| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 037307000 | BENEATH A BODY OF WATER (E.G., DREDGER) | 83 |
| 20090300950 | Apparatus, System and Method for Remediation of Contamination - An apparatus, system and method for removing and treating contaminated materials on a bottom of a body of water and introducing growth packets to revitalize the treated bottom of the body of water. The structure may comprise a vessel with an open face. The vessel may be lowered down to the bottom of the body of water with the face facing down. As a result, the vessel and the bottom form an isolated space. The structure may comprise at least one agitating device(s) for stirring up the materials inside the vessel so as to form a mixture containing the sediment materials which in turn contain the contaminants. Multiple at least one pipe(s) may be coupled to the vessel for transporting the mixture out of the vessel for processing (filtering, treating with chemicals, etc.) so as to neutralize or eliminate the contaminants in the mixture. Then, the treated mixture can be returned to the inside of the vessel via the at least one pipe(s). | 12-10-2009 |
| 20100126047 | SEABED ORGANIC MATERIAL RELOCATING - An apparatus to gather and relocate benthic life and life supporting material for use in combination with a seabed or aquatic bed dredger, plough, mole or other seabed disturbing apparatus comprising a means of gathering the benthic life and life supporting material in, on or above the seabed in front of and in the path of the draghead or said seabed disturbing apparatus, thereby preventing entrainment or damage to the benthic life, and a means of releasing the benthic organisms and life supporting material via a directional exit duct, away from the work area. | 05-27-2010 |
| 20110232138 | Apparatus for Collecting Marine Deposits - Provided is an apparatus for collecting marine deposits. The apparatus for collecting marine deposits of the present invention includes: a piston corer for collecting a deep part of marine deposits having an external body stuck in the deep part of a sea bottom while serving as a cylinder body and having a piston body positioned in the external body | 09-29-2011 |
| 20130139415 | Subsea Excavation Systems and Methods - Novel subsea excavation apparatus and methods that exert force between a subsea anchor point and an excavator using a subsea actuator. In some examples the subsea actuator is attached to an anchor point on the seabed and the excavator directly. In other examples, a guide frame is anchored to the seabed to provide anchor points fixed relative to the seabed and the subsea actuators are attached to the guide frame and the excavator. In further examples, the subsea actuators can be attached to the excavator through a carrier frame or other excavator guides rather than directly to the excavator. | 06-06-2013 |
| 20140137442 | SYSTEM AND METHOD FOR SEAFLOOR STOCKPILING - A system and method for stockpiling material on the seafloor, the system and method using seafloor collection machines, such auxiliary or bulk cutters or collection machines, to capture seafloor material to be stockpiled. The captured seafloor material is carried in slurry form over a flexible transfer pipe to an outlet at a desired seafloor site. In a preferred form the outlet is mounted in a seafloor stockpiling hood that sits on the seafloor at the desired seafloor site and captures and contains slurry from the outlet while allowing egress of water. The captured seafloor material can then be extracted to a surface vessel. | 05-22-2014 |
| 20140338232 | STEERABLE UNDERWATER TRENCHING APPARATUS - An underwater trenching apparatus comprises at least one trenching tool; a lifting attachment point configured for attachment of a lifting means for lowering the trenching apparatus to, or raising the trenching apparatus from, its location of operation; at least two steerable endless track units for transmitting tractive effort to move the underwater trenching apparatus in use; and for each steerable endless track unit, a first mounting arrangement permitting rotation of the track unit about a vertical axis, and a first actuator configured to move the track unit about the vertical axis, and control means configured to control the action of the actuator. In alternative forms, in addition to, or alternative to the steerable endless track units, the apparatus includes height adjustment means for adjusting the vertical spacing between the main body portion and the respective endless tracks; and control means configured to control the action of the height adjustment means. | 11-20-2014 |
| 20150082670 | Subsea Excavation Systems and Methods - Novel subsea excavation apparatus and methods that exert force between a subsea anchor point and an excavator using a subsea actuator. In some examples the subsea actuator is attached to an anchor point on the seabed and the excavator directly. In other examples, a guide frame is anchored to the seabed to provide anchor points fixed relative to the seabed and the subsea actuators are attached to the guide frame and the excavator. In further examples, the subsea actuators can be attached to the excavator through a carrier frame or other excavator guides rather than directly to the excavator. | 03-26-2015 |
| 037308000 | With signal, scale, indicator, or inspection means | 7 |
| 20080244936 | Wheel-Type Working Machine and Method of Controlling the Same - A hydraulic excavator includes: an oil-pressure cut valve | 10-09-2008 |
| 20100043256 | Underwater Excavation Apparatus - An underwater excavation apparatus having means for moving the underwater excavation apparatus that are provided on or adjacent to the apparatus. The means for moving the underwater excavation apparatus provide for orienting, positioning, rotating, counteracting reactive torque and/or steering the apparatus. The apparatus has a pair of horizontally opposed or symmetrically disposed inlets communicating with a single outlet that is disposed vertically downwards. | 02-25-2010 |
