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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7395618 | Subsea excavation and suction device Subsea excavation and suction device includes a suction head with an inlet opening at an outer, free end and an outlet opening connected to a suction hose arranged at a distance from the inlet opening. The suction head is mounted on a hydraulic controller arm and at... | 07/08/2008 |
| 7264713 | 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 ma... | 09/04/2007 |
| 7188440 | Device and method for bringing ashore or refloating a floating body An earthmoving device is suspended from a floating body provided with a hull. To that end, suspension elements for suspending the earthmoving device in a movable manner along the outside of the hull are provided, for the purpose of carrying out operations on the wat... | 03/13/2007 |
| 7089693 | Dredging method and apparatus An improved hydraulic dredging apparatus for removing a sediment layer from an underlying substrate lying below a water surface includes a receptacle having an open-front portion through which is sediment is collected, means for attaching the dredging apparatus to t... | 08/15/2006 |
| 7047676 | Rotational and positionable arm-controlled underwater bottom artifact and sample suction recovery apparatus and interchangeable bottom coring apparatus A novel rotational and positionable robotic arm-controlled underwater bottom artifact and sample suction recovery apparatus and interchangeable bottom coring apparatus, wherein the interchange is effected underwater by rotation of a common deploying arm and remote-c... | 05/23/2006 |
| 6966132 | Method and device for moving subsea rocks and sediments A method for moving subsea rocks and sediments which can be at significant depths, in connection with removal of protective rocks around installations where maintenance is to be conducted. Tubing with an ejector nozzle is arranged completely externally in relation t... | 11/22/2005 |
| 6868625 | Method and device for subsea dredging Method and device for moving subsea rocks and sediments, particularly at significant depths, for example in connection with removal of protective rocks around subsea installations where maintenance is to be conducted. The device includes a rigid or at least partly f... | 03/22/2005 |
| 6584709 | Device for removing sludge from the bottom of a lagoon A system removes a pre-specified amount of material from a body of water to facilitate continued operation thereof. A particular embodiment envisions a sled-like device that, assisted with floats, suitable connectors and a hand winch may be positioned any... | 07/01/2003 |
| 6178670 | Underwater mining apparatus There is provided an improved apparatus for recovery of sea-bed material. Known apparatus suffer from problems such as low recovery rate and capital cost. The invention, therefore, provides a recovery apparatus comprising a vehicle upon which are mounted ... | 01/30/2001 |
| 6061932 | Steerable underwater plow with movable body member A steerable plow configured for towing in a direction along a seabed comprises a body and a soil cutting member slidingly connected to the body. The soil cutting member defines a cutting vane for cutting a trench in the seabed. The body includes two skids... | 05/16/2000 |
| 5203099 | Self-powered, submersible dredge apparatus A self-powered, self-contained mobile dredge for removing silt and other bottom sediment from the bottom surface of a body of water, such as a canal, which accumulates as a result of erosion caused by rain and irrigation. A submersible drive unit of the d... | 04/20/1993 |
| 5199193 | Working machine A working machine for use in a working system in which a pair of working machines, which are capable of traveling both on land and on a riverbed or the like, are respectively used for excavating gravel or the like on the bottom of the water and for transp... | 04/06/1993 |
| 4957622 | Apparatus for removing sediment from ponds An apparatus and method for removing sediment which has settled on the bottom of a pond comprising a frame and a hydrostatic chamber. The hydrostatic chamber includes an aperture to receive the sediment and water proximate the bottom of the pond. A gate c... | 09/18/1990 |
| 4903419 | Method of and apparatus for dredging sludge in high density A method of and apparatus for continuously dredging sludge deposited on an underwater bed, at a high density of the sludge, according to which digging and scooping devices are placed in an airtight hood opened at its bottom, which is applied on the intend... | 02/27/1990 |
| 4887371 | Dredges A submersible dregde assembly which includes a mobile carriage which locates on and may be driven about the submerged surface of the sea, river or bay under control from the surface and which carries a rotatable bucket wheel for engaging the surface and d... | 12/19/1989 |
| 4750279 | Mobile apparatus for carrying out work both above and below water Mobile dredging apparatus movable on caterpillar tracks (2) or the like and provided with an energy unit (8,10), energy consuming motors (11) for moving and dredging and extendable line connections (9) between unit (8,10) and motors (11). The unit is remo... | 06/14/1988 |
| 4713896 | Inshore submersible amphibious machines A submersible unit comprises a portable, open or closed bottomed pneumatic chamber mounted on flexible drive tracks controlled by personnel from the chamber for operation along the bottom of a body of water, on the surface, at intermediate levels, in the ... | 12/22/1987 |
| 4642919 | Submersible sludge removing apparatus Apparatus for removing sludge from a settling basin, comprising a pair of longitudinally extending pontoons, spaced apart, and having mounted therebetween, a submersible pump for pumping the sludge. The pump is pivotally mounted between the pontoons and a... | 02/17/1987 |
| 4619762 | Devices for recovering polymetal compounds discharged from a submarine hydrothermal source Devices for recovering polymetal compounds discharged from a submarine hydrothermal source comprise a bell-shaped collector member provided with a flexible skirt and placed just above the hydrothermal source to cover it substantially tightly. The device i... | 10/28/1986 |
| 4510705 | Water-bottom rubbles leveling apparatus A water-bottom rubbles leveling apparatus which includes a main body frame having a plurality of telescopic legs, a first movable frame mounted on the main body frame for movement in the longitudinal direction thereof, and a second movable frame having a ... | 04/16/1985 |
