A method includes wrapping one or more pieces of fabric around at least one piece of shape memory material. The method also includes attaching outer edges of the one or more pieces of fabric to other portions of the one or more pieces of fabric. The method further includes depositing liquid-impervious material onto the one or more pieces of fabric to form free-standing flexible walls and a floor of a containment structure. The floor is formed seamlessly with the walls. The wrapping could include attaching a bottom of the at least one piece of shape memory material to the one or more pieces of fabric at locations spaced apart from the outer edges of the one or more pieces of fabric. The wrapping could also include attaching sides of the at least one piece of shape memory material to the one or more pieces of fabric.

A dual-purpose tank container is provided, designed for transporting unrefined or refined fluid within the same internal space, eliminating unproductive deadheading. The tank container includes an inner tank in a frame, and outer insulation shell, the tank being equipped with at least one diaphragm so that a fluid, for example crude oil or diesel fuel, can occupy inner space without risk of contamination from a residual fluid. The high viscosity unrefined fluid can be almost completely drained using fluid draining channels present on the diaphragm surface, increasing transportation economy and eliminating any residual fluid pockets. At least one inlet present on the upper tank body supplies a solvent vapor/fluid to condition the space between the diaphragm and the tank wall, thereby preventing sticking of the diaphragm to the tank inner surface.

A dual-purpose tank container is provided, designed for transporting unrefined or refined fluid within the same internal space, eliminating unproductive deadheading. The tank container includes an inner tank in a frame, and outer insulation shell, the tank being equipped with at least one diaphragm so that a fluid, for example crude oil or diesel fuel, can occupy inner space without risk of contamination from a residual fluid. The high viscosity unrefined fluid can be almost completely drained using fluid draining channels present on the diaphragm surface, increasing transportation economy and eliminating any residual fluid pockets. At least one inlet present on the upper tank body supplies a solvent vapor/fluid to condition the space between the diaphragm and the tank wall, thereby preventing sticking of the diaphragm to the tank inner surface.

System for preventing the leakage of liquid from an outdoor work-site around the perimeter of the work-site includes a load-supporting surface having at least two adjacent mats and a plurality of berm members configured to be disposed around the perimeter of the load-supporting surface.

System for preventing the leakage of liquid from an outdoor work-site around the perimeter of the work-site includes a load-supporting surface having at least two adjacent mats and a plurality of berm members configured to be disposed around the perimeter of the load-supporting surface.

A cargo rack for transferring loads between a marine vessel and an offshore marine platform (for example, oil and gas well drilling or production platform) provides a frame having a front, a rear, and upper and lower end portions. The lower end of the frame has a perimeter beam base, a raised floor and a pair of open-ended parallel fork tine tubes or sockets that communicate with the perimeter beam at the front and rear of the frame, preferably being structurally connected (e.g., welded) thereto. Openings in the perimeter beam base align with the forklift tine tubes or sockets. The frame includes a plurality of fixed side walls extending upwardly from the perimeter beam that include at least left and right side walls. A plurality of gates are movably mounted on the frame including a gate at least at the front and at least at the rear of the frame, each gate being movable between open and closed positions, the gates enabling a forklift to place loads on the floor by accessing either the front of the frame or the rear of the frame. Each gate can be pivotally attached to a fixed side wall. The frame has vertically extending positioning beams or lugs that segment the raised floor into a plurality of load-holding positions. Each load holding position has a plurality of positioning beams or lugs that laterally hold a load module (e.g., palletized load) in position once a load is placed on the raised floor.

A cargo rack for transferring loads between a marine vessel and an offshore marine platform (for example, oil and gas well drilling or production platform) provides a frame having a front, a rear, and upper and lower end portions. The lower end of the frame has a perimeter beam base, a raised floor and a pair of open-ended parallel fork tine tubes or sockets that communicate with the perimeter beam at the front and rear of the frame, preferably being structurally connected (e.g., welded) thereto. Openings in the perimeter beam base align with the forklift tine tubes or sockets. The frame includes a plurality of fixed side walls extending upwardly from the perimeter beam that include at least left and right side walls. A plurality of gates are movably mounted on the frame including a gate at least at the front and at least at the rear of the frame, each gate being movable between open and closed positions, the gates enabling a forklift to place loads on the floor by accessing either the front of the frame or the rear of the frame. Each gate can be pivotally attached to a fixed side wall. The frame has vertically extending positioning beams or lugs that segment the raised floor into a plurality of load-holding positions. Each load holding position has a plurality of positioning beams or lugs that laterally hold a load module (e.g., palletized load) in position once a load is placed on the raised floor.

Described is a containment device for holding a container that defines a container interior volume. The containment device can include a base portion enclosing a base portion interior volume, the base portion including: a plurality of base walls, a trough extending from at least one of the base walls, and a substantially horizontal support surface adapted to support the container above the base portion interior volume. The base portion interior volume can be equal to or greater than the container interior volume. An enclosure can extend above the base portion, the enclosure including a plurality of enclosure walls adapted to surround the container. The enclosure walls can define an opening above the trough, the opening adapted for insertion of the container into the enclosure.

Described is a containment device for holding a container that defines a container interior volume. The containment device can include a base portion enclosing a base portion interior volume, the base portion including: a plurality of base walls, a trough extending from at least one of the base walls, and a substantially horizontal support surface adapted to support the container above the base portion interior volume. The base portion interior volume can be equal to or greater than the container interior volume. An enclosure can extend above the base portion, the enclosure including a plurality of enclosure walls adapted to surround the container. The enclosure walls can define an opening above the trough, the opening adapted for insertion of the container into the enclosure.

A method for the construction of an improved tank base. A tank base is constructed for protection against accidental spills and/or leaks associated with a tank battery. The improved tank base comprises at least one part of a suitable substrate, which allows for the adhesion of an elastomer such as polyurea. Polyurea is preferably applied using a spray device which yields an average coverage of about 50-80 mils, and most preferably 60 mils. If more than one substrate is used, one or more substrates can be bound together with a fastening system. Once pressure is applied in the form of weight, the fastening system can be removed, resulting in an improved tank base having at least one seam and impervious to the fluid of the tank battery.