An embodiment includes an open/non-closed hull collar assembly that is shaped to increase encapsulated volume of a hull. The hull collar assembly may include a hull collar structure and a foam module. The hull collar structure may include a gunwale, an outboard boundary, and an inboard boundary. The outboard boundary extends in an outward lateral direction from a lower hull portion and extends in a longitudinal direction from the lower hull portion such that at least a portion of the hull collar structure is at least partially included in a freeboard portion of a boat hull. The inboard boundary extends from the gunwale a portion of a distance to a deck such that the hull collar structure is at least partially open or non-closed to an inner hull volume. The foam module is comprised of a non-expansive, closed cell foam. The foam module is shaped for disposition within the hull collar structure.

The present invention relates to a lightweight composite propeller for an outboard motor, wherein the propeller has a separate hub and blades which are easily repaired when damaged, improves fuel efficiency because a lightweight composite material is used therefor, and is easily manufactured in large quantities.

A portable marine anchoring device maximizes holding capacity while anchored into the ground. The device is fabricated from lightweight aluminum.

A portable marine anchoring device maximizes holding capacity while anchored into the ground. The device is fabricated from lightweight aluminum.

An aluminum material for producing light-weight components includes aluminum (Al), scandium (Sc), zirconium (Zr) and ytterbium (Yb), where a weight ratio of scandium (Sc) to zirconium (Zr) to ytterbium (Yb) [Sc/Zr/Yb] is in a range from 10/5/2.5 to 10/2.5/1.25.

The invention relates to a marine vessel cryogenic barrier which is formed of a plurality of individual panels, each panel being arranged to align with an adjacent panel on an inner surface of a hold space of a marine vessel and comprising a single coupling means at the centre of the panel and an impervious layer on a surface of the barrier facing the hold space.

A grip pack for providing a slip-resistant, water-resistant, and antibacterial surface to a piece of sporting equipment including at least three substrates printed with images. The images are printed with ultraviolet curable ink and the substrates are non-silicone. Each substrate includes a top printable layer, a middle adhesive layer, and a bottom removable layer. The top printable layer is printed with an image. The bottom removable layer is removable from each substrate printed with an image to expose the middle adhesive layer. The middle adhesive layer is configured to adhere the top printable layer to a surface of the piece of sporting equipment. Each substrate printed with an image and each image printed with ultraviolet curable ink is smoothed flat to conform to the shape of the piece of sporting equipment and provide a smooth protective layer with the slip-resistant, water-resistant, and antibacterial surface.

The invention relates to a marine vessel cryogenic barrier which is formed of a plurality of individual panels, each panel being arranged to align with an adjacent panel on an inner surface of a hold space of a marine vessel and comprising a single coupling means at the centre of the panel and an impervious layer on a surface of the barrier facing the hold space.

An approach for assembling a maritime vehicle includes forming a keel panel from a single sheet of metal, forming a first side panel from a single sheet of metal, forming a second side panel from a single sheet of metal, and forming a lip member. The first side panel and the second side panel are temporarily coupled with the lip member. The keel panel is secured with the first side panel and the second side panel using a cold joining process.

A watercraft includes a deck, a pontoon assembly supporting the deck and an electric propulsion system. The pontoon assembly includes first and second pontoons connected to the deck, and an intermediate member. The first pontoon has a first metallic portion. The second pontoon is laterally spaced from the first pontoon. The intermediate member is connected to and extends laterally between the first and second pontoons. The electric propulsion system includes a battery supported by at least one of the pontoon assembly or the deck, an electric motor electrically connected to and powered by the battery and a propulsion unit operatively connected to the electric motor. The intermediate member has a cooling system including a heat exchanger in thermal contact with the first metallic portion, and a cooling path in thermal contact with the heat exchanger, and at least one of the battery or the electric motor.