Patents
Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683)
02/2002
02/13/2002CN2476589Y Centrifugal ditching machine
02/05/2002US6343559 Transportation system for dredged material and method of levy building
02/01/2002CA2354376A1 Material treatment method and apparatus
01/2002
01/29/2002US6341435 Ditch digging and cleaning system having dual dispersing members
01/24/2002WO2002005978A1 Recycled material and mixing machinery
01/23/2002EP1173643A1 Screening apparatus
01/16/2002EP1171670A1 An apparatus for laying underground electric cables
01/15/2002US6338209 Tilling machine, method of use and method of gardening
01/10/2002WO2002002399A1 Device on a subsea vehicle
01/08/2002US6336280 Self-propelled rotary excavator
01/02/2002EP1167681A1 Method and apparatus for laying a conduit in the ground
01/02/2002EP1167637A2 Trenching apparatus
01/02/2002EP1167636A1 Device for the introduction of a conduit
01/02/2002EP1167635A1 Arrangement for inserting a conduit
12/2001
12/27/2001WO2001098140A1 Submarine system for sea-bed work
12/26/2001CN2467583Y Channeling wall forming machine
12/26/2001CN1328196A Ditcher and digging method thereof
12/25/2001CA2271528C Pipeline trenching and laying device
12/19/2001CN1076423C Method and appts. for backfilling padded underground structures
12/13/2001US20010049891 Excavator for a ditch and excavating method therefor
12/12/2001EP1162317A2 Excavator for a ditch and excavating method therefor
12/11/2001US6328503 Method for constructing an underground structure
12/06/2001WO2001092650A1 Underwater earth moving machine
12/06/2001WO2001092649A1 Underwater remotely operated vehicle
12/06/2001WO2001092647A1 Trenching equipment
12/06/2001DE10027453A1 Highway service machine frame mounts boom with conveyor to move out from machine width limits to working position alongside machine with boom-fitted cutter and excavator units.
12/06/2001DE10025975A1 Abrasive belt grinding wagon for loading and unloading ships with bulk goods comprises mobile frame enclosing conveyor belt and belt feeder pivoted on frame which can be raised to connect with feed roller or grinding roller
12/05/2001EP1012410A4 Digging machine
12/04/2001US6325924 Reactor vessel for removing contaminants from dredge material in an underwater environment
11/2001
11/22/2001US20010043839 Method of laying data cables and the like in underground pipes and pipe-cable combinations
11/20/2001US6318930 Efficient method and pulverizer for pipeline trench padding
11/20/2001US6318284 Method and installation for carrying out operations under water with a crane on a fixed pontoon
11/20/2001US6318006 Pusher trencher
11/20/2001US6318005 Dredge with improved auger shroud
11/13/2001US6315129 Power sifter
11/08/2001US20010038236 Open cast mining device and apparatus for testing the cutting minability of critical material
11/07/2001CN2458341Y Machine for cleaning water plants
11/06/2001US6312194 Device for excavating and redepositing earth
11/06/2001US6311784 Energy storage ripping device
10/2001
10/31/2001DE10117110A1 Machine for laying pipes on sea bed comprises long floating hull moored so that current is channelled through nozzles in its base, producing ditch into which pipe is laid
10/31/2001CN1074077C Endless chain type cutter
10/25/2001WO2001079614A1 Equipments for excavating the underground
10/24/2001EP1147365A1 A cutting assembly and related apparatuses
10/24/2001EP1147265A1 Device for breaking up the outer layers of the ground
10/24/2001CN1073665C Arch structure constructing method
10/24/2001CN1073654C Excavator for constructing underground continous wall
10/23/2001US6305879 Continuous ditch excavator
10/23/2001CA2177189C Miniature, portable, self-contained power machine
10/18/2001WO2001076984A1 Trenching machine, method of use and method of gardening
10/17/2001EP0883718B1 Dredging apparatus
10/17/2001CN2454419Y Stepped grid automatic sand-removing apapratus
10/16/2001US6302257 Self propelled backfilling apparatus with controllable steering of material stream