| 20100299970 | A SYSTEM AND METHOD FOR OPTIMIZING DREDGING - The present invention relates to a system for optimizing the dredging of an area by a vessel ( | 12-02-2010 |
| 20140283420 | Suction Mouth for a Subsea Mining Tool - A suction mouth ( | 09-25-2014 |
| 20140338233 | METHODS, APPARATUS AND SYSTEMS FOR POND REMEDIATION - Apparatus for extended-reach remediation of a pond by removal of pumpable materials such as deposited sediment has a base and a rotatable multi-articulated boom to which a pump is connected at the distal end. The boom has a reach which exceeds the reach of conventional remediation apparatus and may be as long as 50 m or greater for reaching over obstacles between the base and the pond. The base can be stationary or it can be mobile or self-propelled for repositioning the apparatus about the perimeter of the water body or to platforms which are built within the pond and accessible by accessways when the pond is filled with water. The pump is lightweight so as not to affect the overall apparatus stability when the boom is fully extended. Geo-locating apparatus assists with mapping the remediation operation. Further, additional accessories can be connected to the end of the boom, such as fluid jets for controlling the fluid properties of the pumpable materials and a blender for shredding vegetation or other non-pumpable materials to render them pumpable. | 11-20-2014 |
| 20160053461 | MEASUREMENT DEVICE FOR PERFORMING MEASUREMENT ON A MIXTURE OF WATER AND COLLECTED MATERIAL - A measurement device is disclosed for performing measurements on a mixture of water and collected material. The measurement device comprises a pipe section through which the mixture can be guided, the pipe section comprising a window. The measurement device comprises an image capturing device arranged to capture an image of the collected material through the window. The image can be used to determine a grain size distribution of the collected material, which can be used to optimize the collecting process. | 02-25-2016 |
| 20160153169 | RISER FLOW CONTROL | 06-02-2016 |
| 037309000 | With means to control dredger operation (e.g., movement of dredged material) in response to sensed condition | 8 |
| 20140026448 | METHOD OF AUTOMATED VARIABLE SPEED CONTROL OF MOVEMENT OF A CUTTER HEAD OF A DREDGING CUTTER - An automated variable speed control system for a cutter head of a dredging cutter has a cutter head and a pump. The pump pumps cuttings from the cutter head through a cuttings discharge line. A sensor monitors amperage draw of the pump. A controller controls speed of movement of the cutter head based upon data received from the sensor. The controller increases a speed of movement of the cutter head through the materials when the amperage draw of the pump falls below the determined amperage range and the controller decreases the speed of movement of the cutter head through the materials when the amperage draw of the pump exceeds the determined amperage range. | 01-30-2014 |
| 20140026449 | METHOD OF DREDGING A POND - A method of dredging a pond uses a submersible assembly, having a dredging cutter and submersible pump, which is submersed in the pond. The submersible assembly is moved along a bottom of the pond by winches. A controller receives signals from a global positioning system as to the position of the submersible assembly in the pond and moves the submersible assembly in a continuous dredging pattern through the coordinated operation of the winches. | 01-30-2014 |
| 20140283421 | UNDERWATER TRENCHING APPARATUS - An underwater trenching apparatus comprising a soil cutting arrangement having a forwardly disposed cutting portion and a rearwardly disposed non-cutting portion, a soil removal device configured to remove soil from a location forward of the soil cutting arrangement and barrier device located and configured substantially to prevent passage of soil to the non-cutting portion of the soil cutting arrangement. The soil cutting arrangement is typically a rockwheel or chain cutter. The soil removal device is typically a dredge pump or eductor. | 09-25-2014 |
| 20150047233 | ROBOT FOR MINING MANGANESE NODULES ON DEEP SEAFLOOR - Disclosed is a robot for mining a manganese nodule on a deep sea floor. The apparatus includes a plurality of moving apparatuses detachably disposed in parallel with each other; a mining apparatus installed to a front end of the moving apparatuses to mine a manganese nodule; a transferring apparatus installed to an upper portion of the moving apparatuses to crush the manganese nodule in a constant size or less such that the manganese nodule is transferred to an external; a power control measuring unit installed to an upper portion of the moving apparatuses for providing power to the moving apparatuses and controlling operations of the mining apparatus and the transferring apparatus; a structure frame for connecting the moving apparatuses to each other and for supporting the mining apparatus, the transferring apparatus and the power control measuring unit; and a buoyancy unit installed to a top end of the structure frame. | 02-19-2015 |
| 20150300167 | APPARATUS FOR BI-DIRECTIONALLY MINING MANGANESE NODULE - Disclosed is an apparatus for bi-directionally mining a manganese nodule. The apparatus includes a traveling device to travel in a predetermined traveling direction, collecting devices installed at both ends of the traveling device, respectively, to collect the manganese nodule, and a control device to sense the traveling direction of the traveling device and to drive one of the collecting devices installed at both ends of the traveling device, which is placed in the sensed traveling direction. | 10-22-2015 |
| 20150345107 | CUTTING DREDGER - A method for operating a cutting dredger in open water, in particular to control a ground reaction force during dredging operations, the dredger including; | 12-03-2015 |
