Abstract: A barrier system for inhibiting marine growth on a submerged component of a boat operates on the principle that limiting the availability of nutrients that marine organisms need to survive and thrive will inhibit the growth of marine organisms. The barrier system, by restricting the exchange of water between the body of water enclosed within the barrier system and the body of water outside of the barrier system, creates and maintains a body of stagnant water which surrounds the submerged component targeted for protection from fouling growth. The submerged component may be a mounting bracket for an outboard engine and the barrier element may be resiliently adjustable in response to the act of tilting the outboard engine.

Abstract: This underwater vehicle for cleaning submerged surfaces comprises a chassis and at least one brush for cleaning the surface to be cleaned, rotationally driven by a motor about an axis of rotation of this brush, the brush being able to move, with respect to a fixed part of the vehicle, in a translational movement along its axis of rotation in such a way that it can be pressed firmly against the surface to be cleaned under the effect of a vacuum created by the rotation of the brush, the brush comprising a rotation shaft inserted into a sleeve that rotates as one with the brush and rotationally driven by a drive system, the brush rotating as one with the sleeve because of fingers fixed to the sleeve and inserted into holes of the brush with the possibility of sliding parallel to the axis of rotation of the brush.

Abstract: A hull cleaning robot, in accordance with an embodiment of the present technology, includes a robot body and a drive module within the robot body for maneuvering the robot about a hull. The drive module includes a drive element for holding the robot on the hull as the robot maneuvers about the hull. The drive element includes a cleaning function for cleaning the hull of a vessel.

Abstract: A method of autonomous hull cleanliness detection includes positioning an autonomous cleanliness detection system over a portion of a hull of a vessel. A cleanliness parameter of the portion of the hull is detected using a detector. The detected cleanliness parameter is compared with a stored cleanliness parameter to obtain a cleanliness differential upon which a cleaning operation or routine may be based and initiated.

Abstract: A hull inspection robot for autonomously inspecting a hull includes a robot body and a drive subsystem onboard the robot for driving and maneuvering the robot about the hull. An autonomous inspection system non-destructively inspects the hull by detecting a state of or near a portion of the hull and comparing the detected state with a stored state of the portion of the hull.

Abstract: An autonomous hull robot navigation subsystem for guiding a hull robot on a hull of a vessel independent of external guidance devices includes a drive subsystem onboard the robot for driving and maneuvering the robot about the hull. A sensor subsystem onboard the robot senses an environmental characteristic. A navigation subsystem onboard the robot is responsive to the sensor subsystem and includes a processor. The processor utilizes the environmental characteristic to determine a position of the robot on the hull.

Abstract: A cover for a boat motor is provided. The cover is for a boat motor of the type having an upper portion having a housing for containing an engine, and a lower portion having a cavitation plate, a propeller for providing propulsion, a skeg for providing directional stability under propulsion, and a transom. The cover includes a first panel and a second panel. Each panel has a shape that generally approximates the lower portion. A first fastener is carried on a substantial length of a periphery of the first panel. A second fastener is carried on a periphery of the second panel and is mutually engageable with the first fastener. The first and second panel are positioned on opposing sides of the lower portion and fastened to each other by the first and second fasteners to form an enclosure for covering the lower portion of the boat motor.

Abstract: A boat hull cleaning system including at least one flexible line having a central portion to which a plurality of cleaning elements attach in spaced engagement disposed between a first grippable portion and a second grippable portion.

Abstract: Method and device for cleaning a marine seismic equipment. The device includes a body, a propulsion system for moving along the streamer, a cleaning device for cleaning the equipment, and a control device for controlling a movement of the device.

Abstract: An implement (10) for cleaning at least partially submerged parts of watercraft, the cleaning implement comprising a cleaning head (1) connectable to an elongate support (40), wherein the cleaning head has a greater tran/sverse dimension than the elongate support. The cleaning implement is provided with a deflection surface extending between the cleaning head and the elongate support, such that impingement of an obstacle on the deflection surface, during longitudinal movement of the cleaning head, in use, would cause the cleaning head to be deflected transversely until clear of the obstacle. The cleaning head may have at least one air chamber (11), the air chamber having an open lower end and being adapted to be submerged, in use, such that air is retained within the at least one air chamber to provide buoyancy during use.

