Abstract: An improved swim noodle system is described. The system has a first interlocking swim noodle including a first central core defining a first longitudinal axis coaxial with the first central core and a first periphery disposed about the first central core. The first elongated swim noodle further comprises alternating nodes and alcoves disposed about an entirety of the first periphery. The first nodes diverge outwardly from the first central core and extend longitudinally generally parallel to the first longitudinal axis. The first alcoves converge outwardly from the first central core and extend longitudinally generally parallel to the first longitudinal axis. The first nodes and the first alcoves are arranged to mate by resistance fit with the second elongated swim noodle.

Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a water vehicle including a deck that accommodates a group of passengers above a waterline and an observation gondola accommodating the group of passengers below the waterline. The access between the observation gondola and the deck is provided by way of an aperture in a top of the observation gondola. The observation gondola includes a transparent floor and walls allowing the group of passengers to enjoy an underwater experience without exposure to the water and while maintaining an unobstructed panoramic view of the underwater environment. The underwater observation gondola can include a substantially open top, which may include a sun screen or weather protective cover. The open top exposes the observation gondola to fresh air, while alleviating any claustrophobic sensations as might otherwise be experienced by passengers during underwater observation. Other embodiments are disclosed.

Abstract: A hydrogen based mixing system for the fabrication of nanoparticles allowing for selection of specified particle size, narrow particle size distribution and core shell nanoparticle encapsulation. A further description of a Dense Energy UltraCapacitor that utilizes the core shell nanoparticles to create an energy storage device.

Abstract: A watercraft having a seat securely carried on the watercraft, the seat having a plastic seat frame and a plastic seat back frame. The seat frame and the seat back frame are joined via a hinged connection. The bottom of the seat frame has receptacles that easily engage with engagement elements mounted on the deck of the watercraft. The seat has mechanism to easily adjust the height of the front of the seat, the height of the rear of the seat, the recline angle, and the amount of lumbar support. The seat has four legs stored under the seat frame which can be plugged into the seat frame to turn the seat into a lawnchair.

Abstract: A rigid wing sail fitted to a water-borne vessel. The rigid wing sail includes a pair of elongate rigid panels, and a hinge element designated generally as coupled to the panels to permit pivotal movement of the panels relative to one another. Each of the pair of panels includes an adjoining edge and an opposing lateral edge. The hinge element is coupled to the panels at the respective adjoining edges to form either a closed configuration of the wing with lateral edges of respective panels positioned adjacent one another wherein the rigid wing sail is closed or an open configuration of the wing with the lateral edges of the respective panels separated from one another wherein the rigid wing sail is set at a variable camber.

Abstract: A boat brush tool for cleaning a boat pontoon, the boat brush tool having a generally J-shaped tubular support member with an upper section for manipulating the tool and a lower section carrying a plurality of brush bristles and having a curved shape corresponding to the outer surface of the pontoon.

Abstract: A sport board with a forward outboard extension for supporting an action camera. The extension member has a curved section between generally straight sections that places the action camera forward and slightly above the surface of the board. The extension member may be a unitary member mounted on either surface of the board, or a two-piece member, with one piece mounted on the upper surface and another piece mounted on a lower surface. When the sport board is a surfboard, the construction of the extension member resembles a fin.

Abstract: The present invention provides a propulsion system for a vessel such as a service vessel or supply vessel. The vessel has a hull with a midship portion and a stern portion. The propulsion system comprises two propulsion units fixedly mounted to the hull on opposite sides of a centre line of the hull at the stern portion, each of the propulsion units comprising a housing carrying a propeller externally of the housing. The housing further defines an interior volume in which a drive machinery is provided for driving the propeller via a propeller shaft, the interior volume being open to the interior of the hull. A vessel comprising the propulsion system and a method of retrofitting a hull with the propulsion system are also provided.

Abstract: A catamaran lifting apparatus is disclosed for lifting objects in a marine environment. The apparatus includes first and second vessels that are spaced apart during use. A first frame and a second frame each spans between the vessels. The frames are spaced apart and connected to the vessels in a configuration that spaces the vessels apart. The first frame connects to the first vessel with a universal joint and to the second vessel with a hinged connection. The second frame connects to the second vessel with a universal joint and to the first vessel with a hinged or pinned connection. Each of the frames provides a space under the frame and in between the barges that enables a package to be lifted and/or a marine vessel to be positioned in between the barges and under the frames. An object that has been salvaged can be placed upon the vessel.

Abstract: A system for rope cleating is disclosed. A system incorporating teachings of the present disclosure may include a cleating component, an anchoring component, and an exterior shell. In practice, the system may facilitate connecting a boat to a dock even if the boater is unfamiliar with proper nautical knots.