| 20160002879 | Seafloor Nodule Concentrating System and Method - A seafloor nodule concentrating system is disclosed. The seafloor nodule concentrating system has a surface vessel and an undersea steering vehicle secured to the surface vessel. The undersea steering vehicle is adapted to be towed by the surface vessel. The seafloor nodule concentrating system also has a nodule collecting apparatus connected to the undersea steering vehicle. The nodule collecting apparatus is located on the seafloor. The seafloor nodule concentrating system also has a position determination device adapted to determine the position of the nodule collecting apparatus and communicate position information of the nodule collecting apparatus to the undersea steering vehicle and surface vessel. | 01-07-2016 |
| 037312000 | Control of swing or swing speed | 1 |
| 20100299971 | METHOD AND SYSTEM FOR OPTIMIZING DREDGING - The present invention relates to a method for optimizing the dredging of an area by a dredge equipped with a cutter suction head ( | 12-02-2010 |
| 037313000 | By use of submarine or undersea vessel | 3 |
| 20110010967 | Deep Undersea Mining System and Mineral Transport System - Systems and methods for recovering manganese nodules from the seabed are disclosed. A buoyant body is generated by freezing water, forming a clathrate ice, or using a liquid that is less dense than seawater. Nodules that have been collected from the seabed are incorporated into or otherwise coupled to the buoyant body. The buoyant body is then released to make a free or tethered ascent to the surface. | 01-20-2011 |
| 20130298430 | Method And Apparatus For Bulk Seafloor Mining - A seafloor bulk mining tool for production cutting of a seafloor bench. The tool uses a tracked locomotion system to travel across a seafloor bench. Power and control interfaces receive power and control signals from a surface source. The tool has a drum cutter for cutting the bench, and a sizing grill adjacent the drum cutter for sizing cuttings as they are produced by the drum cutter. A drum shroud may also be provided to help contain cuttings. A suction inlet can be used to capture cuttings as they are produced, for example in conjunction with a spade and augers. | 11-14-2013 |
| 20140041262 | DEVICE FOR EXTRACTING SOLID MATERIAL ON THE BED OF A BODY OF WATER, AND ASSOCIATED METHOD - The device of the disclosure comprises an assembly ( | 02-13-2014 |
| 037314000 | Adapted to excavate specific discrete material | 9 |
| 20090077835 | DEEP SEA MINING RISER AND LIFT SYSTEM - Applicants have created a method and system of deep sea mining comprising mining SMS deposits from the sea floor with a subsea miner, pumping the solids from the subsea miner through a jumper and pumping the solids from the jumper up a riser to a surface vessel. Further, applicants have created a method of deploying a deep sea mining system, comprising stacking a riser hangoff structure on top of a subsea pump module forming an assembly; picking up the assembly by a hanging mechanism, hanging the assembly on a moon pool, attaching a first riser joint; disconnecting the riser hangoff structure from the assembly; and attaching at least one second riser joint to form the riser. | 03-26-2009 |
| 20130055600 | FISHING DREDGE WITH A MOUNT FOR AN UNDERWATER CAMERA AND/OR VIDEO CAMERA - A fishing dredge provides a mount for an underwater camera and a shuttle for relieving the pressure on the camera. Conventional fishing dredges include no dedicated means to attach an underwater camera. The fishing dredge herein described adds a hydrodynamic shuttle and a build in mount for an underwater camera, such as a Gopro®, to mount in the center of the fishing dredge. A keel weight can be added to the bottom of the shuttle to keep it from spinning during use. | 03-07-2013 |
| 20140137443 | APPARATUS AND METHOD FOR SEAFLOOR STOCKPILING - An apparatus for seafloor stockpiling that has a slurry inlet that receives slurry from a seafloor tool via a slurry transfer pipe and walls that, together with the seafloor, define a cavity having a stockpiling volume. The walls are made substantially of a water permeable material, such as a filter fabric or geotextile, that captures and contains seafloor material present in slurry received from the slurry inlet, while permitting egress of water from the slurry. In a preferred form the seafloor stockpiling device is a hood with an open bottom that is located on a seafloor surface. | 05-22-2014 |
| 037315000 | Shellfish | 6 |
| 20100293820 | Method for Configuring a Shellfish Dredge - A method for configuring a shellfish dredge is described. In an embodiment of the invention, a bag on a shellfish dredge has a front side and a back side and is attached to a tow. The front side of the bag has a pair of end peaks, one or more central peaks and an open area for catching shellfish. The end peaks are attached to the tow and the central peaks are attached to vertical chains connected to the tow. The bag is of a depth to catch and contain shellfish. | 11-25-2010 |
| 20110296719 | Method and Entity for Conveying Data Units - A method of conveying data unit traffic from a radio terminal in a mobile communication system that comprises an access network (E-UTRAN) and a core network (Evolved Packet Core) is described. It comprises:—receiving (S31) a service request message for data unit communication from said radio terminal, and—performing (S32) a conveying decision procedure, and on the basis of an outcome of said conveying decision procedure, associating a radio channel between an access network entity and a radio terminal with one of a channel to a dedicated data unit processing entity (P-GW) in said core network for conveying data units from said radio terminal to said dedicated data unit processing entity for processing (S33), and—an access network channel for conveying data units from said radio terminal within said access network (S34). | 12-08-2011 |
| 037316000 | Including rake or scoop structure | 4 |
