A storage-container includes a hollow compartment with a storage-cover sealing a watertight interior space. The storage-container is able to be coupled to a stern of a kayak to provide an auxiliary storage compartment for the kayak. The compartment is a unitary, rigid component having a right-fin and a left-fin which extend forwardly on either side of the kayak stern, and a peaked-terminus at the back end where the right-fin and the left-fin recede to. Between the right-fin and the left-fin at the front side adjacent to the stern of the kayak is a concavity to accommodate the stern. The interior compartment inhabits both the right-fin and the left-fin, being centered between. The storage-port opens into this interior compartment. A fastener aperture is vertically oriented near the concavity to enable a fastener to connect the container to the kayak stern.

A locking pin assembly for a cargo loading system includes a shaft, a first retention pin, a second retention pin, and a synchronizer. The shaft defines a first shaft groove and a second shaft groove. The first retention pin and the second retention pin are disposed within the shaft. The synchronizer is disposed about the shaft and defines a first synchronizer groove that crosses over the first shaft groove and a second synchronizer groove that crosses over the second shaft groove.

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 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.

A system includes a coil contacting base. The coil contacting base includes a radially curved outer surface with a radius of curvature less than or equal to a coil radius of curvature of an interior channel of a coil of spoolable pipe, and the coil contacting base includes a length greater than or equal to an axial dimension of the coil. The system also includes a side wall coupled to an inner surface of the coil contacting base. The side wall is configured to block circumferential movement of a coil restraint. The system also includes a passage disposed between the coil contacting base and the side wall. The coil restraint is configured to be disposed in the passage.

A system for restraining a vehicle includes a deck of a transport. The deck includes one or more grated panels. The system also includes a vehicle restraint assembly configured to secure a vehicle to the deck of the transport. The vehicle restraint assembly includes an anchor coupled to a first end of a strap. The anchor includes a first plurality of hooks configured to couple the anchor to the deck of the transport through one or more grate wires of the one or more grated panels. The vehicle restraint assembly further includes a ratchet coupled to a second end of the strap. The ratchet includes a second plurality of hooks configured to couple the ratchet to the deck of the transport through one or more grate wires of the one or more grated panels.

A method for ship ballasting includes receiving, at a carbon negative energy storage system, input comprising calcium oxide and water and reacting, within a reaction chamber of the carbon negative energy storage system, the calcium oxide and water to release energy and generate calcium hydroxide. The method includes directing, by the carbon negative energy storage system, the released energy to a requesting end user and providing, by the carbon negative energy storage system, the calcium hydroxide to a marine vessel ballasting system. The method includes releasing a mixture of the calcium hydroxide and ballast water from the marine vessel ballasting system into the ocean to sequester atmospheric COCO.sub.2.

A system includes a coil contacting base. The coil contacting base includes a radially curved outer surface with a radius of curvature less than or equal to a coil radius of curvature of an interior channel of a coil of spoolable pipe, and the coil contacting base includes a length greater than or equal to an axial dimension of the coil. The system also includes a side wall coupled to an inner surface of the coil contacting base. The side wall is configured to block circumferential movement of a coil restraint. The system also includes a passage disposed between the coil contacting base and the side wall. The coil restraint is configured to be disposed in the passage.

A bar gripping assembly is configured to join a bar to a marine accessory on a marine craft. The bar gripping assembly has a single piece housing having an upper housing portion and a lower housing portion. A marine accessory is formed as part of the upper housing portion. A first wall slot and a second wall slot are arranged through the lower housing portion. A hollow portion adjacent to a weakened wall on the lower housing portion that has a lower portion opening and an upper portion. A strap is arranged through the first wall slot, the second wall slot, and around the lower portion opening. The strap compresses the lower housing portion against the bar to join the marine accessory to the marine craft.

The present invention provides a watersports board rack for attaching to a support member (e.g., hanging down from an overhead support tower) of a boat. The rack may have a low profile, superior padding and an increased contact area compared to current rack systems, as well as at least one strap for securing the board against the padding and a coupler for attaching to the overhead support member. The rack may thus be operable to securely hold up to two watersports boards (e.g., two wakesurf boards) without the usual wear and tear (e.g., dents and scrapes) that occurs from regular contact with the tines of current rack systems. The rack may thus increase the boat's capacity to securely store watersports boards while the boat is in motion, and due to the low profile, the rack will not substantially reduce headroom or require removal from a folding tower before folding the tower down for transporting and storing the boat.

A system includes a coil contacting base. The coil contacting base includes a radially curved outer surface with a radius of curvature less than or equal to a coil radius of curvature of an interior channel of a coil of spoolable pipe, and the coil contacting base includes a length greater than or equal to an axial dimension of the coil. The system also includes a side wall coupled to an inner surface of the coil contacting base. The side wall is configured to block circumferential movement of a coil restraint. The system also includes a passage disposed between the coil contacting base and the side wall. The coil restraint is configured to be disposed in the passage.