Abstract: The invention relates to a method and device for actively damping a ship's motion while the ship is sailing including driving at least one first rotatable damping element that extends from the ship's hull, below the water line, on a side of the ship. According to the invention, the method is characterized by the steps of: i) sensing the ship's motion and sailing speed, ii) generating and delivering control signals on the basis of step i), iii) rotatably driving the stabilization elements on the basis of step ii), iv) determining, on the basis of step i), the current frictional resistance experienced by the stabilization elements at the sensed motion and sailing speed of the ship, v) setting the stabilization element at an angle relative to a longitudinal axis of the ship on the basis of the determined current frictional resistance and a desired minimum frictional resistance.

Abstract: Embodiments described herein provide a highly reliable UUV recovery systems and methods that utilize multiple independent release mechanisms that can detach a load and allow the UUV to float to the surface of the water. One embodiment is a recovery system for a UUV. The recovery system includes a detachable load that renders the UUV neutrally buoyant in water. The recovery system further includes a plurality of release mechanisms that detach the load to render the UUV positively buoyant in the water. The release mechanisms include a first, second, and third release mechanism. The first release mechanism detaches the load in response to a command signal. The second release mechanism detaches the load in response to the UUV being submerged in the water beyond a threshold time. The third release mechanism detaches the load in response to the UUV exceeding a maximum depth in the water.

Abstract: A method of decelerating a watercraft is disclosed. The watercraft has a hull, a deck, a seat, a motor connected to at least one of the hull and the deck, a jet propulsion system operatively connected to the motor, and a reverse gate connected to at least one of the hull and the jet propulsion system. The reverse gate is movable between at least a stowed position and a deceleration position. The method has the steps of: receiving a deceleration signal; moving the reverse gate toward the deceleration position in response to receiving the deceleration signal; as the reverse gate is moving toward the deceleration position, increasing a thrust request at an intermediate position of the reverse gate, the intermediate position being intermediate the stowed and decelerations positions; and increasing the speed of the motor in response to increasing the thrust request.

Abstract: A power train for an amphibian includes a first prime mover, a first land propulsion unit, and a first marine propulsion unit. The first prime mover is arranged to selectively drive the first land propulsion unit, or the first marine propulsion unit, or both. The power train further comprises a second prime mover. The second prime mover is arranged to selectively drive the first land propulsion unit, or the first marine propulsion unit, or both, either in place of the first prime mover or in addition thereto.

Abstract: A personal floatation assembly includes a housing that has a first end, a second end, a first lateral side, a second lateral side, a top wall and a bottom wall. The housing is comprised of a flexible and air impermeable material such that the housing can be inflated to support a body on water. A torso support is positioned on the top wall. The torso support is elongated and extends between the first lateral edge and the second lateral edge. The torso support is spaced between 2.0 feet and 3.0 feet from the first end and is spaced from the second end at least 2.0 feet. The torso support is comprised of a flexible and air impermeable material such that the torso support can be inflated.

Abstract: A surfboard with a forward curved fin that extends forwardly of the nose of the surfboard. The curved fin supports a platform for an action camera usually pointed at a board user. At least one adjustable strut between the platform and curved fin can provide a desired elevation or angle to the platform and camera for action filming of a user of the surfboard.

Abstract: A vehicle drive unit and land vehicle comprising the drive unit are disclosed. Each drive unit comprises a pair of longitudinally aligned and longitudinally spaced apart ground wheels. The land vehicle comprises a pair of drive units on opposite sides thereof. The drive units comprise an electric motor for powering the pair of wheels and a gear drive assembly comprising structure for disengaging the electric motor from the ground wheels. The drive units may be remotely controllable, may be water-tight and may be floatable. The vehicle comprising the drive unit may be amphibious.

Abstract: The present invention provides, with reference to FIG. 2, an amphibian operable in land and marine modes, the amphibian comprising a hull, at least one discontinuity (wheel bay) provided in the hull, and at least one retractable wheel or track assembly at least partially located in the at least one discontinuity (wheel bay). The hull is a planning hull, and the at least one discontinuity (wheel bay) is provided in the front half of the hull of the amphibian. The amphibian further comprises at least one conduit which opens, or is provided with an entry which opens, into or at the at least one discontinuity (wheel bay) and is configured for channeling, in use, fluid away from the at least one discontinuity (wheel bay).

Abstract: A boat has at least one portion (3, 4) of the freeboard in the region of the stem of the boat arranged movable from a closed position, in which it seals the space (6) inside the freeboard with respect to the exterior of the boat, and an open position, in which it provides an opening (21) between the exterior of the boat and space so as to enable to pick up objects from the water in which the boat floats through the opening. The freeboard portion is arranged to be displaceable along the floor (11) of the space for moving the freeboard portion from the closed to the open position and then gradually increase the width of the opening (21).

Abstract: Wingsail. The wingsail includes a substantially rigid airfoil section having a leading and a trailing edge and a flap is attached to the trailing edge through a torsion fitting having a torsional stiffness along the span of the rigid airfoil section selected to control flap deflection with respect to the rigid airfoil section under aerodynamic loading to control rolling moment of the wingsail.