Abstract: An installation for storing and transporting a cryogenic fluid on a ship includes: a sealed and thermally insulating tank, having a ceiling wall including, from the outside to the inside, a primary thermally insulating barrier and a primary sealing membrane intended to be in contact with the cryogenic fluid; and a sealed line penetrating through the ceiling wall of the tank, the line including a bottom portion of which a first end is situated inside the ceiling wall of the tank and a second end is situated outside the ceiling wall of the tank in a thicknesswise direction of the ceiling wall, and a top portion fixed to the second end of the bottom portion. The bottom portion includes an alloy with low thermal expansion coefficient. The primary sealing membrane is tightly fixed to the bottom portion of the line around the line.

Abstract: A system for enhancing a wake profile produced by a pontoon boat is provided. The system includes a pair of ramps attached to the bottom of a platform supported by at least two pontoons. The ramps may be oriented downward with a rear end of the ramp disposed in the water between the pontoons. The water flowing between the pontoons is displaced downward by the ramps, thereby increasing water displacement and directing the water to produce an improved wake profile. Downforce may be applied to the boat by one or more wake plates, with a faceted portion of the wake plate facing forward and upward, such that when water impacts the faceted portion a downforce is provided. The wake plates may be attached to the ramps or may be separate from the ramps.

Abstract: A propulsion control system on a marine vessel includes at least one propulsion device configured to propel the marine vessel and at least one proximity sensor system configured to generate proximity measurements describing a proximity of an object with respect to the marine vessel. The system further includes a controller configured to receive proximity measurements, access a preset buffer distance, and calculate a velocity limit in a direction of the object for the marine vessel based on the proximity measurements and the preset buffer distance so as to progressively decrease the velocity limit as the marine vessel approaches the preset buffer distance from the object.

Abstract: A life raft may comprise a border tube and a canopy support tube coupled to an outer portion of the border tube. A first orifice defined by the canopy support tube is aligned with a second orifice defined by the border tube. A diameter of the first orifice is less than a diameter of the second orifice.

Abstract: A lateral arm actuator for an extendable awning includes a gas spring with a cylinder and a rod that is displaceable relative to the cylinder, a fitting disposed at a distal end of the rod, and an awning knuckle including a first connector coupled to a cylinder end of the gas spring, a second connector, and a pivot coupled between the first and second connectors. The second connector is pivotable relative to the first connector, and the second connector includes a hook. A cable formed into a continuous loop is positioned over the fitting, along the gas spring, and across the awning knuckle engaging the hook. An extendable awning assembly also incorporates the lateral arm actuator to extend and retract the awning via a motorized roller.

Abstract: A body towed by a cable behind a ship and commonly referred to as a towfish, the towfish includes a structure configured to move through the water in a horizontal main direction and at least one appendage configured to generate on the towfish a downwardly directed hydrodynamic lift (P) when the towfish is moving through the water under the effect of the towing, the appendage being orientable so as to modify its lift. The towfish comprises a bracket capable of rotational movement with respect the structure about a horizontal axis perpendicular to the horizontal main direction, the cable being attached to the bracket. An orientation (?) of the appendage, allowing it to alter the lift (P), is dependent on an angle (?) formed between the bracket and the structure about the horizontal axis.

Abstract: The specification discloses a watercraft drain plug system that includes two or more drain plugs, an actuator, and a cable assembly interconnecting the drain plugs and the actuator. The actuator may be operated to move the drain plugs between open and closed positions. The actuator includes a locking mechanism for securing the actuator in the closed position to prevent inadvertent opening of the drain plugs.

Abstract: A stand-alone modular removable rudder system for watercraft having a rudder comprising a steering handle coupled to a quick release mechanism adapted to releasably secure said steering handle to said watercraft in proximity to the operator, said system further comprising, a rudder mount adapted to be coupled to the rear of the watercraft by a quick release mechanism adapted to releasably secure said rudder mount to said watercraft, said rudder being carried by a rudder support pivotal about said rudder mount and cables operatively connecting said steering handle to said rudder mount whereby the steering handle can be operated to steer the rudder.

Abstract: The present disclosure provides an apparatus for transferring a liquid cargo. The apparatus for transferring a liquid cargo according to an embodiment of the inventive concept may include a liquid cargo transfer line connected to a liquid cargo storage tank, a drum connected to the liquid cargo transfer line and providing a space for storing a liquid cargo, and a pressing unit for pressing the liquid cargo storage tank so that the liquid cargo stored in the liquid cargo storage tank is supplied to the drum through the liquid cargo transfer line.