Abstract: A pole-cleaning device sleeve having a pole-like member with a proximal end, a distal end, opposite to the proximal end, and a length separating the distal and proximal ends, the pole-like member having a head portion defining a working surface and being coupled to the distal end of the pole-like member, the pole-cleaning device also having a removably couplable sleeve with a distal end substantially adjacent to the head portion, a proximal end terminating at a location along the pole-like member length, and a sleeve length separating the distal and proximal ends, an outer layer being of a substantially deformably-resilient and polymer-based material, an inner layer coupled to the outer layer and contacting an outer surface of the pole-like member, and the outer and inner layers encapsulating at least a portion of the pole-like member.

Abstract: A cleaning system includes a chassis supporting a propulsion system for propelling the cleaning system across a surface. At least one sensor of a first type is coupled to the chassis, and a surface engagement mechanism is configured to maintain the cleaning system coupled to the surface as the propulsion system propels the cleaning system across the surface. A cleaning device is coupled to the chassis and configured to abrade the fouling from the surface, and a controller coupled to the chassis and in signal communication with the propulsion system and the first sensor. The controller is configured to receive a signal from the at least one sensor of the first type and control the propulsion system in response to the signal.

Abstract: A cleaning system includes a chassis supporting a propulsion system for propelling the cleaning system across a surface. At least one sensor of a first type is coupled to the chassis, and a surface engagement mechanism is configured to maintain the cleaning system coupled to the surface as the propulsion system propels the cleaning system across the surface. A cleaning device is coupled to the chassis and configured to abrade the fouling from the surface, and a controller coupled to the chassis and in signal communication with the propulsion system and the first sensor. The controller is configured to receive a signal from the at least one sensor of the first type and control the propulsion system in response to the signal.

Abstract: A cleaner for the hulls of boats or ships comprises a supporting frame (2), at least one cleaning element (5) associated with the frame (2) and which can be positioned opposite a surface (4) to be cleaned, hold-down means (7) connected to the frame (2) and acting between the frame (2) and the surface (4) to be cleaned, for keeping the cleaner in contact with the surface to be cleaned, and movement means (13) associated with the frame (2) for moving, in conjunction with the hold-down means (7), the frame (2) along the surface (4) to be cleaned.

Abstract: A submersible robot for operating a tool relative to a surface of an underwater structure has a tool holder movably mounted on a support assembly provided with a driving arrangement for movably holding the tool in operative position relative to the surface. Position and orientation of the support assembly relative to the surface is locked and adjusted by locking and leveling arrangements. A programmable control unit operates the driving, locking and leveling arrangements and the tool and receives measurements from a sensor unit. The control unit has an operation mode wherein a positioning of the robot is determined and controlled as function of an initial position for defining a first work area, and shifted positions of the robot for defining additional work areas, the work areas having overlapping portions with one another for tracking displacements of the robot relative to the surface of the structure using the sensor unit.

Abstract: A vessel hull robot garage includes a stowage compartment for stowing a hull robot and a rotation system for rotating the stowage compartment relative to the vessel between a launch/recovery attitude and a stowed position.

Abstract: A vessel hull robot navigation subsystem and method for a robot including a drive subsystem onboard the robot for driving the robot about the hull. A sensor subsystem onboard the robot outputs data combining robot and vessel motion. A memory onboard the robot includes data concerning the configuration of the hull and a desired path of travel for the robot. A fix subsystem communicates position fix data to the robot. A navigation processor onboard the robot is responsive to the memory data, the sensor subsystem, the position fix data, and the data concerning vessel motion. The navigation processor is configured to determine the position of the robot on the hull by canceling, form the sensor subsystem output data combining both robot and vessel motion, the determined vessel motion.

Abstract: A boat hull cleaning system including at least one flexible line having a central portion to which a plurality of cleaning elements attach in spaced engagement disposed between a first grippable portion and a second grippable portion.