| 20080295365 | Assembly for harvesting shellfish such as scallops and alike - The assembly comprises a frame-truss subassembly, to which are attached an internal subassembly for directing a flow of encountered water during dragging and a subassembly for collecting and discharging shellfish. An external subassembly is used for encasing the frame-truss subassembly together with the internal subassembly and the subassembly for collecting and discharging shellfish. The frame-truss subassembly includes a pair of lateral trusses, spaced at a distance commensurable with a width of the assembly. The internal subassembly includes an anterior panel with a forwards oriented concavity and a posterior panel with a backwards oriented concavity. The subassembly for collecting and discharging, disposed behind the internal subassembly includes a louver platform, a grid receptacle supported by the platform and a mechanism for topple over the grid receptacle. At least two sets of a multiplicity of hinged flaps are used. | 12-04-2008 |
| 20090139117 | Method for Configuring a Shellfish Dredge - A method for configuring a shellfish dredge is described. In an embodiment of the invention, a bag on a shellfish dredge has a front side and a back side and is attached to a tow. The front side of the bag has a pair of end peaks, one or more central peaks and an open area for catching shellfish. The end peaks are attached to the tow and the central peaks are attached to vertical chains connected to the tow. The bag is of a depth to catch and contain shellfish. | 06-04-2009 |
| 20110146113 | FISHING DREDGE - A fishing dredge and in particular to a belly ( | 06-23-2011 |
| 20110185603 | DREDGE FRAME - A frame for a fishing dredge which has a sea bed engaging portion and an upper portion. Teeth are resiliently mounted on the frame to extend beyond the seabed engaging portion of the frame such that at least two of the teeth are resiliently mounted to move independently of one another. This feature allows the frame to move over obstacles encountered on the sea bed. The frame is also provided with funnelling means adapted to direct water into and through the frame in order to clear debris from the frame. | 08-04-2011 |
| 037317000 | Suction | 37 |
| 20090100724 | Underwater Sediment Evacuation System - This invention is directed to an underwater sediment evacuation system. The invention uses a suction pile and one or more pumps, valves, and lines to evacuate sediment contained within the internal volume of the suction pile. | 04-23-2009 |
| 20090126237 | Apparatus With Flexibly Mounted Spud Carriage - In one embodiment of the present invention, an apparatus is disclosed for accommodating a substantially vertical spud of a dredging vessel with a longitudinal direction, including a spud carriage which is mounted for limited rotation around a horizontal transverse axis, wherein at least a first and a second spring device is arranged under bias between vessel and spud in the longitudinal direction for the purpose of absorbing a moment on the spud carriage, which first and second spring devices compensate each other in the non-loaded situation of the spud; and at least one spring device is provided with a spring force limiting device for limiting the tension in the spring element from a determined maximum moment on the spud carriage. | 05-21-2009 |
| 20120085003 | IN AND RELATING TO DREDGING APPARATUS - In a dredging apparatus, a suction head relocates matter by sucking particulate matter from a bed of a body of water. The suction head includes a first conduit (C | 04-12-2012 |
| 20120198733 | A DREDGE VESSEL SYSTEM - A system for recovering immerged sediments from a seabed and discharging them. From a free sailing extraction ship a mixture of water and sediment is suctioned by a submerged pump unit through a flexible hose adapted to be rolled on a rotative reel positioned on the extraction ship, while the ship is sailing over the concession. The suctioned mixture is then immediately delivered to one of a series of free sailing carrier and transport units that sail alongside. | 08-09-2012 |
| 20130312296 | System For Seafloor Mining - A system for seafloor mining. A seafloor auxiliary mining tool works a seafloor site to prepare a bench, and deposits cut ore in a gathering area. A seafloor bulk mining tool undertakes production cutting of a bench and deposits cut ore in a gathering area. A seafloor gathering machine gathers cut ore deposited in the gathering area and pumps gathered ore as a slurry to a riser base. A riser and lifting system receives slurry from the gathering machine and lifts the slurry to the surface. A surface vessel receives slurry from the riser and lifting system. | 11-28-2013 |
| 20150007463 | METHOD AND APPARATUS FOR UNDERWATER PILE EXCAVATING - An encapsulated underwater excavation assembly for removing solid materials (such as mud, soil, vegetation or debris) from a water bottom including, without limitation, during pile driving or installation operations. The excavation assembly can be contained within a housing that beneficially fits within an inner bore of a piling or other tubular member. A rotary motor having a cutting blade mechanically cuts solid materials while a centrifugal pump moves cuttings away from the lower portion of the excavation assembly for facilitate efficient installation of a piling. | 01-08-2015 |
| 20190145081 | Dredging System and Dredger for Pre-Paved Gravel Foundation Bed Surface in Open Sea Deepwater | 05-16-2019 |
| 037318000 | Having intake screen | 3 |
| 20100299972 | DRAG HEAD OF A TRAILING SUCTION HOPPER DREDGER AND METHOD FOR DREDGING USING THIS DRAG HEAD - A drag head of a trailing suction hopper dredger. The drag head comprises a rotatable visor connected to a suction pipe for discharging soil via the suction opening of the visor, wherein the visor is provided with a catching construction for undesirable objects. The catching construction closes the suction opening except for passage openings, wherein at least a number of passage openings have a variable passage area. A method for breaking up and/or dredging at least partially hard grounds under water using a trailing suction hopper dredger equipped with a drag head. | 12-02-2010 |