Abstract: A catch handling system includes a catch collection system. The catch collection system includes one catch handling depot; one or more trawls; and a catch transport system, where the catch transport system includes a transport system, and where the transport system includes a transport node. The transport node includes a releasable connection to a catch handling fleet carrier drone and to one or more units of a catch handling fleet.

Abstract: A boat comprises a hull, a primary steering mechanism carried by the hull, a control station located on the hull, a helm located at the control station, and a thruster system carried by the hull. The primary steering mechanism, such as a rudder, is operable via the helm with a helm input being derived from operation of the primary steering mechanism thereby. The thruster system includes at least one thruster mounted to the hull, distinct from the primary steering mechanism, and a controller. The controller receives the helm input and is configured with program instructions to operate the at least one thruster responsive to the helm input to supplement a corresponding movement of the hull. The controller can also automatically operate the thruster responsive to direction, speed and ballast inputs.

Abstract: A modular crew cabin system includes a plurality of crew cabin modules interchangeably installable within a plurality of spaces within one or more decks of a ship. A crew cabin module can include four walls, a ceiling, a floor, an upper bunk, and a lower bunk. The upper bunk and the lower bunk are disposed adjacent to two different walls in an L-shaped configuration. The ceiling includes a lower portion and a pop-up portion disposed above the upper bunk such that a 6-foot-tall occupant can sit up comfortably within either the upper bunk or the lower bunk. The pop-up portion of the ceiling may extend higher than an industry-standard ceiling height while permitting utility conduits to be routed over the lower portion of the ceiling. Storage space within the crew cabin module may be greater than one cubic meter.

Abstract: A mooring system comprises a pair of first mooring elements configured at first ends for connection to a floating vessel, and a pair of second mooring elements configured at first ends for connection to a seabed below a water surface. A restrictor member is connected between said pair of first mooring elements' second ends. The restrictor member has a length dimension that is less than or equal to the width of the vessel to which the mooring system is connected.

Abstract: The invention relates to devices, systems, and methods that involve automatically lifting a boat cover above an interior of the boat.

Abstract: A method of controlling propulsion of a marine vessel includes receiving proximity measurements from one or more proximity sensors on the marine vessel and limiting user input authority over propulsion output in a direction of an object by at least one propulsion device based on the proximity measurement so as to maintain the marine vessel at least a buffer distance from the object. The method further includes suspending maintenance of the buffer distance from the object in response to a user-generated instruction. Then, when user control input is received via a user input device to move the marine vessel in the direction of the object, the at least one propulsion device is controlled based on the user control input such that the marine vessel approaches and impacts the object.

Abstract: A composite floating dock system comprised of one or more dock float components, with each dock float component having a dock frame and one or more floats attached thereto, with each of the dock float components constructed of fiberglass reinforced plastic into a single monolithic unit, and being ballasted with encased concrete.

Abstract: A blade for a kayak paddle with a shaft can include a body extending from the shaft to a blade tip. The body has a cross-sectional profile separated at a chord line into a top section with an upper surface and a bottom section with a lower surface. The paddle can also include a shoulder section smoothly transitioning between the shaft and the blade body. The top section of the cross-sectional profile can be thicker than the bottom section and the upper surface exhibits more curvature than the lower surface, thereby increasing fluid flow speed over the upper surface to generate a lift force when the body is moved through water.

Abstract: A pump intake adapter for pumping shallow levels of fluid from a surface to be drained, the pump intake adapter including a connection on the pump intake adapter to convey the fluid away from the pump intake adapter; an intake surface on the pump intake adapter; and a portion of the intake surface of the pump intake adapter that in operation does not contact the surface to be drained, and creates an open conduit between the pump intake adapter and the surface to be drained through which fluid may flow, the open conduit being in fluid communication with the connection on the pump intake adapter. Other systems and methods are provided.

Abstract: A rigid weather guard for a center console of a power boat includes a rapidly deployable protective shield. The shield has a top edge, a bottom edge, a first side edge that is pivotably connectable with a portion of the boat, and a second side edge that is configured for connection with a gunwale of the power boat. The pivotable connection of the first side edge provides movement between an open and closed position. When in the open position, the second side edge is connected with the gunwale securing the shield in place to block adverse weather. Preferably, the protective shield has a transparent portion.

Abstract: A subsurface diver transport vehicle includes a vehicle body and at least one propulsion device. The vehicle body incorporates a number of individual mission modules mechanically assembled together to define a substantially continuous hull and deck of the vehicle. The mission modules include at least one battery module adapted for supplying electrical current to electrical subsystems of the vehicle. The propulsion device is attached to the vehicle body and capable of propelling the vehicle through a body of water.