The invention relates to an inflatable watercraft which consists of at least two inflatable parts that are joined together by means of holding strips or the like under preload. The invention also relates to a method for producing said inflatable watercraft and a gluing table that can be used in the production of the watercraft.

The invention relates to an inflatable watercraft which consists of at least two inflatable parts that are joined together by means of holding strips or the like under preload. The invention also relates to a method for producing said inflatable watercraft and a gluing table that can be used in the production of the watercraft.

The invention relates to an inflatable watercraft which consists of at least two inflatable parts that are joined together by means of holding strips or the like under preload. The invention also relates to a method for producing said inflatable watercraft and a gluing table that can be used in the production of the watercraft.

A relatively thick, rubberized adhesive tape is applied to an article to repair, patch, bond, seal, or waterproof the article, to join two or more articles, and/or to modify the appearance and/or physical properties of the article, such as by thermal insulation, shock resistance, vibration resistance, electrical insulation, and the like.

A marine deck member with enhanced surface traction and the process for forming the same. The marine deck member comprises a sandwich-type composite panel made by a compression molding process. In such a process, the panel is made by subjecting a heated stack of layers of material to cold-pressing in a mold. The cellular core has a 2-D array of cells, each of the cells having an axis substantially perpendicular to the outer surfaces, and extending in the space between the layers or skins, with end faces open to the respective layers or skins. The surface traction of this type of composite panel can be enhanced for marine deck applications by controlled debossing, or embossing, of the first skin while it cools in the compression mold. The debossing effect can be effected by applying pressurized gas, e.g., pressurized air, onto the outer surface of the first skin while in the compression mold. The embossing can be effected by applying vacuum pressure on the outer surface of the first skin while in the compression mold.

An insulation spacer for marine vessel insulation. In one embodiment, the insulation spacer comprises a circularly-shaped top face comprising a locking means; a side wall extending from a perimeter of the circularly-shaped top face at a first angle measuring between about 90 and about 180 relative to an internal surface of the top face, thereby forming a bottom opening; a flange portion extending from a perimeter of the bottom opening at a second angle measuring equal to the first angle relative to an external surface of the side wall, whereby the flange portion is parallelly oriented to the circularly-shaped top face, wherein the side wall provides at least a -inch space between the circularly-shaped top face and the flange portion.

An insulation spacer for marine vessel insulation. In one embodiment, the insulation spacer comprises a circularly-shaped top face comprising a locking means; a side wall extending from a perimeter of the circularly-shaped top face at a first angle measuring between about 90 and about 180 relative to an internal surface of the top face, thereby forming a bottom opening; a flange portion extending from a perimeter of the bottom opening at a second angle measuring equal to the first angle relative to an external surface of the side wall, whereby the flange portion is parallelly oriented to the circularly-shaped top face, wherein the side wall provides at least a -inch space between the circularly-shaped top face and the flange portion.

An improved kayak has a hull of thermoformed ABS plastic having a bow and a seat having a void between the bow and the seat, a top of the hull being a deck with a foam PVC block glued to a bottom face of the deck. A rotomolded polyethylene plastic insert is located in the void and joined to the hull by fasteners that pass through the insert and the deck of the hull and engage the foam PVC block within the hull, with caulking between the hull and the insert. A propulsion device is removably mounted in the rotomolded plastic insert that allows a user of the kayak to propel the kayak.

A deep-drawn, marine hull having a sandwich structure and watercraft utilizing same are provided. The hull includes an outer skin having a waterproof outer surface, an inner skin having a compartment-defining outer surface and a shock absorbing, cellular core positioned between the skins. The skins are bonded to the core by press molding. The cellular core has a 2-D array of cells, each of the cells having an axis substantially perpendicular to the outer surfaces. Thickness of side walls of the hull is substantially uniform to maximize stiffness of the hull. The cells absorb energy of an impact at the outer surface of the outer skin by deformably crushing. Air trapped within cells which are not completely crushed or punctured by the impact provide the hull with buoyancy to allow the hull to float at the surface of a body of water.

A boat hull or other marine structure is made by shaping a plastic foam core and covering it with a plastic outer skin glued in place by adhesive, mechanically fastened, or applied in liquid form. Minimal sawcuts to the foam core ease manufacture. Methods for anchoring fittings, masts, pipes and shade canopies are presented. No-sew sails for the boat have corners made of plastic sheet attached using both adhesive and mechanical fastening. Lateral resistance of the hull is provided by telescoping leeboards. A suite of these boats share the same modular masts and sails. Such boat hulls offer light weight, ease of transport, and unswampable buoyancy.