| 4503629 | System for collecting and conveying undersea mineral resources A system for collecting mineral resources on the ocean floor, having an automotive collector for collecting mineral resources, a collection vessel which is connected to the automotive collector so that the collected mineral resources are fed to the collec... | 03/12/1985 |
| 4480569 | Container for ground material removed by a ground working device from the bottom of a watercourse The invention relates to a container for the ground material removed by a ground working device, for example, a mud plough or a suction device from the bottom of a watercourse. Such a container is known in the form of a compartment trough moved by the tug... | 11/06/1984 |
| 4448145 | Unmanned submarine vehicle An unmanned self-propelled submarine vehicle is provided with a material exchanger-container having a vertical axis of symmetry aligned with both the vehicle's center of gravity and its center of volume. The exchanger-container has a moveable diaphragm wh... | 05/15/1984 |
| 4374504 | Suction dredger barge The invention relates to a suction dredge barge in which the air chambers (8,9) on either side of the hold (2) can be filled with mud via an overflow (14) at the top edge of the hold (2) said air chambers (8,9) having inclined bottoms (10,11) and discharg... | 02/22/1983 |
| 4357764 | Submarine vehicle for dredging and raising minerals resting on the sea bed at great depths A submarine vehicle for collecting and raising materials resting on the sea bed at great depths, of the type comprising a load-bearing structure, collecting elements for the materials, storage silos for storing the materials collected and/or the ballast m... | 11/09/1982 |
| 4343098 | Apparatus for mining nodules beneath the sea Polymetallic nodules are collected by means of a plurality of self-propelled vehicles which move upwards and downwards between the sea floor and a surface platform under the action of excess ballast which is partially and progressively released as the veh... | 08/10/1982 |
| 4327505 | Remotely steerable dredge vehicle A dredge vehicle having remote steering for moving on the ocean floor on a skid surface, or preferably a pair of runners. The steering is provided by a steering member extending downwardly below the bottom surface of the skid surface into the mud on the o... | 05/04/1982 |
| 4314414 | Trench digging apparatus and bearing therefor A trench digging apparatus comprising a cutter wheel with picks projecting from the outer periphery thereof. An electric drive motor is provided to rotate the cutter wheel about a substantially horizontal axis. The cutter wheel is supported by a support f... | 02/09/1982 |
| 4280288 | Modular draging unit for collecting solid bodies on an underwater bed A modular draging unit for collecting solid bodies such as polymetallic nodules on an underwater bed such as a sea floor comprises a plurality of collecting structures and a storage structure which are intended to be applied against the sea floor, means f... | 07/28/1981 |
| 4204347 | Device for cutting loose hard ground material Hard ground beneath a water surface is controllably cut away by a device ch includes a buoyant body having a work support depending therefrom and forced against the hard ground so as partially to support the weight of the body. A cutter assembly is relea... | 05/27/1980 |
| 4196531 | Independent unit for the collection and upward transfer of nodules which rest on an underwater bed The end of at least one cable is connected to a float and the other end exerts a tractive effort on one or a number of collecting vehicles which land on the bottom at predetermined points with respect to the point of landing of the ballast which is provid... | 04/08/1980 |
| 4195426 | Extracting ores from the sea bottom In a self-propelled, remotely controlled vehicle adapted to operate on the sea bottom for extracting ores therefrom, a V-shaped tubular structure has at its apexes a system of crawlers for moving the structure on the sea bottom. Underneath each side of th... | 04/01/1980 |
| 4150503 | Apparatus for excavation and earth removal from aquatic bottoms A floatable apparatus provided with a lifting element for displacing it between the surface and bottom of a water basin has at least two jaws or grippers which are suitable for use as a clam-shell bucket or the like. The jaws are suspended from the liftin... | 04/24/1979 |
| 4123858 | Versatile submersible device for dredging or other underwater functions A watertight vertically elongated rigid shell or hull of a size small enough to be transportable over highways has a detachable snorkle extending from its top and contains a power source which may be used to drive pumps within the device and/or to drive m... | 11/07/1978 |
| 4055087 | Aquatic-life depletion-sampling device and technique In a preferred embodiment, a cylindrically-shaped forwardly-screened vessel having an open lower end and an open or netted upper end, and at a rearward wall of the vessel there being a curved collector plate having centrally thereof an outlet port to whic... | 10/25/1977 |
| 3999312 | Water jet type underwater ground excavator In a water jet type underwater ground excavator wherein an underwater pump portion is carried on an excavator body including stabilizer sleds, an excavation portion protrudes downwardly and rearwardly under the excavator body, and water is delivered from ... | 12/28/1976 |
| 3983707 | Method and apparatus for moving an object on the bottom of a body of water A method for moving an object on the bottom of a body of water comprising producing a positive buoyancy in the region of one of the supports of the object to lift the support from the bottom of the body of water and then turning the object in the desired ... | 10/05/1976 |
| 3975784 | Marine structure A marine structure having a buoyant tower flexibly connected to a base on the sea bed. The buoyant tower includes a buoyant tank which is movable in guide tracks extending lengthwise of the tower. The base may have drive tracks for moving along the sea be... | 08/24/1976 |
| 3972137 | Dredging installation Dredging installation consisting of a fixed tower set on the sea bed and prising silos for storing and decanting the dredged materials, with a mobile dredging pipe which can be moved on the sea bed from the silos to the dredging site and a lift pipe goin... | 08/03/1976 |
| 3971593 | Method of extraction of nodular sediments or the like from the sea floor and an installation for carrying In a first step, a mixture of nodular sediments and sea water is collected by dredging along the sea bed and lifted into the separation compartment of an underwater control and storage station connected by tubing to a carrier ship. A volume of air corresp... | 07/27/1976 |
