Systems and methods described herein include an inflatable floating water attraction system for generating a wave. Exemplary embodiments also include a power and nozzle module for use with a water attraction system.

The present invention relates to an extendable container for fluids with variable containment volume and dimensions, which comprises one or more elements independent and capable of relative movement among themselves.

A water pad assembly adapted to floatingly support a human in open water, including: a water pad member and a plurality of grommets and/or cup holders.

This invention relates to recreational flotation devices, and particularly to floating mattresses or lounges, and to a method for manufacturing same.

Embodiments of the present apparatus and method feature a permanently fixed canted keel. The apparatus and method feature tacking maneuvers which shift the sail element and reverse the direction of the hull form.

Disclosed in the present invention is a small leisure boat. The leisure boat according to the present invention comprises: a container-shaped boat on which people board; seats arranged along the inner wall of the boat body; three or more connection rods of which one end is coupled to the boat body and which are arranged symmetrically with the boat body at the center; and floating bodies respectively connected to the other end of each of the connection rods. According to the present invention, riders can converse or play a game while facing each other by arranging the table inside the boat body and the seats around the table, thereby increasing convenience and entertainment aspects of leisure activities. Also, the stability of the leisure boat is significantly increased by the floating bodies arranged symmetrically around the boat body, and the boat body is not easily rocked due to movement of users or waves due to the positioning of the boat body at the center of the three floating bodies, thereby enabling enjoyment of refreshing and safe leisure activities.

A submarine structure provides a submarine in which the interior thereof is formed with an accommodation space and an electricity storing chamber connected to the accommodation space and having a battery and a power set having a propeller, and includes: at least one pipe, having the interior installed with at least one cable; at least one floating member, connected to another end of the at least one pipe; at least one energy supplier, disposed and in the floating member or the accommodation space and located at a relatively higher location inside the floating member or the accommodation space; and at least one control board, installed in the accommodation space of the submarine or the floating member, wherein the control board is connected to the energy supplier through the cable of the at least one pipe for providing power and maintaining communication and control.

An apparatus and methods according to the present invention provides a human powered catamaran-styled watercraft and methods of configuring and operating the watercraft. The watercraft generally comprises at least one hull in communication with a folding collapsible frame, wherein in the frame comprises a center rack pivotally joining hulls of hull sets to provide for common pivoting of the hulls during articulation of the watercraft, thereby the hulls and frame are in further communication through a at least one pivot pad which provides for slidable pivoting of the hulls during articulation of the watercraft. A method of folding and reversibly extending the watercraft to provide for optimized storage is provided. A method of operation of the watercraft to provide for articulation of the watercraft is provided.

A marine vessel includes a hull, a jet pump including an impeller, a plurality of motors, and a transmission to transmit outputs of the plurality of motors to the impeller of the jet pump.

The invention relates to a watercraft (10) having a hull (4) and at least one float (5), which is connected to the hull (4) via at least one kinematic connection (6), wherein the kinematic connection (6) comprises a first leg (1), which is linked at one end on the hull (4) and at the other end on the float (5) and is variable in its length by a first actuator (11), characterized in that the kinematic connection (6) comprises a second leg (2), which is linked at one end on the hull (4) and at the other end on a leg (1, 3) extending between hull (4) and float (5), preferably on the first leg (1) and is variable in its length by a second actuator (12), and/or a third leg (3), which is linked at one end on the first leg (1) or on the hull (4) and at the other end on the float (5) and is variable in its length by a third actuator (13), wherein the linkage point of the first leg (1) on the float (5) is spaced apart from the linkage point of the third leg (3) on the float (5).