| 20110056098 | UNDERWATER EXCAVATION APPARATUS - There is disclosed an underwater excavation apparatus ( | 03-10-2011 |
| 20150143726 | WATER BODY CLEANER WITH SELECTIVE SEDIMENT DREDGING HEAD - A method and apparatus for selectively removing fine sediments from a water body bottom using a dredging head with one or more intake openings situated to accelerate flows through the interior of the head and across the water body bottom causing fine particles to become suspended in a slurry outflowing from the head for disposal, while coarser, heavier, bottom gravels remain in place. The stream cleaner dredging head includes a main body having at least one intake, at least one plate attachment feature, a discharge point, and an at least partly open bottom; a flow-adjusting plate that is adjustably connected to the at least one plate attachment feature and configured to adjust a fluid flow through the main body from the at least one intake, and a hose attachment connected to the discharge point of the main body. | 05-28-2015 |
| 037320000 | With pumping chamber | 3 |
| 20090241383 | Suction Tube Device Provided with Drive Systems and Method of Repairing Same - A suction tube device having a frame, a tube, a centrifugal pump which cooperates with the tube, and a cutter head at one end of the tube. The tube, centrifugal pump, and cutter head are supported by the frame. The centrifugal pump and the cutter head are each provided with a drive system, the drive systems of the centrifugal pump and of the cutter head each having at least one motor. A motor of the drive system of the cutter head and a motor of the drive system of the centrifugal pump are interchangeable with respect to each other. | 10-01-2009 |
| 20100011627 | DREDGING APPARATUS - In embodiments of the invention, a dredging head assembly uses vacuum only, or a combination of vacuum and flexible PVC tines, rather than the harsh digging and/or scraping features of conventional dredging equipment. Embodiments of the invention also provide a dredging head assembly that may be used in very shallow water. An embodiment of the invention includes a hose and wand to enable vacuuming around obstacles. One variant of the dredging head assembly is adapted for skimming floating debris from the surface of a body of water. | 01-21-2010 |
| 20100175283 | SUBMERGIBLE DENSIFICATION CELL, SEDIMENT SEPARATOR AND SEDIMENT DENSIFICATION METHOD - The present invention relates to a sediment/water separator used to dredge sediment from the bottom of lakes, rivers, harbors, lagoons, tanks, dykes, reservoirs and seashore. The invention, also named submergible densification cell, dredges sediment of various types at various depths. Said sediment can vary as far as their consistency, contamination, stratigraphy, density, origin, concentration, granulometry and other aspects of its formation are concerned. The invention also relates to a sediment densification method which utilizes the submergible densification cell, resulting in an increase of 1.5 to 3 times (by weight) in the concentration of the dredged sediment, reducing the removed volume, the area necessary for deposition, and, as a result, accelerating the open-air drying process of the dredged sediment. | 07-15-2010 |
| 037321000 | With means to introduce lift agent directly into suction pipe | 3 |
| 20130340298 | Dredging Head Apparatus - In embodiments of the invention, a wheeled dredging head is configured to operate in a stand-alone condition, with the addition of a water jet assembly, and/or with the addition of an adapter at an intake of the dredging head. In one embodiment, the adapter is configured to vacuum the floor of a body of water. In another embodiment, the adapter is configured to remove sediment or other material from a sloped surface in a body of water. In yet another embodiment, the adapter is configured to remove sediment or other material from around obstacles in a body of water. | 12-26-2013 |
| 20140310997 | CAVITATING WATER JET HARD ROCK DREDGE MINING SYSTEM - The present invention provides a system and method to efficiently and effectively dredge in the presence of hard rock. An additional aspect of the present invention is to provide a system that induces cavitation bubbles and/or a vortex flow within a dredging cutter head by use of water jets mounted within a cavity of the cutter head. The cavitation bubbles and/or vortex flow produced by the water jets urge comminution of hard rock encountered during dredging operations, providing a more effective and efficient dredging of waterways than conventional approaches. | 10-23-2014 |
| 20160186409 | SUCTION HEAD FOR A DREDGER - A suction head ( | 06-30-2016 |
| 037323000 | With fluid jet digger adjacent suction inlet | 5 |
| 20090056173 | CUTTER HEAD FOR DREDGING SOIL AND METHOD FOR DREDGING BY MEANS OF THIS CUTTER HEAD - A cutter head for dredging soil, which is mountable to the ladder of a suction dredger for dredging soil, and connectable on a suction pipe for removing loosened soil, the cutter head comprising a cage-shaped support construction which is mountable to a drivable rotation shaft extending mainly in extension of the ladder and which has a circumferential surface provided with a number of cutting tools for penetrating the soil, the cutting tools comprising a number of disc-shaped penetration bodies of which the disc planes extend substantially perpendicular to the rotation shaft, so that they can transfer forces to the soil via their peripheral edges. | 03-05-2009 |
| 20110296720 | Drag Head for a Trailing Suction Hopper Dredger and Method for Dredging Using This Drag Head - The invention relates to a drag head ( | 12-08-2011 |
| 20120216435 | MUD/SLUDGE REMOVING DEVICE - A mud removing device includes a case which is merged into water and has an opening and a space. At least one at suction tube and multiple injection tubes respectively extend and connect to the case. The injection tubes are located around the opening of the case and one end of the injection tubes reaches to the periphery of the opening. A working station introduces high pressure water to flush the mud located below the opening of the case and at least one the suction tube sucks the mud which is collected to the working station. The case has weights and the working station can be carried by a floating carrier. The working station has a crane which has a cable to hang the case. | 08-30-2012 |