Abstract: A biomimetic system for mitigating marine bio-fouling is disclosed which is based upon the sacrificial skin mechanism found in the pilot whale species. The anti-bio-fouling system is characterized by the continuous in-situ underwater formation of a conformal protective skin around a submerged object or structure and employs a circulatory system embedded in a diffuser layer conformably fitted and secured to the structure to controllably deliver a sacrificial skin-forming material to the structural surface. The system advantageously utilizes the unique chemical properties of the skin-forming material to alter the material's viscosity in response to contact with sea water such that the material is uniformly distributed over the structure surface by a self-diffusion process, notwithstanding structural configuration or gravitational orientation, thus forming a stabilized waterproof layer or sacrificial skin.

Abstract: A support head capable of generating suction upon the rotation thereof has a body that defines a first surface, a second surface opposing the first surface, a peripheral edge, and an open region formed in a central portion of the second surface. Work producing elements such as spray nozzles are mounted in the first surface. Each of a first plurality of holes extends between the first surface and the second surface. Each of a second plurality of holes extends between the peripheral edge of the body and the open region of the body. When the body is positioned over the surface with the first surface opposing same, suction forces are generated as the body is rotated.

Abstract: A scraping tool includes a first scraping head, a bracket affixed to the first scraping head, and an elongated pole removably coupled to the bracket access hard-to-reach target zones. In one embodiment, the bracket and the pole are freely articulated along a 360 degree circular path defined adjacent to the outer surface. In another embodiment, the bracket is statically affixed to the first scraping head and a connector is removably engaged with the bracket to quickly reconnect a variety of scraping heads. A rigid fastening member traverses through the connector as well as the second bore respectively. In another embodiment, a second scraping head is affixed to the connector for enabling the user to quickly toggle between the first and second scraping heads.

Abstract: A device for cleaning a boat hull which provides a flexible line having central portion along which a plurality cleaning elements have spaced engagement with each of the plurality of cleaning elements having body from which a plurality of flexible members extend outwardly and thorough which the flexible line centrally passes and methods of using such device for cleaning a boat hull.

Abstract: An underwater camera apparatus for use in obtaining photograph images of underwater structures is disclosed. The apparatus is comprised of a sealed box having a defined interior space with a transparent front face. A lens adaptor is mounted in an opening on the rear face of the box and a camera having a lens is mounted onto the lens adaptor. The box is provided with a removable cap plate allowable sealable access to the interior space of the box. The removable cap plate is used to fill the box with clear water to assist in making the apparatus buoyant neutral in an underwater environment.

Abstract: A device capable of adhering to and moving along the surface of an object, comprising: the main casing comprising an outer casing and an inner casing; an outer sealing member mounted at the opening of the outer casing, part of which is caused to contact the surface of the object; an inner sealing member mounted at the opening of the inner casing, part of which is caused to contact the surface of the object; and a means for moving along the surface of the object while maintaining the distance between the main casing and the surface of the object at a certain distance; wherein the outer casing, the outer sealing member and the inner sealing member, together with the surface of the object, define Area I, and the inner casing and the inner sealing member, together with the surface of the object, define Area II; wherein the pressure of fluid in Area I is maintained at a lower level than the pressure of fluid surrounding the Device, and the pressure of fluid in Area II is maintained at a higher level than the pres

Abstract: Device for cleaning an underwater lying surface, wherein the device comprises a movable frame with at least one rotating brush which allows the device to pressed against or sucked against said surface during movement of the device, wherein furthermore a drive for the brush or brushes is provided, wherein the device is provided with means which prevent that particles that are released during cleaning of the surface, spread around in the water flowing around the surface and around the device.

Abstract: A self-contained boat cleaning system that dispenses water, soap, wax and/or spot-free rinse chemicals. Cleaning fluids are distributed via conduits which can be concealed inside the rub rail, mounted near the rub rails or other surfaces of the boat, or alternatively can be installed inside the bulkheads of the vessel. Fluid apertures direct the spray of water and/or cleaning fluids to predetermined surfaces of the boat. A pump and associated reservoir system (containing built in reservoirs for cleaning fluids, chemicals, waxes, spot-free chemicals, etc) can be mounted anywhere inside the vessel. The water supply used by the system can be supplied either from shore water or from a fresh water holding tank on board and fed into the onboard water filtration system. An optional timer which can be used to start the process at predetermined times. In addition, the boat washing system can be activated via remote control.

