An accessory system for a pontoon boat includes a support comprising longitudinal members and at least one support crosspiece connected between the longitudinal members, where the support can be attached to a structural component of a pontoon boat and move between a stowed position and a deployed position. An accessory component includes one or more hangers with a hook constructed to engage the support. A support portion is connected to the accessory component and extends transversely away from the one or more hangers. In use, the support can be deployed along a side of a pontoon with the accessory component removably attached to the support. The accessory component can be used to support a platform, a grill, a cooler or other accessory alongside the pontoon boat.

An open water transport system for payloads and a method for transporting payloads. The system includes two sponsons substantially parallel to the other. The sponsons are spaced apart from each other and extending in a forward direction. A deck plate module is detachably mounted on top of each sponson. A superstructure may be detachably mounted to the deck plate modules. The superstructure may bear a weight of one or more payloads. The carriage assembly couples to the payload(s). The carriage assembly has an adjustment mechanism that permits an operator to redistribute the weight of a payload. The open water transport system is towed by another vehicle.

The present invention relates to a semi-submersible offshore structure. More particularly, the invention relates to a low motion semi-submersible offshore structure that has improved stability in deep water. The low motion semi-submersible experiences relatively lesser heave, pitch and wave motions compared to conventional semi-submersibles when the semi-submersible is operating in harsh offshore environments.

The present invention comprises of a novel collapsible, pontoon boat design generally consisting of a side rail system, a frame, and pontoons. The parts are lightweight, durable, and welded together to provide maximum support and usability. All parts are snugly fit together and locked into place with a unique snap button system. The invention offers a unique way to secure into place materials that are not normally used on collapsible designs and yet offer the greatest attributes of strength and safety.

A catamaran lifting apparatus is disclosed for lifting objects in a marine environment. The apparatus includes first and second vessels that are spaced apart during use. A first frame spans between the vessels. A second frame spans between the vessels. The frames are spaced apart and connected to the vessels in a configuration that spaces the vessels apart. The first frame connects to the first vessel with a universal joint and to the second vessel with a hinged connection. The second frame connects to the second vessel with a universal joint and to the first vessel with a hinged or pinned connection. Each of the frames provides a space under the frame and in between the barges that enables a package to be lifted and/or a marine vessel to be positioned in between the barges and under the frames. In this fashion, an object that has been salvaged from the seabed can be placed upon the marine vessel that is positioned in between the barges and under the frames.

An open water transport system for payloads and a method for transporting payloads. The system includes two sponsons substantially parallel to the other. The sponsons are spaced apart from each other and extending in a forward direction. A deck plate module is detachably mounted on top of each sponson. A superstructure may be detachably mounted to the deck plate modules. The superstructure may bear a weight of one or more payloads. The carriage assembly couples to the payload(s). The carriage assembly has an adjustment mechanism that permits an operator to redistribute the weight of a payload. The open water transport system is towed by another vehicle.

A multihull multiplatform floating vessel with a plurality of longitudinal hulls, a plurality of pin connectors; each pin connector providing one axis motion, a plurality of joints, each joint providing two axis motion, wherein the first joint is mounted on one hull the second joint is mounted on a second hull and wherein one group of pin connectors is mounted on one hull and a second group of pin connectors is mounted on the second hull. A first moveable planar platform is connected to the hulls and a second moveable planar platform is connected to the hulls by the pin connectors and joints, the platforms spaced apart from each other forming a platform void between pairs of platforms, and a hull void between pairs of hulls increasing safety onboard and decreasing motion of the moveable planar platforms as mounted to the longitudinal hulls.

A catamaran lifting apparatus is disclosed for lifting objects in a marine environment. The apparatus includes first and second vessels that are spaced apart during use. A first frame spans between the vessels. A second frame spans between the vessels. The frames arc spaced apart and connected to the vessels in a configuration that spaces the vessels apart. The first frame connects to the first vessel with a universal joint and to the second vessel with a hinged connection. The second frame connects to the second vessel with a universal joint and to the first vessel with a hinged or pinned connection. Each of the frames extends upwardly in an inverted u-shape, providing a space under the frame and in between the barges that enables a marine vessel to he positioned in between the barges and under the frames.

A steering device notably for a recreational catamaran of the type propelled by at least one sail, the steering position facing the direction of travel, comprising two floats provided with two port and starboard rudder blades, rotatably mounted about a substantially vertical axis. The steering device includes directional members of a port and starboard control horn at the rudder blade head, an arrangement for moving cables with a pivoting steering lever with a foot and two outer and inner control cables, as a closed circuit.

A catamaran oil production apparatus is disclosed for producing oil in a marine environment. The apparatus includes first and second vessels that are spaced apart during use. A first frame spans between the vessels. A second frame spans between the vessels. The frames are spaced apart and connected to the vessels in a configuration that spaces the vessels apart. The first frame connects to the first vessel with a universal joint and to the second vessel with a hinged connection. The second frame connects to the second vessel with a universal joint and to the first vessel with a hinged or pinned connection. At least one of the frames supports an oil production platform. One or more risers or riser pipes extends from the seabed (e.g., at a wellhead) to the production platform (or platforms). In one embodiment, the production apparatus includes crew quarters.