| 20140215865 | Vibrating agitator attachment for Toyo dredge pumps - This invention is titled “Vibrating Agitator Attachment for Toyo Dredge Pumps” and is for use with Toyo submersible dredge pumps. The invention is for use in subsea dredging operations. The invention is easily attachable when needed and detachable when not needed. It uses vibrating technology to move an agitator unit, which touches the seafloor, in the X, Y and Z planes in a rapid and powerful motion. The agitator unit has “blades” with vertical surfaces and pointed at the bottom for easy penetration in hard clay. These “blades” are attached to the bottom of a jet ring that uses pressurized water spraying through jet nozzles aimed at the pointed edge of the vertical surface blades. The vibrating motion moves the horizontal column of water between the vertical blade surfaces agitating the seafloor material, and breaking it loose for removal by the Toyo dredge pump. The idea of using vibrating technology with a Toyo dredge pump is new. The idea of using vertical vibrating surfaces with pointed bottom ends and water spraying at the bottom of them to break up a hard clay seabed is new. | 08-07-2014 |
| 20170233981 | TRASH REMOVAL SYSTEM AND METHOD FOR REMOVING TRASH FROM WATER BOTTOM, AND WATER VESSEL INCLUDING THE SAME | 08-17-2017 |
| 037324000 | Including driven digger adjacent suction inlet (e.g., cutterhead dredger) | 7 |
| 20090113769 | Device and Method for Changing a Suction Mouth - A device is disclosed for changing a suction mouth of a cutter suction dredge of a vessel with cutter ladder. In at least one embodiment, the device includes, comprising a work platform which, as seen in the transverse direction of the vessel, is provided substantially in the middle with an opening, wherein—a support structure is provided which can be fixedly connected to the work platform in a position substantially under the opening, which support structure is adapted to support a suction mouth; —and the work platform with support structure is tiltable around a first, substantially horizontal transverse axis between a substantially horizontal operating position and a high position in which the cutter ladder can be moved upward, which positions are such that the work platform with support structure is movable from its high position to its operating position when the cutter ladder is situated in a high raised position. | 05-07-2009 |
| 20100083542 | Remotely operated submerged dredging system - A remotely operated underwater dredging system that can excavate many hundreds of feet below the surface of a water body. By placing dredge pump at the bottom of the water body, the vacuum to lift water and dredged material to the pump is minimized. In addition, the mechanical advantage of the cutterhead can be greatly enhanced by mounting it directly to a submerged dredging chassis close to the pump. | 04-08-2010 |
| 20140345170 | Method and Apparatus for Underwater Dredging - An encapsulated underwater dredge assembly is operable at depths up to 1,200 feet or more. The underwater dredge assembly has multiple cutting assemblies, beneficially disposed around a centrally positioned dredge pump; each of the cutting assemblies can rotate in clockwise or counterclockwise directions, as desired. All components of the dredge assembly are hydraulically powered and operated. | 11-27-2014 |
| 20160076218 | APPARATUS FOR COLLECTING SURFACE SEABED SEDIMENT AND APPARATUS FOR COLLECTING SEABED SEDIMENT USING THE SAME - An apparatus for collecting surface seabed sediment. A cylindrical cover part is connected to a trigger, has an open bottom end, and has a position maintaining part disposed therein. A holder part is coupled with the position maintaining part, and has a longitudinal hollow space defined therein. A pipe-shaped sediment collecting part is detachably coupled at one end with a bottom end of the cover part, and has a receiving space defined therein, such that seabed sediment is accommodated within the receiving space. A head part is disposed at one end thereof on the other end of the sediment collecting part, has a hollow space defined therein, and has an insert blade on a periphery. A catcher part is disposed on an inner circumference of the head part, and allows seabed sediment to enter the receiving space of the sediment collecting part while preventing the collected sediment from being lost. | 03-17-2016 |
| 037326000 | Rotary | 3 |
| 037327000 | Specific cutterhead structure | 3 |
| 20090133295 | Cutter Head and Suction Dredger - A cutter head for a cutter suction dredger to be mounted rotatably about a cutter head center axis with respect to a suction device for sucking up material cut loose by the cutter head from the bottom of a body of water, which cutter head includes a base ring, a boss spaced from the base ring in the direction of the center axis, and a plurality of arms which extend from the base ring to the boss and are distributed at regular intervals in the peripheral direction, each arm has a series of teeth located on the radially outermost parts of the arm and directed outwards at an angle with respect to the peripheral direction, the direction of rotation of the cutter head being set such that the teeth perform a cutting movement, with non-return mechanisms, preventing movement of cut material from the center axis to the exterior. | 05-28-2009 |
| 20160145829 | DREDGING CUTTING WHEEL - Cutting wheel system ( | 05-26-2016 |
| 037328000 | Including distinct tooth or tooth mounting | 1 |
| 20120272552 | CUTTER HEAD FOR DREDGING GROUND, CUTTER SUCTION DREDGER PROVIDED WITH SUCH A CUTTER HEAD AND USE OF THE CUTTER HEAD FOR DREDGING GROUND - A cutter head according to the invention is particularly suitable for breaking relatively hard ground, is self-sharpening and has an extended service life. | 11-01-2012 |