Abstract: An apparatus for treating a surface bounding a space within which a bulk supply of flowable material can be contained. The apparatus has an elongate support with a proximal region and a distal region. At least one flexible tube is provided at the distal region of the elongate support through which a fluid from a pressurized supply can be directed. The at least one flexible tube is movable continuously in a whipping action to thereby cause a force to be applied to a surface at or adjacent to which the flexible tube is located to thereby at least one of: a) apply a fluid; and b) separate matter adhered, to a surface at or adjacent to which the flexible tube is located. The apparatus further has a moving assembly for the elongate support. The moving assembly is operable to controllably reposition and/or reconfigure the elongate support, thereby to controllably place the at least one flexible tube at different selected locations with respect to a surface to be treated by the apparatus.

Abstract: An apparatus for inhibiting and removing marine deposits from a submerged portion of a boat or yacht include a submersible stainless steel frame having a plurality of sections extending longitudinally and transversely under the submerged portions of a watercraft and a plurality of nozzles disposed on said sections of the frame to direct a stream of air bubbles toward and against the submerged portion of the watercraft. The apparatus also includes an air compressor, a battery and a solar source of energy for charging the battery to power the air compressor. A plurality of valves and hoses are also provided for connecting each of the nozzles to the air compressor through one of the valves to thereby control the flow of air to each of said nozzles on each of said sections of the frame. A mechanism for positioning the frame and nozzles at about 40 cm away from the lowest point of a watercraft is provided as well as a timer for periodically starting and stopping the flow of air to the nozzles.

Abstract: The invention relates to a hand controlled cleaning apparatus used to clean away debris from a boat hull. The apparatus includes a brush at one end that is rotated by either an engine or an electric motor. The user controls the brush with an extended arm portion that may house a flexible shaft or conduits for power. The brush rotates in a direction that makes the apparatus more buoyant during use and gains better traction against the boat hull.

Abstract: A method and apparatus for the cleaning of an underwater surface, such as a hull. The method and apparatus enables cleaning to be conducted while mitigating the release of removed material into surrounding waters. The integrated apparatus includes a cleaning deck for removing fouling from the underwater hull surface, and a pre-processing deck with integrated components for the processing of cleaning effluents. According to the method and apparatus, materials removed by the shroud are sucked into the pre-processing deck, crushed, and separated into a separator effluent that may be recycled to the shroud, and a concentrate, which is discharged to a land treatment unit for further processing.

Abstract: The invention is an ecological friendly apparatus and method for preventing the fouling of the submerged part of a boat hull by creating a pocket of still and dark water around the boat hull. The darkness prevents algae, seaweed, and other types of sea life, such as plankton, from growing and developing by depriving them of the light needed for their existence. The absence of algae, light, and current caused by the present invention eliminates the food necessary for barnacles and mussels to survive, so barnacles and mussels are also prevented from fouling the boat hull.

Abstract: A method for water jet stripping and recontouring of a coated article of manufacture is provided. The method includes dimensionally scanning the coated article and establishing a three-dimensional model for the coated article. The method further includes establishing a set of reduced dimensional profiles for recontouring and then analyzing whether the reduced profiles are satisfactory for subsequent operation. A jet spraying program is established for removal of the coating and the surface base material to each predetermined reduced dimensional profile.

Abstract: A hull robot includes a robot body, at least one drive module for maneuvering the robot about the hull, an on-board power source, and a motive subsystem for the drive module powered by the on-board power source. A plurality of permanent magnet elements are associated with the drive module and each are switchable between a non-shunted state when adjacent the hull and a shunted state when not adjacent the hull.

Abstract: A vessel hull robot garage includes a stowage compartment for stowing a hull robot and a rotation system for rotating the stowage compartment relative to the vessel between a launch/recovery attitude and a stowed position.

Abstract: A method and apparatus for the cleaning of an underwater surface, such as a ship hull. The method and apparatus enables cleaning to be conducted while mitigating the release of removed material into surrounding waters. The integrated apparatus includes a cleaning vehicle for removing fouling from the underwater hull surface, and a land treatment unit for treating liquid waste that is conveyed to the land treatment unit from the cleaning vehicle. The cleaning vehicle may include a pre-processing unit that pre-treats substances removed during the cleaning process.

