/18/2002 | US6405460 Excavator bucket attachment |
| 06/13/2002 | US20020071724 Submarine plough |
| 06/12/2002 | EP0790356B1 Controller for excavators |
| 06/12/2002 | CN2494838Y Semi-automatic two-directional dredging digging machine |
| 06/11/2002 | US6401368 Method and apparatus for excavating a trench |
| 06/06/2002 | US20020066214 Underdrain excavation apparatus |
| 06/05/2002 | CN1086011C Trench excavator with sensor positioning apparatus |
| 06/04/2002 | US6398459 Apparatus for installing a silt fence |
| 06/04/2002 | US6397501 Wide multiple-chain trenching machine |
| 06/04/2002 | US6397500 Trenching plow with reciprocating action |
| 05/30/2002 | US20020062585 Continuous ditch excavator |
| 05/29/2002 | DE10105475C1 Ditch digger, has digging wheels powered through a gearing, and can be hitched to a tractor with a protective upper shrouding and lower protective plate with height adjustment |
| 05/29/2002 | CN2493649Y Soil-shifting apparatus for canal |
| 05/29/2002 | CN1085759C Process and device for precisely maintaining vertical excavation direction of subterranean curtain |
| 05/23/2002 | US20020060125 Self propelled backfilling apparatus |
| 05/23/2002 | US20020059740 Method and apparatus for dredging and transporting dredged solids |
| 05/22/2002 | EP1207331A2 Machine for laying underground pipes, electrical cables, optical fibres or similar, and device for pushing the pipes associated with this machine |
| 05/16/2002 | US20020056211 Trenching method and apparatus |
| 05/08/2002 | CN2490049Y Waterwheel-type rotary double-tailer automatic sand dredge-out mud cleaning ship |
| 05/07/2002 | US6382329 Ballast plow |
| 05/07/2002 | US6381882 Work control system for a trencher type excavator for soil cement wall |
| 05/07/2002 | US6381879 Agricultural ditching method and apparatus |
| 05/02/2002 | WO2002035016A1 Trenching method and apparatus |
| 05/01/2002 | CN1083925C Construction method of arched structure |
| 04/25/2002 | WO2002033181A1 Trenching machine |
| 04/25/2002 | WO2002033180A1 Cable and pipe burial apparatus and method |
| 04/24/2002 | EP1007795B1 Method for fitting pipes |
| 04/23/2002 | US6374519 Dredging apparatus |
| 04/18/2002 | US20020044830 Backfill and grading apparatus |
| 04/16/2002 | US6371003 Enclosures for installation on the seabed |
| 04/16/2002 | CA2245479C Apparatus and method for extracting and replacing buried pipe |
| 04/10/2002 | EP1009886B1 Submarine plough |
| 04/09/2002 | US6367177 Trench restoration apparatus |
| 04/04/2002 | US20020039520 Method for removing contaminants from dredge material in an underwater environment |
| 04/04/2002 | DE10141968A1 Machine for cleaning garden pools has suction pump with aspiration hose and filter |
| 04/04/2002 | DE10046299C1 Verfahren und Vorrichtung zur Herstellung einer Rohrbettung Method and apparatus for producing a pipe bedding |
| 04/03/2002 | CN1082115C Spiral reamer type dredger |
| 04/02/2002 | US6364029 Machine for displacing grindstones |
| 04/02/2002 | CA2277254C Dog bone chain link |
| 03/27/2002 | EP0873465B1 Trenchless underground boring system with boring tool location |
| 03/20/2002 | EP1188865A1 Methode and device for creating a bedding for pipes |
| 03/19/2002 | US6357149 Method and apparatus for determining the depth of acceptable sediment removal from a body of water |
| 03/14/2002 | WO2002020908A1 Method and apparatus for accessing underwater cables or pipes |
| 03/13/2002 | EP1186717A1 Mobile soil improving machine |
| 03/12/2002 | US6354026 Trench rig |
| 03/07/2002 | WO2002018717A1 Device for making a trench in the bottom of a water area, in particular for laying pipelines or cables |
| 03/07/2002 | WO2002018716A1 Device for making a trench in the bottom of a water area, provided with linked spray arms |
| 03/07/2002 | WO2002018715A1 Device for making a trench in the bottom of water area |
| 03/07/2002 | US20020028111 Apparatus for laying underground electric cables |
| 03/06/2002 | EP1184518A1 Mobile soil improving machine |
| 03/05/2002 | US6352393 Apparatus for transporting loosened particulate material using fluid under pressure |
| 02/28/2002 | US20020025228 Device and process for excavating and backfilling of soil |
| 02/27/2002 | EP1181419A1 Submarine plough |
| 02/27/2002 | CN1337502A Submerged dredging machine |
| 02/26/2002 | US6349488 Technical field |
| 02/21/2002 | US20020020084 Tilling machine, method of use and method of gardening |
| 02/14/2002 | WO2002012640A1 Device for opening narrow trenches and placing matching prefabricated elements |
| 02/14/2002 | US20020017041 Apparatus |
| 02/14/2002 | US20020017040 Cutting assembly and related apparatuses |