| 037333000 | Draghead dredger (e.g., dustpan dredger) | 6 |
| 20110239493 | DRAG HEAD FOR A TRAILING SUCTION HOPPER DREDGER AND METHOD FOR DREDGING USING THIS DRAG HEAD - The invention relates to a drag head of a trailing suction hopper dredger. The drag head comprises a visor which is dragged over the bottom and herein loosens soil, and a suction pipe which is connected to the visor and which discharges the loosened soil. The visor comprises at least two individually movable pressure elements transversely of the dragging direction which comprise a number of substantially disc-shaped penetrating bodies. The penetrating bodies transmit forces to the bottom via their peripheral edge under the influence of the weight of the pressure element in which they are received, whereby the bottom is broken. The drag head has an improved efficiency. | 10-06-2011 |
| 20120000098 | Excavating Device for Excavating Ground Under Water, and Method for Excavating Ground - The invention relates to an excavating device, comprising a floating device which can be moved in a navigating direction and to which a drag head ( | 01-05-2012 |
| 20140190044 | DRAG HEAD AND TRAILING SUCTION HOPPER DREDGER - A drag head ( | 07-10-2014 |
| 20140250742 | DRAGHEAD SYSTEM FOR USE IN DREDGING OR THE LIKE - A draghead visor is configured to attach to an armature along a rotation axis. A biasing assembly attached to the draghead visor is configured for attachment to the armature such that the biasing assembly is positioned to apply a force on the visor in a manner such that a rotational force is applied to the visor around the rotation axis. The biasing assembly may include one or more spring subassemblies, wherein a spring subassembly may include one or more compression spring, extension spring, or torsion spring. The draghead visor may be part of a draghead pulled by a marine vessel. | 09-11-2014 |
| 20150330055 | DREDGING ARRANGEMENT COMPRISING A BIASING DEVICE - The invention relates to a dredging arrangement for dredging material from an underwater bottom ( | 11-19-2015 |
| 20160194851 | DREDGING ARRANGEMENT FOR DREDGING MATERIAL FROM AN UNDERWATER BOTTOM | 07-07-2016 |
| 037335000 | Pipe or nozzle structure | 3 |
| 20140165430 | DEVICE FOR REMOVING SEA BED - A device for removing sea bed includes a conveying line at least partially surrounded by sea water and an emergency emptying device arranged in the conveying line. The conveying line is configured to have a sea bed be removed therethrough so that a removed sea bed is transportable to a surface in a conveying direction. The emergency emptying device is configured so that the removed sea bed moving in a direction counter to the conveying direction in the conveying line is dischargeable from the conveying line into the sea water. | 06-19-2014 |
| 20150052785 | Adjustable Slurry Spreader Plate Assembly - A spreader plate assembly for a pumped source of sand, water and rocks. Includes a generally horizontal plate spaced upstanding threaded rods affixed integrally with the plate, a splash guard affixed to the plate and located adjacent to a predetermined edge portion. An angled pipe receiving end attached to a pipe line containing slurry under pressure and an exiting end dispose above the plate located forward of the guard. Spaced arms extend horizontally from the exit end of the pipe and having collars slide on respective rods. Nuts are threaded below and above each collar, for adjusting distance between the exit end and plate to adjust the slurry output. Nuts adjust the collars to be equidistant from the plate, or the nuts on the forward rod can be adjusted to increase the distance of its collar from the plate to control the angle and control the direction of slurry. | 02-26-2015 |
| 20160168992 | TAILING DEPOSIT TOOL | 06-16-2016 |
| 037337000 | Rotary digger (e.g., bucket wheel) | 1 |
| 20120285051 | Environmental Remediation System - An apparatus, system and method for remediation of contamination in aquatic environments. The apparatus comprises: a vessel including an opening, and an uptake line or pump coupled to the vessel and configured to transport the contained and suspended materials from an interior of the vessel to an exterior of the vessel. The opening is facing a bottom of a body of water, and the vessel is in direct physical contact with the bottom of the body of water. The vessel has been configured to contain and suspend materials inside the vessel. The uptake line or pump housing includes an attachment selected from the group consisting of an impeller, e.g. an air and/or water cannon, a pump, and a sliding collar. | 11-15-2012 |
| 037338000 | Endless | 1 |
| 20090126238 | Top Loading Wedge with Adjustably Engageable Bottom Apparatus and Method - A non-hydraulic dredge comprised of a vaned conveyor/traction/drive assembly. A bi-directional embodiment is disclosed. An elevation adjustment and obstruction override embodiment as disclosed. | 05-21-2009 |
| 037342000 | With means to scour or scrape (e.g., propeller means, digging teeth, plow) | 9 |
| 20100139130 | Underwater Excavation Tool - An underwater excavating tool can generate a downward directed jet of water from a propeller in a main thruster body connected to a surface vessel by an umbilical. The umbilical can include an outer armored sheath that supports an underwater weight of the excavating apparatus, a data cable carrying signals from a controller unit on a surface vessel, and a power cable that supplies electrical power to operate the propeller and other functions of the excavating apparatus. One or more of the orientation, position, and rotation of the main thruster body can be controlled remotely by adjusting two or more positional thrusters mounted radially on the main thruster body. Remote control can be provided using the signals carried via the data cable. Related systems, apparatus, methods, and/or articles are also described. | 06-10-2010 |