Abstract: An apparatus for inhibiting and removing marine deposits from a submerged portion of a boat or yacht include a submersible stainless steel frame having a plurality of sections extending longitudinally and transversely under the submerged portions of a watercraft and a plurality of nozzles disposed on said sections of the frame to direct a stream of air bubbles toward and against the submerged portion of the watercraft. The apparatus also includes an air compressor, a battery and a solar source of energy for charging the battery to power the air compressor. A plurality of valves and hoses are also provided for connecting each of the nozzles to the air compressor through one of the valves to thereby control the flow of air to each of said nozzles on each of said sections of the frame. A mechanism for positioning the frame and nozzles at about 40 cm away from the lowest point of a watercraft is provided as well as a timer for periodically starting and stopping the flow of air to the nozzles.

Abstract: A refurbishing system for refurbishing a barge includes transport systems that pull the barge out of water and onto a shelf above water level, then pull the barge into a covered blast system and a covered coating system. A reclamation system receives spent abrasive media. The transport systems then move the refurbished barge back into the water. The transport systems move the barge without substantially tilting it or changing its orientation.

Abstract: A Portable Dry Dock (PDD) system designed for commercial servicing of recreational vessels (RVs) in inland waterways (IW). This PDD is disassembled and transported from one IW to another. This PDD was designed specifically to improve the efficiency in the most typical maintenance jobs in RVs. The convenient layout of the equipment and the closed environment of the PDD reduce the execution time and improve the working conditions. The isolated environment created by the superstructure, deck and roof of the PDD significantly reduces the environmental impact. The isolated environment inside the PDD is controlled in temperature and humidity. The air filtering and waste water collection systems remove dust and other substances coming from the operation, stopping pollutants from getting into the IW.

Abstract: A method of significantly reducing marine fouling is taught, incorporating the use of light in the area around an underwater surface, to detract zoo plankton and salps. These marine organisms are generally nocturnal to avoid optical predators such as fish. As a result they will avoid bright areas. Lights can be provided in fenders around a boat or the like, which can direct light to the area around an underwater surface of the vessel. Alternatively lights could be positioned over the underwater surface. In addition, the underwater surface can be made reflective to increase the light levels around the vessel. In a further alternative, the underwater surface can be coated in a bio or chemo-luminescent coating.

Abstract: An automatic boat washing system including several brush assemblies mounted on a vertically movable cage supported by a mainframe assembly and side ballast tanks is disclosed. The vertical position of the movable cage and brush assemblies may be adjusted in relation to the mainframe and ballast tanks during operation of the system. Rollers are used for supporting and drawing boats through the automatic boat washing assembly. The automatic boat washing assembly of the present invention may be used to clean powerboats in areas below the waterline in order to improve boat performance.

Abstract: Antifouling materials are used to provide first and second layers or coatings on a submersible object. The first and second layers are visually distinct from each other, such as being made of two distinct colors, so that the ablation of an outer layer will be evident when an inner layer is exposed to show a different color in the regions of ablation. The materials for the first and second layers can be chemically active to cause the antifouling nature of the materials or can be electrically conductive to permit their use in the creation of either chlorine bubbles on the wetted surface or a change in ionic characteristic of water in contact with the wetted surface.

Abstract: A docking and cleaning device comprising a frame having scrubbers affixed thereto for cleaning a boat hull at a horizontal section, such as the waterline. The frame comprises a movable elongated member so that when the frame is in an “open” position, the elongated members provide an opening through which a boat may pass, entering into a docking area formed by the frame. The elongated member is moved so that the frame is in a “closed” position where the frame substantially conforms to the shape of the boat hull. Wave motion acting on the boat and the frame allow the scrubbers to frictionally contact and clean the boat hull at the waterline.

