An attachable watercraft chair. The attachable watercraft chair includes a chair formed by a back member and a seat member that are pivotally connected. The back member has a first end placed distally to the seat member and a second end placed proximally to the seat member. A first pair of brackets are connected to the back member. The first pair of brackets have suction cups mounted on them. Also, a second pair of brackets are connected to the back member. The second pair of brackets have a support bar that spans across the back member. The attachable watercraft chair can be attached and removed from a watercraft.

The side mounted motors are attached to the left side and the right side of the kayak. The invention further comprises a pair of unique clamps for attaching the pair of side mounted motors to the kayaks. The unique clamps are configured to adjust the side mounted motors both horizontally and vertically to regulate placement and depth of the side mounted motors. In a preferred embodiment, the clamp has inter-changeable wedges that conform to different profiles of a kayak to provide a more secure fit.

Example implementations include a system and method of using plastic from bodies of water and creating a floating platform by collecting plastic from a body of water, cleaning the collected plastic, melting and compacting the plastic, molding a plurality of hexagonal blocks from the compacted plastic, stacking the plurality of hexagonal blocks, wherein a system of springs and an energy storage device is provided between each of the plurality of hexagonal blocks, and coating the stacked blocks with a non-toxic material. Through the use of various onboard functionalities, energy may be generated to regulate temperature and provide electricity, oxygen may be supplied, and water may be purified.

The objective of the present invention is to provide an accommodation ladder fixing device, which more firmly and safely fixes, to an exterior wall of a ship, an accommodation ladder temporally provided so as to allow pilots to safely board and disembark the ship. That is, the present invention comprises: a housing (10), which has a fixing plate (13) formed at the rear end thereof to be mounted on the accommodation ladder (100), has a fixing box (11), of which the front side is opened, formed on the fixing plate (13), and has hinge shafts (15) formed at both sides of a through-hole (14) of the fixing box (11); an attachment/detachment means (20), which has a movable block (21) insertively provided so as to be movable forward and rearward to/from the fixing box (11), and a magnetic member (22) attached/detached to/from the exterior wall of a hull (200) and provided at the front end of the movable block (21); and an operating member (30) provided so as to pass through the fixing box (11) and the movable block (21) at the upper part of the housing (10), thereby moving the movable block (21) forward and rearward.

There is provided an assembleable boat made of fiber-reinforced plastic (FRP) including a bottom wall assembly; a left side wall assembly; a right side wall assembly; and a front wall assembly. the bottom wall assembly, the back wall assembly, the left side wall assembly, the right wall assembly, and the front wall assembly are mechanically connected to form the assembleable boat; and each of the bottom wall assembly, the left side wall assembly, the right wall assembly, and the front wall assembly is made of FRP.

A releasable restraint for an inflatable slide is disclosed, in accordance with various embodiments. The releasable restraint may comprise a first mating portion having a receptacle. The releasable restraint may comprise a second mating portion having a protrusion. The protrusion may be configured to fit within the receptacle. An adjustment fastener may be coupled to the receptacle and configured to adjust a coupling strength of the releasable restraint.

A platform for a semi-submersible floating type offshore structure according to an exemplary embodiment of the present invention includes a main body which is installed on the sea and has an arrangement structure in which a plurality of pontoons is combined to form a plurality of polygonal shapes; and a protrusion member connecting unit which extends from each corner of the main body and connects a protrusion member outwardly protruding from the main body to the main body.

There is provided an assembleable boat made of fiber-reinforced plastic (FRP) including a bottom wall assembly; a left side wall assembly; a right side wall assembly; and a front wall assembly. the bottom wall assembly, the back wall assembly, the left side wall assembly, the right wall assembly, and the front wall assembly are mechanically connected to form the assembleable boat; and each of the bottom wall assembly, the left side wall assembly, the right wall assembly, and the front wall assembly is made of FRP.

Apparatus and associated methods relate to using an additive (material deposition) process to incrementally form a closed-cell lattice structure formed as a unitary body in the shape of a marine hull cavity, the unit cells of the closed-cell lattice structure are substantially hollow. In an illustrative example, a method may include (a) forming a closed-cell lattice structure through additive manufacture, the hull cavity material may be bonded to an upper manufactured liner and a lower manufactured liner through lamination or mechanical connection. Unit cells of the closed-cell lattice structure may include hollow voids filled with gases. Providing the additive manufactured closed-cell lattice structure with a unitary body and hollow voids to trap gases may further advantageously promote the buoyancy and reduce the degeneration of a marine hull.

Systems and methods are provided for a magnetic coupling shade system for boats. The magnetic coupling shade system comprises a sheet of material that includes magnetic portions coupled with magnets disposed in locations of a boat. The locations of the boat include any of the hull, deck, superstructure, hardtop, or any other suitable surface of the boat. Magnets located on the hull are located within the interior of the hull. The sheet extends from the top to either or both of the port and starboard sides. The sheet can comprise a variety of materials, and may include a window portion for viewing through the sheet. In some embodiments, the window portion comprises an entirety of the sheet with the magnetic portions attached to opposite edges of the window portion. The sheet is configured to be detached from the magnets and either suspended overhead or rolled upward when not in use.