10/11/2001WO2001075236A1 Submarine plough
10/09/2001US6299381 Trencher plow for laying pipe
10/04/2001WO2001073280A1 Method and apparatus for determining the depth of acceptable sediment removal from a body of water
10/02/2001CA2310798C Clam bucket for use in pipeline padding
09/2001
09/27/2001WO2001071108A1 Shoe mechanism for an excavating wheel and associated method
09/27/2001DE10107163A1 Verfahren und Vorrichtung zur Anzeige eines Objektes auf einem Erdbearbeitungsgelände Method and apparatus for displaying an object on a Erdbearbeitungsgelände
09/26/2001CN1071832C Excavating apparatus and method
09/20/2001WO2001068993A1 Material separating apparatus and method for using same
09/20/2001WO2001068991A1 Drilling apparatus for hard ground
09/20/2001WO2001068990A1 Drilling apparatus for hard ground
09/20/2001WO2001033158A3 Blades for digging assemblies, related apparatuses and methods for use thereof
09/20/2001DE10019748C1 Device, to test ability to cut and mine critical material, has two-track running gear, frame with drive assembly, control platform and horizontal cutting roller connected to conveyor
09/20/2001CA2403184A1 Drilling apparatus for hard ground
09/20/2001CA2403182A1 Apparatus for drilling into hard ground
09/20/2001CA2402518A1 Material separating apparatus and method of using same
09/19/2001CN1071392C Excavator for constructing underground continuous wall and construction method using the excavator
09/13/2001WO1997016605A3 Process and apparatus for excavation using an earth cutter, and construction filling in the excavation
09/13/2001DE19941801A1 Milling roller for mining recovery unit is stably formed and in area of larger conveyed material presence has adequate space between roller cover and cutting circle diameter for onward conveyance of material
09/12/2001EP0677129B1 Sensor positioning apparatus for trench excavator
09/12/2001CN1070973C Controller for excavators
09/12/2001CN1070972C 沟道壁切割机 Trench wall cutting machine
09/07/2001WO2001065014A1 A ripper assembly
08/2001
08/30/2001WO2001063058A1 Vehicle for unearthing buried objects
08/29/2001CN1310270A Manhole dirt cleaning truck
08/28/2001US6282477 Method and apparatus for displaying an object at an earthworking site
08/28/2001US6280119 Apparatus and method for placing and engaging elongate workpieces
08/21/2001US6276758 Surface miner with tilting superstructure for depth control
08/21/2001CA2108013C Improvements in or relating to underwater excavation apparatus
08/16/2001US20010013182 Apparatus for digging trenches
08/14/2001US6273767 Machine for performing work on land and/or in water
08/14/2001US6273642 Buoyant propulsion underwater trenching apparatus
08/14/2001US6273637 Dual wheel trench compactor
08/07/2001US6270164 Cutting tooth for earthworking
08/02/2001DE10004267A1 Vorrichtung zur Beseitigung von Ablagerungen auf Gewässerböden A device for removal of deposits on aquatic soils
08/01/2001EP1119666A1 Method and pulverizer for pipeline trench padding
08/01/2001EP1119665A1 Excavation assembly, apparatus and method of operating the same
08/01/2001EP1119663A1 Tubular structure
08/01/2001CN2440844Y Apparatus for fishing for underwater garbage
07/2001
07/31/2001US6266900 Backfill blade apparatus
07/26/2001US20010009077 Right of way grader
07/26/2001DE10037320A1 Laying pipeline in water by assembling pipe sections out of water and laying them in trench produced by cutter shoe sealed on to pipe at front of pipeline
07/25/2001CN2440061Y Grooving apparatus
07/25/2001CN1304852A Drilling well type sand-rotating twin-hull ship
07/12/2001WO2001049947A1 Submarine plough and plough share for such plough
07/12/2001WO2001049946A1 Submarine plough
07/10/2001CA2039022C Compact padding machine
07/04/2001CN2437739Y Underground continuous wall hole forming machine
06/2001
06/26/2001US6249993 Trencher assembly utilizing a direct drive motor
1 ... 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 ... 67