Abstract: An article has a surface topography for resisting bioadhesion of organisms and includes a base article having a surface. A composition of the surface includes a polymer. The surface has a topography comprising a pattern defined by a plurality of spaced apart features attached to or projected into the base article. The plurality of features each have at least one microscale dimension and at least one neighboring feature having a substantially different geometry. An average feature spacing between adjacent ones of the features is between 10 ?m and 100 ?m in at least a portion of the surface. The surface topography can be numerically represented using at least one sinusoidal function. In one embodiment, the surface can comprise a coating layer disposed on the base article.

Abstract: A hull robot includes a turbine subsystem actuatable by fluid moving past the hull, a drive subsystem for maneuvering the robot about the hull, and an adjustment subsystem for either the turbine subsystem or the drive subsystem. A controller is configured to operate the adjustment subsystem to adjust the position of the turret subsystem relative to the drive subsystem until fluid flowing past the hull results in an optimal flow of fluid with respect to the turbine subsystem.

Abstract: A hull cleaning robot includes at least one cleaning apparatus for cleaning the hull of a vessel, at least one drive track holding the robot on the hull as the robot maneuvers about the hull, and at least one turbine actuatable by water flowing past the hull for operating the at least one drive track and, optionally, the cleaning apparatus.

Abstract: Device for cleaning of surfaces under water, such as ship hulls, includes a rotary disc furnished with nozzles for discharge of pressurized liquid against the surface to be cleaned. The nozzles are mounted obliquely in relation to the rotational axis of the rotary disc and are arranged to be supplied with pressurized liquid through a hollow spindle that is concentric with the rotational axis. The nozzles have an inclination that have an orientation involving that the velocity component (Vp) of the liquid jet from each nozzle that is not perpendicular to the surface to be cleaned, has a tangential velocity component (Vt) that has the same direction as the direction of rotation (R) of the rotary disc and optionally a radial velocity component that is positive, i.e. that is directed outwards in relation to the center of the disc.

Abstract: A vehicle includes a submersible housing and a propulsion mechanism, which is coupled to drive the housing over an interior surface of a container in which the housing is submerged. A hollow tube is fixed to the housing and is configured to be filled with a fluid having a first specific gravity. One or more objects, which have a second specific gravity that is less than the first specific gravity, are contained within and capable of moving inside the hollow tube so as to stabilize the housing in response to changes of an angle of the interior surface over which the vehicle travels.

Abstract: An article has a surface topography for resisting bioadhesion of organisms and includes a base article having a surface. A composition of the surface includes a polymer. The surface has a topography comprising a pattern defined by a plurality of spaced apart features attached to or projected into the base article. The plurality of features each have at least one microscale dimension and at least one neighboring feature having a substantially different geometry. An average feature spacing between adjacent ones of the features is between 10 ?m and 100 ?m in at least a portion of the surface. The surface topography can be numerically represented using at least one sinusoidal function. In one embodiment, the surface can comprise a coating layer disposed on the base article.

Abstract: The present invention relates to an ultra-sonic device, which can be utilised in an aquatic environment to inhibit growth of waterborne flora and fauna. In particular, the present invention relates to a method of reducing such growth and the removal from the underside of yachts, boats and the like. In general, the present invention relates to anti-fouling systems as are known to prevent biological growth such as algae, seaweed and crustacea on marine vessels or underwater structures. Coating materials have been developed preventing corrosion due to oxidation of the surface of the structure. Although such materials have effects of retarding growth of the corrosion, however, they contain zinc, lead, copper, etc, raising a problem of environmental pollution due to dissolution of these metals into seawater.

Abstract: A self-contained boat cleaning system that dispenses water, soap, wax and/or spot-free rinse chemicals. Cleaning fluids are distributed via conduits which can be concealed inside the rub rail, mounted near the rub rails or other surfaces of the boat, or alternatively can be installed inside the bulkheads of the vessel. Fluid apertures direct the spray of water and/or cleaning fluids to predetermined surfaces of the boat. A pump and associated reservoir system (containing built in reservoirs for cleaning fluids, chemicals, waxes, spot-free chemicals, etc) can be mounted anywhere inside the vessel. The water supply used by the system can be supplied either from shore water or from a fresh water holding tank on board and fed into the onboard water filtration system. An optional timer which can be used to start the process at predetermined times. In addition, the boat washing system can be activated via remote control.