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WO2000006838A9 |
A multi-purpose vessel (30) for use when recovering material from a bottom surface of a body of water. The vessel (30) includes a hull (38) and a dredge assembly (40) mounted to the hull (38). The dredge assembly (40) is adapted to recov...
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WO/2000/063500A1 |
An apparatus for laying underground electric cables, in particular for high-voltage lines, comprises a vehicle (2) towable along a trench (3) and carrying, on a first van (4), a first deposition unit (12) adapted to form a base layer (13...
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WO/2000/060178A1 |
A method of forming a trench at sea on the seabed comprising the steps of providing an ROV (remotely operable vehicle) (2) capable of being operated underwater, providing a separate trenching skid (1) removably connectable to the ROV (2)...
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WO/2000/057025A1 |
An apparatus (10) and method for breaking surfaces of concrete comprises a plurality of hammers (22) which strike non-simultaneously. Such motion is created by a cam (12) of substantially nautilus-shaped cross-section, a cam roller (16) ...
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WO/2000/056985A1 |
An apparatus for digging a trench including a cutter means for cutting through a ground surface and a guide with a loading end located rearwardly of the cutting means and adapted for guiding earth from the loading end to an off loading e...
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WO/2000/053855A1 |
A device (1) embodied in the form of a dredging shovel is used to break up and remove the outer layers of the ground. A milling and cutting device (24) is provided on the rear side of said device opposite a receiving opening (7). The mil...
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WO/2000/052268A1 |
A submarine plough comprises a plough share for cutting a trench in the sea floor, an inlet for receiving an elongate flexible member such as a cable, and an outlet provided rearwardly of the plough share for inserting the flexible membe...
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WO/2000/050698A1 |
An excavator/digging unit for installation aboard a vessel (12), whereby the aims are great reach of the digging bucket, great lifting strength of the boom work (10) and very good stability conditions aboard the vessel (12) supporting th...
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WO/2000/049235A1 |
A trench-padding method (302, 304) and apparatus (1) provide a more efficient, cost efficient process of obtaining a maximal amount of padding material from material (16) excavated from a trench (21), and where selected, provide for tren...
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WO/2000/045119A1 |
In the field of clearance of unexploded ordnance from land, there is a need for an improved apparatus for removing unexploded ordnance from the ground. A cutting apparatus (10) includes a plurality of blades (13) on a rotatable shaft, th...
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WO/2000/022245A1 |
System and apparatus for underground channeling of flexible pipes, comprising the cutting of the ground by means of a tool (1) continuously along the run of the pipe and at the corresponding depth where the pipe (4) is going to be burrie...
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WO/2000/017456A1 |
The invention concerns a tubular structure comprising, in cross-section transverse to its axis (O), at least three prefabricated elements, respectively two side wall elements (32, 32') resting on the setting surface and at least one uppe...
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WO/2000/014374A1 |
The invention relates to a method and an installation for vertically introducing a number of vertical, parallel pipes (15, 16) connected to one another into the ground, for example in order to form an underground heat exchanger or to for...
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WO/2000/014838A1 |
A cable burial system (30) includes a cable burial tool (40) having a base frame (54), a blade (56) extending downwardly from the base frame (54) and having a vertically oriented internal slot (58) therein with a slot width, and a feed s...
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WO/2000/006835A1 |
This invention relates to trenching apparatus (1) most commonly used for digging and maintaining drainage channels/trenches alongside roads, along fence lines and on a variety of properties. In one embodiment of the invention the trenchi...
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WO/2000/006841A1 |
A material distribution vessel (300) for distributing material recovered in a dredging operation is disclosed. The material distribution vessel (300) includes a hull (352); a propulsion system (380) for selectively moving the hull (352) ...
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WO/2000/006843A1 |
The invention relates to a method for laying data cables (15) in a liner during the renovation of pipe ducts (1). The data cables (15) are protected by the liner on all sides. According to said method the data cables (15) can be laid at ...
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WO/2000/006840A1 |
A vessel (50) for transporting and off-loading material recovered in a dredging operation is disclosed. The vessel (50) includes a hull (52), a propulsion system (58-70) for selectively moving the hull through a waterway, and a hopper (5...
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WO/2000/006839A1 |
A system for transporting material recovered in a dredging operation performed by a dredge (10) is disclosed. The system includes a water-borne material distribution vessel (300) including a conveyor system (310) for receiving and deposi...
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WO/2000/006836A1 |
A self-propelled pipeline padding machine (20) and a method for padding pipelines (351) in ditches (348) without damaging the pipeline (351) prior to backfilling the ditch (348). A spoils pile (360) comprising dirt, vaious size rocks, an...
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WO/1999/066244A2 |
The invention contemplates a working implement, for use with an excavating type machine, which semi-automatically brings a pipe section to a specified grade, slope, and line for emplacement in a line of pipe sections to be laid on the sp...
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WO/1999/055972A1 |
A steerable plow (10) configured for towing in a direction along a seabed (12) comprises a body (16) and a soil cutting member (18) slidingly connected to the body. The soil cutting member defines a cutting vane (32) for cutting a trench...
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WO/1999/054556A1 |
A submarine trenching vehicle (1) for laying a rigid or large semi-flexible pipe (2) in a trench (3) on the sea floor (4) is disclosed. The vehicle (1) comprises a vehicle body (5) adapted to travel along the sea floor (4) and a trench c...
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WO/1999/054555A1 |
An excavation assembly (12), an apparatus (10) and method of operating the same. At least a portion of the assembly (12) is attachable to a vehicle (14) including a frame (18) and an arm (42) supported on the frame, the arm (42) having o...
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WO/1999/051822A1 |
A rubber tired railway plow (100) has a plow unit (102) mounted to a plate (111) which extends across the forward end of the rubber tired vehicle (100). The plow unit (102) is attached so as to be movable on the plate (111). Wedges (122,...
