Abstract: A remote-controlled, semi-autonomous or autonomous recovery apparatus includes a drive as well as a unit for launch and recovery of an autonomous underwater vehicle. The drive is dimensioned such that a large range, such as more than 5 nautical miles, is obtained.

Abstract: Disclosed is a vessel with a semi automatic or automatic vessel mooring system and a method of mooring with such a system. The vessel includes a hull, a mooring line winch unit, at least one mooring line extending from said winch unit, and a weight at an end of the at least one mooring line. A mooring line guide boom with at least one mooring line guide on a mooring line guide portion is movable between a retracted position aligned with the hull, and an extended position. In the extended position the mooring line guide boom allows the winch unit to lower the weight at the end of the mooring line extending through the mooring line guide and onto a quay.

Abstract: A boat lift includes posts and linear actuators, each attached to one of the posts. Each linear actuator includes an extendable and retractable member oriented for extension and retraction substantially parallel to the post. Ends of a first pair of the extendable and retractable members are connected to a first carrier, and ends of a second pair of the extendable and retractable members are connected to a second carrier. A cradle or platform is supported by the first and second carriers. The boat lift may be supported by the ground, by a structure, for example, a dock, a sea wall or a wall of a boat house, or by pontoons.

Abstract: A marine propulsion system includes an engine-powered propulsion device coupled in torque-transmitting relationship with an engine. A non-engine-powered propulsion device is coupled to a source of electric or hydraulic power. A control module is provided in signal communication with the engine-powered propulsion device and the non-engine-powered propulsion device. A user-operated input device is in signal communication with the control module. The marine propulsion system operates in a non-engine-powered propulsion mode in response to the control module determining the following: the engine was previously running; a speed of the engine is below an engine-stopped speed threshold; the marine propulsion system is on; and a request for movement of the vessel has been input via the user-operated input device.

Abstract: A personal watercraft hull has a bow, a keel, starboard and port upper edges, a starboard portion extending between the keel and the starboard upper edge, a port portion extending between the keel and the starboard upper edge, and a transom. The starboard portion has a starboard row of grooves. The port portion has a port row of grooves. The rows of grooves extend in a longitudinal direction and are laterally offset from the longitudinal centerline and from their corresponding upper edge. The grooves of the rows of grooves define recesses in an outer surface of the hull. A personal watercraft having the personal watercraft hull is also disclosed.

Abstract: A pontoon boat is provided that includes at least two pontoons running longitudinally beneath the boat and providing buoyancy thereto; a deck framework mounted above and connected to the pontoons; a deck mounted on the deck framework; a recessed deck portion extending downwardly through the deck and the deck framework, the recessed deck portion forming a cavity into the deck including a bottom and side walls forming a basin extending into and beneath the deck; and at least one seat adjacent the recessed deck portion and mounted to the deck.

Abstract: A retractable entry/exit system for a boat that mounts below a swim platform or other similar boat structure. The system has a main frame, a linkage, a number of step assemblies and a single actuator. The actuator is configured to move the linkage to selectively extend or retract the step assemblies. When retracted, the system is folded into a compact arrangement under the mounting structure. When extended, the step assemblies extend beyond the mounting structure, where they can be used to conveniently enter and exit the boat or as a place to rest, lounge, sit or otherwise enjoy the water. The linkage may include a bell crank assembly with integral linkage arms, as well as a pair of supplemental linkage arms. The linkage arms may be disposed toward opposite sides of the system and may be operatively coupled to step brackets that support opposite ends of each step assembly.

Abstract: A high speed actuation system for protracting and retracting a retractable wheel and/or track drive assembly of an amphibian includes an actuator, at least one retractable wheel and/or track drive assembly comprising at least one wheel and/or track drive supported directly or indirectly by a suspension assembly and movable between a protracted and retracted positions, an energy source for providing power to the actuator, and a controller that controls in amount the power provided by the energy source to the actuator such that the time of actuation to retract the at least one retractable wheel and/or track drive assembly from a protracted position to a retracted position, or to protract the at least one retractable wheel and/or track drive assembly from a retracted position to a protracted position, is less than 5 seconds.

Abstract: Method for determining a spatial property of a submerged object in a 3D-space, using an underwater moveable platform, that is provided with a camera and with a position and orientation measurement system configured to output a position and orientation of the camera. The method includes receiving user input for visually fitting a bounding volume to the object, and determining the spatial property of the object based on a corresponding spatial property of a bounding volume once the user is satisfied that the bounding volume sufficiently fits the object. The method provides an interactive manner of visually fitting the bounding volume to the object, based on images of the object taken at different positions and/or orientations of the camera relative to the object, as well as on a representation of a position and orientation of the camera in the 3D space at the time each image was captured.

Abstract: A subsea assistance system for supporting saturation diver operations includes an unmanned underwater vehicle (UUV) such as an observation remotely operated underwater vehicle (ROV) that can be flown to a subsea worksite, and various items of ancillary electrical equipment that are connected or subsea-connectable to the UUV or to a skid forming part of the UUV. Those items can include any of: a hand-portable subsea display that displays an image to a diver communicated from the UUV, which image can be generated or enhanced underwater and/or by surface support; a subsea camera that captures subsea image data for communication to the UUV and from the UUV to surface support; and a selection of electrical power tools for performing subsea tasks. Fast-acting protective devices protect divers when using high-voltage wet-mateable subsea connectors on the UUV.

