Disclosed herein is a foldable canoe. More particularly, the foldable canoe is configured such that it is constructed by folding a single synthetic resin sheet along a folding line without using a separate structural frame, and after the use of the canoe, the synthetic resin sheet can be completely folded along the folding line to form a compact shape, thus reducing the volume and length of the canoe, thereby facilitating transportation and storage of the canoe.

An alternating Open Chamber Cavity for employing a very useful safe and controllable new lifting plus lubricating hydrodynamic force for effectively improving marine transportation in a seaway, I named SAFELY CONTROLLED, AUTOMATED WATER DISSECTED LUBRICATION AND LIFT FORCE, has been discovered and innovated for use by myself; and I have also invented the automated mechanism I named “FLEXIBLE POWER-FINS”, for controlling the safe exploitation of this beneficial natural phenomenon, as well as innovated a way to significantly improve the turning capabilities of a watercraft in motion.

An alternating Open Chamber Cavity for employing a very useful safe and controllable new lifting plus lubricating hydrodynamic force for effectively improving marine transportation in a seaway, I named SAFELY CONTROLLED, AUTOMATED WATER DISSECTED LUBRICATION AND LIFT FORCE, has been discovered and innovated for use by myself; and I have also invented the automated mechanism I named “FLEXIBLE POWER-FINS”, for controlling the safe exploitation of this beneficial natural phenomenon, as well as innovated a way to significantly improve the turning capabilities of a watercraft in motion.

System of unmanned underwater vehicles with multiple variable-geometry internally pressurized flexible hulls (that enable the underwater vehicle to submerge/emerge and change submersion depth by varying hull's buoyancy and not the vehicle weight) and possibly at least one pressure hull housing e.g. accumulators and electronic steering system. Each flexible hull is composed of a number of flexible hull segments modules.

System of unmanned underwater vehicles with multiple variable-geometry internally pressurized flexible hulls (that enable the underwater vehicle to submerge/emerge and change submersion depth by varying hull's buoyancy and not the vehicle weight) and possibly at least one pressure hull housing e.g. accumulators and electronic steering system. Each flexible hull is composed of a number of flexible hull segments modules.

This invention is directed to a column floater with extended cylinder and a ring buoy-group, which comprises an upright buoy at a water surface, an extended cylinder, a positioning system and a topsides. The top of the upright buoy is above the water surface and a moonpool is either set or not in the center of the upright buoy through the top to the bottom. The extended cylinder, connecting to the bottom of the upright buoy and extending downwards, includes two types of fixed and sliding to form a column floater with fixed extended cylinder and a column floater with sliding extended cylinder respectively. The positioning system is one or two combined of mooring system and DP system. The column floater with extended cylinder is a new type floating platform with multi-purpose, combining advantages of the spar platform and the current cylindrical FPSO, high performance, safety and reliability.

Disclosed herein is a multi-purpose storage container having various configurations. For example, multi-purpose storage container may be transformed to a cargo box, portable storage unit, tent or other shelter, sled, boat, and the like by configuring one or more components. The multi-purpose storage container may be mounted to a vehicle. Once mounted, the interior of the multi-purpose storage container may be accessed from inside the vehicle through a moveable section of the platform that aligns with a sunroof of the vehicle.

This invention is directed to a column floater with extended cylinder and a ring buoy-group, which comprises an upright buoy at a water surface, an extended cylinder, a positioning system and a topsides. The top of the upright buoy is above the water surface and a moonpool is either set or not in the center of the upright buoy through the top to the bottom. The extended cylinder, connecting to the bottom of the upright buoy and extending downwards, includes two types of fixed and sliding to form a column floater with fixed extended cylinder and a column floater with sliding extended cylinder respectively. The positioning system is one or two combined of mooring system and DP system. The column floater with extended cylinder is a new type floating platform with multi-purpose, combining advantages of the spar platform and the current cylindrical FPSO, high performance, safety and reliability.

A collapsible watercraft comprised of a single high-strength foldable panel that is creased in a predetermined pattern to form living hinges, the panel being foldable to transform from self-defined compact knocked down package, into a rigid three dimensional kayak form. Other removable rigid structural members, bulkheads, seat assembly and floorboards help maintain the shape and integrity of the shell.

A watertight foldable system comprises a watertight panel in which folds have been made such that the panel may be folded from a flat state into an open-top watercraft such as for example a canoe. The panel comprises a set of folds such that the watercraft, after it has been folded into watercraft, has a bottom having a flat profile in longitudinal direction or having a convex profile relative to the watercraft.