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WO/1999/050508A1 |
This invention relates to dredgers for removing sand, silt and like material from the river or sea bed and has application, for example to clearing wrecks, and providing trenches in which, for example, pipelines may be laid. There is des...
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WO/1999/047758A1 |
The invention relates to a machine for performing work on land and/or in water, which comprises an underframe (1) which moves on wheels or corresponding mechanism, a platform body (2) on top of the underframe, an extension arm (5) attach...
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WO/1999/041463A1 |
The invention relates to a method for working through ground layers with dredgers or excavators, in which water jets (4) are injected in the area where a mechanical cutting or excavating component (2) is active at a pressure which is suf...
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WO/1999/040263A1 |
The invention relates to a machine for displacing grindstones with a milling cutter (28, 30). The inventive machine is laterally guided along a grindstone, in a displacement direction, and removes a layer of material from the grindstone ...
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WO1999023314B1 |
A steerable plow (20, 20a-20d) configured for underwater towing along a sea bed. The plow includes a plow body (24) and a soil cutting member (26) attached to the body. The soil cutting member is configured for forming a trench in the se...
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WO/1999/035346A1 |
The invention concerns a method for laying elongated structures (13) for transporting a flux, such as telecommunication cables, which consists in providing, along a road (21) in an agglomerate (9) constituting its surface such as surfaci...
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WO/1999/032733A1 |
The invention concerns a method for laying an elongated structure, such as a cable, which consists in: installing a trenching tool (13) on a frame (7) provided with at least a ballast tank (11) for placing the tool towards the bottom (50...
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WO/1999/025932A1 |
A method for extracting and grading or sizing granular material, such as sand, gravel or a mixture thereof, from a volume of untouched ground (23), comprises spraying a liquid into the ground, resulting in a fluidized state (24) in the s...
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WO/1999/013171A1 |
A submarine plough is disclosed comprising a plough share (216) having a cutting edge (207). A heel (220) is arranged rearwardly of the cutting edge (207), and a plough beam (205) has an attachment portion for enabling a towing means (20...
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WO/1999/007949A1 |
An underwater mining vehicle (28) is provided with a suction boom (22) carrying a tooth cutter (9) at its forward tip and having an array of nozzles (20) disposed about its periphery. In use, the boom is oriented vertically and applies a...
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WO/1999/004107A1 |
An economic method and apparatus for ecologically safely removing silt, muck, and sand from a water bottom and for collecting the silt, muck, and sand without destroying the benthos therein into porous containers where the then contained...
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WO/1999/000556A1 |
The present invention relates to a method for padding ground below a duct (1) using excavated soil (2), wherein said method uses a vehicle (6) that comprises a soil feeding organ (13), a transport organ (14) and soil compacting organs (1...
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WO/1999/000555A1 |
The invention relates to a device for digging trenches and refilling them with earth, especially for laying pipes. Said device comprises a self-propelled travelling mechanism (2), said travelling mechanism supporting a machine frame (4) ...
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WO/1998/053148A1 |
A soil improving machine comprising a traveling vehicle which includes a lower traveling body having a pair of right and left caterpillars and an upper traveling body capable of swiveling on the lower traveling body; earth excavation mea...
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WO/1998/051395A1 |
A method and system for cleaning an underwater floor is disclosed. The method includes: submerging a self-propelled underwater vehicle into a body of water, such as a basin, for example; directing the vehicle to traverse the basin floor;...
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WO/1998/050641A2 |
The present invention relates to a machine for digging into the lower layers of the ground, wherein said machine comprises the following members: a base frame (1), a ground excavator (2) and a driving chain-type working organ (3) that is...
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WO/1998/044207A1 |
The invention relates to a method and a device (1) for dumping dredged material and the like on a bottom (11) present under the water surface (3). The dredged materials or the like are delivered under the water surface by means of a conv...
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WO/1998/044238A2 |
An ejector mechanism (19) operates to force silt material from individual chambers in a rotating wheel mechanism (16) of a silt removal machine (10). The rotating wheel mechanism (16) removes the silt material from under a shallow body o...
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WO/1998/044206A1 |
A screening apparatus (6) is removably connected to front arms (7) of an excavator (1) by means of quick release couplings to enable the screening apparatus to be quickly attached and removed as required. Material is fed to the screening...
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WO/1998/044239A2 |
An overload protector mechanism provides protection for an excavating wheel mechanism (16) shield mechanism (18) so that if a large foreign object becomes lodged between the excavating wheel and a portion of the shield arrangement the sh...
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WO/1998/044204A1 |
A silt removing apparatus (10) is provided for removing silt from under a body of water. The silt removing apparatus (10) includes a silt removing wheel (16) rotatably mounted on a flotation arrangement (12). The silt removing wheel (16)...
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WO/1998/042922A1 |
An underwater mining machine (10) includes a chassis (12) mounted on a powered drive arrangement (14) for driving the chassis on an underwater surface, the chassis (12) having a front end and a rear end and being adapted to be maneouvrab...
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WO/1998/040568A2 |
A portable excavator (10) having a tube (12) to point a supersonic gas stream at a buried object. The excavator includes a movable member disposed within the conduit (62, 64) to pulse gas passing through the conduit (62, 64) and a supers...
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WO/1998/037279A1 |
To construct an underground structure having smooth wall surfaces in a simple, safe and reliable way, boards (11, 12) are buried in parallel, and soil and sand (G1) between the boards is removed. If the places where the boards are to be ...
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WO/1998/031880A1 |
The invention concerns a pipe fitting and trench filling method by means of one or several underpours of a thixotropic material comprising the following successive steps: a) digging a trench or length l and depth P and assembling togethe...
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