Abstract: A semi-submersible drilling vessel has a deckbox structure, one or more pontoons, and multiple support columns extending upward from the one or more pontoons and supporting thereon the deckbox structure. An annular riser joints storage caisson extends downwardly from the deckbox structure, wherein the storage caisson delimits an annular storage space configured for storage therein of an annular array of riser joints in vertical orientation thereof. A riser joints carousel device is provided in the annular storage space, which riser joints carousel device is configured to carry an annular array of riser joints in vertical orientation thereof in a mobile manner relative to the annular storage caisson so that the array of riser joints is movable along an annular path through the storage spaced between the inner and outer wall of the storage caisson.

Abstract: The invention relates to a fiber reinforced structural component, which may be used in a surfboard for stand-up paddling, wave riding, wind surfing and the like, comprising a body made of plastic, wherein the body is delimited by a surface, to which a laminate layer made of a fiber mat and a matrix is undetachably connected. The surface has at least one circumferential groove-shaped recess, by means of which a predetermined partial area of the surface is delimited.

Abstract: The present disclosure relates to an autonomous underwater vehicle (AUV) launch and recovery device driven by an elastic linkage mechanism for an extra-large unmanned underwater vehicle (XLUUV). The AUV launch and recovery device includes a hydraulic device, a push plate and a tubular device box, where the tubular device box adopts a frame-type tubular structure with a closed end; the push plate is fixed to a hydraulic rod, the hydraulic rod is controlled to stretch, and furthermore, the push plate is controlled to radially slide in a groove; and as the push plate is controlled to move radially, an inner diameter of a ring part of the inelastic linkage rope is narrowed or enlarged, so that inelastic hauling ropes are pulled to move axially, and the front end of the elastic rubber plates is further pulled to achieve an expanding or contracting state of an recovery/launch opening.

Abstract: A transducer mount assembly includes a housing and a motor coupled to and disposed within the housing. An elongated rod extends from the housing and is operably coupled to the motor. The motor is configured to rotate the elongated rod about a longitudinal axis of the elongated rod in a first direction and a second direction opposite the first direction. A controller is in communication with the motor and is configured to selectively direct the motor to rotate the elongated rod in the first direction and the second direction. A boat mount bracket is configured to couple the transducer mount assembly to portion of a boat. A transducer mount bracket is configured to couple a transducer to the elongated rod.

Abstract: An article of manufacture including molded-in cavities that permit the installation of recessed trolling motor foot pedals and seat pedestal bases in such a manner that allows water to drain away from thereof so as to prevent the accumulation of standing water. The article of manufacture includes a body, wherein the body is a plastic molded boat hull comprised of numerous molded-in cavities and molded-in features to create an interior layout that is comparable to a conventional boat built of aluminum or fiber reinforced plastic.

Abstract: The mooring connector has a hollow body or shell and a central core. The hollow body or shell is formed from an engineering polymer, e.g. polyamide, and is generally cylindrical and has two shell parts. The hollow body has an outer surface and an inner surface. The outer surface has a central groove portion or rope running surface and two outer groove portions or rope running surfaces. The two outer groove portions or rope running surfaces are tapered, such that the outer groove portions are not equally spaced from the central groove portion around the entire circumference of the hollow body or shell. The central core is a solid body that is formed from a metallic material, for example steel. The central core is generally cylindrical and has a shape that is configured to correspond to the shape of the recess of the hollow body or shell. The central core has a central portion and arms that extend from the central portion to outer flanges.

Abstract: An objective of the present invention is to provide an underwater ship attachment that is used to divert air, debris, and pressure fluctuations. More specifically, the present invention discloses an anti-cavitation device (such as a diverter device) for flat-bottom boats. The air diverter has been developed to regain, enhance, and protect the operational function of propulsive and steering equipment among displacement and semi displacement hulls. As with protect items such as bottom mounted depth sounder transducers, intakes for engine or general cooling, sea chests, keel coolers, zincs, and all other underwater mounted items susceptible to air ingestion, air disturbance malfunction or debris impact.

Abstract: A modular compartment bulkhead assembly is provided that includes a first external body, a bulkhead, and a second external body. The first external body segment may include a first end portion. The first end portion may be coupled to an external seal body and the external seal body may include a first internal channel. The bulkhead may include an internal seal body. The internal seal body may be configured to be inserted into the first internal channel of the external seal body to form an internal seal between the bulkhead and the first external body segment. The second external body segment may include a second end portion. The second end portion may include a second internal channel, and the external seal body may be configured to be inserted into the second internal channel to form an external seal between the external seal body and the second external body segment.

Abstract: A hull locating arrangement for a vessel is disclosed that has a body at least partially suspended above at least a first hull by at least one support. The hull locating arrangement includes for the first hull a forward locating linkage and a rearward locating linkage, each of the forward locating linkage and the rearward locating linkage being connected between the first hull and the body to together constrain said hull in the lateral, longitudinal, roll and yaw directions relative to the body. The forward locating linkage includes a forward radius arm and a drop link, the drop link being pivotally connected to the radius arm. The rearward locating linkage includes a rearward radius arm connected between the body and the first hull.

Abstract: STAXLINK™ is a duct system and method for conveying exhaust gas from an exhaust pipe of an emissions source to a purification unit during an Emissions Reduction as a Service (ERaaS) operation. Example emissions sources include oceangoing vessels and buildings structures. The duct is temporarily installed onto the emissions source without a crane. The duct is supported by the emissions source itself for the duration of the ERaaS operation.