| 20140150303 | Seabed Plow Capable of Over-the-Stern Release and Retrieval in Any Boulder Clearing, Trenching and Backfill Configurations - A seabed plow capable of over-the-stern release and retrieval is usable in any of boulder clearing, trench cutting and backfill modes. In its boulder clearing mode, the plow uses its skid in torquing configuration followed by moldboards to push boulders out of the path to be trenched. In the trench cutting mode, the plow uses the skid in the same configuration with its share and moldboards for initial trench depth and the same share and moldboards with moldboard extensions for increasing trench depth in subsequent passes. In the backfill mode, the plow uses its skid in trench-straddling configuration following a blade with a passage designed to discharge fragmented spoil directly onto the pipe being covered. Thus, a single plow can be reconfigured for all modes for release and retrieval to and from a relatively small vessel without use of heavy lifting equipment. | 06-05-2014 |
| 20160376766 | Over-the-Stern Deep Digging Trenching Plow with Instrumentation for Assessing the Protective Capabilities of a Seabed Trench - A seabed trenching plow has a chassis, a sled and a towing assembly. The towing assembly has a pair of wings extending laterally from each side of the chassis. The wings are aligned on an axis transverse to the chassis and adapted for connection to a towing line. The transverse axis is forward of the center of gravity of the plow and rearward of the sled, affording an over the stern releasable and retrievable trenching plow of sufficient weight and strength to excavate a three meter trench in a single pass. To assess the protective capabilities of the trench, a threshold signal indicative of a desired composition of seabed-trench soil is compared with a real-time data signal indicative of the actual to produce an alarm signal when the real-time data signal is not protective-capability compliant with the threshold signal. | 12-29-2016 |
| 037343000 | Rotary digging element | 3 |
| 20110271561 | Cutter Head for Dredging Ground and Method for Dredging Using this Cutter Head - A cutter head for dredging ground under water is disclosed. The cutter head is suitable for attachment to the ladder of a cutter suction dredger and for being moved through the ground therewith in a lateral sweeping movement. The cutter head includes a rotation-symmetrical revolving body which is rotatable around its rotation axis by means of drive means and which is provided along its peripheral surface with a number of cutting tools for penetrating into the ground, wherein the rotation axis of the cutter head runs substantially perpendicularly of the longitudinal direction of the ladder and substantially tangentially to the direction of the sweeping movement. Likewise, a method for breaking ground underwater, making use of the cutter head is shown. | 11-10-2011 |
| 20160039021 | APPARATUS AND METHOD FOR CUTTING TUBULAR PARTS SUBSEA - An apparatus for cutting a tubular part includes a carrying body configured to receive an end of the tubular part. In addition, the apparatus includes a cutting assembly disposed in the carrying body. The cutting assembly includes a continuous ring configured to be rotated relative to the carrying body. Further, the apparatus includes a first cutting element pivotally attached to the continuation ring. The first cutting element includes a cutting edge configured to engage and cut the tubular part. Still further, the apparatus includes a first actuator coupled to the first cutting element and configured to pivot the first cutting element between a retracted position and a cutting position. The apparatus also includes at least one sensor configured to measure a position of the first cutting element and a force applied to the first cutting element. | 02-11-2016 |
| 20160376765 | CUTTER HEAD - A method of forming a cutter head with an axis of rotation comprises forming a hub; forming at least one ring with integral cutter body arm segments extending from the at least one ring; and connecting the hub to the cutter body arm segments so that the hub and the at least one ring are connected and around the axis of rotation. | 12-29-2016 |
| 037344000 | Nozzle | 3 |
| 20110099859 | UNDERWATER EXCAVATION APPARATUS - There is disclosed an underwater excavation apparatus ( | 05-05-2011 |
| 20110283569 | FLUID JETS - A fluid jet apparatus includes a body having a fluid flow path defined between a fluid inlet and a fluid outlet. A thrust device is mounted within the fluid flow path to direct in use a flow of fluid along the fluid flow path. At least a portion of the fluid flow path includes a duct. The thrust device includes a propeller mounted within the duct. The apparatus further includes a plate spaced from the fluid inlet defining a space therebetween. A plurality of elongate pivotable vanes is positioned in a generally circular orientation in the space and about the axis of the flow path and with their pivoting axes aligned with the axis of the flow path. The thrust device is adapted to rotate in a direction opposite the direction of flow of fluid through the vanes into the space. | 11-24-2011 |
| 20140360058 | Pump Apparatus and Underwater Trenching Apparatus - A pump apparatus comprises a primary pump having a relatively low pressure fluid input and a relatively high pressure fluid output and means, associated with said primary pump fluid input, operable where the ambient pressure is insufficient substantially to prevent cavitation in the primary pump, to locally increase the pressure at said primary pump fluid input | 12-11-2014 |
| 037345000 | With vessel, propulsion, or anchor structure (e.g., bank spud, spud brace) | 1 |
| 20150345292 | Disconnectable Method and System For Seafloor Mining - A system for seafloor mining comprising a vertical riser anchored to the seafloor; a mining machine to deliver seafloor ore to the vertical riser; a lifting system to pass the ore through the vertical riser; and a transport vessel removably connected to the vertical riser to receive ore from the vertical riser. | 12-03-2015 |
