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 rapid deployment containment tank includes an inflatable container and a self-contained compressed gas source. The container defines a liquid chamber and an open top through which a liquid passes into the liquid chamber. The container is shiftable between a deflated configuration and an inflated configuration. The container includes a flexible base wall and a flexible sidewall cooperating to define the liquid chamber. The sidewall projects from the base wall along an interface and includes an air chamber. The air chamber includes a plurality of tubular columns spaced apart along the interface. The compressed gas source is coupled to the container and is fluidly connected to the air chamber to supply a compressed gas for inflating the container. The tubular columns are fillable with the compressed gas to cause the sidewall to lift upwardly from the base wall, as the container shifts from the deflated configuration to the inflated configuration.

A tank container includes a frame having a front end opposite a rear end that defines a rear plane, a vessel extending between the front end and the rear end of the frame, and a discharge valve assembly. The discharge valve assembly comprises an internal bottom valve, an adaptor, and a discharge valve. The internal bottom valve is positioned within an interior volume of the vessel and the discharge valve is positioned entirely within the frame and offset at least one inch from the rear plane. The adaptor curves downwardly between the internal bottom valve and the discharge valve.

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 spill containment system for container tanks which include a liquid container and a steel frame surrounding the liquid container. The overall dimensions of the container tank are approximately twenty feet long, eight feet wide and eight and a half feet high. Beneath one or more stacked container tanks is a containment pan assembly including a liquid-tight pan having an interior capable of holding at least a portion of the contents of one liquid container. The containment pan assembly has an upper rectangular section that supports the container tanks and also has a length of about twenty feet and a width of eight feet. However, the entire height of the containment pan assembly is between eight inches and twenty-four inches. Additional similarly constructed containment pan assemblies are arranged adjacent the first assembly with hoses interconnecting the interiors of the several liquid-tight pans of the several containment pan assemblies.

A spill containment system for container tanks which include a liquid container and a steel frame surrounding the liquid container. The overall dimensions of the container tank are approximately twenty feet long, eight feet wide and eight and a half feet high. Beneath one or more stacked container tanks is a containment pan assembly including a liquid-tight pan having an interior capable of holding at least a portion of the contents of one liquid container. The containment pan assembly has an upper rectangular section that supports the container tanks and also has a length of about twenty feet and a width of eight feet. However, the entire height of the containment pan assembly is between eight inches and twenty-four inches. Additional similarly constructed containment pan assemblies are arranged adjacent the first assembly with hoses interconnecting the interiors of the several liquid-tight pans of the several containment pan assemblies.

A containment tray for holding, transporting and/or storage of objects, such as, preferably, liquid-filled or, more preferably, oil-filled objects. More particularly, the invention relates to a containment tray capable of holding, transporting and/or storing liquid-filled industrial objects and preventing leaking of both hazardous and non-hazardous materials from such objects when in the containment tray into the outside environment.

A bladder for retaining material to be stored within a bladder tank. The bladder comprises a flexible enclosure comprising a floor portion connected to one or more wall portions, and a leak retention enclosure having upper and lower edges sealed to the flexible enclosure to create a sealed chamber between the flexible enclosure and the leak retention enclosure. Leakage of material from within the flexible enclosure adjacent to the sealed chamber is received within the sealed chamber and retained by the leak retention enclosure.

A roll-off tub style container which is leak-proof to prevent liquids in the container from draining onto the ground or roadways. In one embodiment of the invention, the floor of the container has an upwardly and rearwardly extending inclined portion at the rearward end thereof to prevent liquid in the container from coming into contact with the tail gate of the container. In another embodiment of the invention, the rearward end of the container is elevated during transport to prevent liquid in the container from coming into contact with the tail gate. In yet another embodiment of the container, the floor of the container is inclined upwardly and rearwardly from the forward end thereof to the rearward end thereof. A liquid collection tank may be positioned beneath the floor of the container which has an inlet in fluid communication with the interior of the container and a discharge outlet provided thereon to permit liquid in the tank to be selectively drained therefrom.

A form-coded collar assembly that is configured to be attached around a filling pipe extending into an underground fuel storage tank and comprises a radial lip defining an opening at its open end, and a system having a plurality of such form-coded collar assemblies. The collar assembly has a base plate with a hollow center comprising a greater footprint than the filling pipe; a form-coded collar that corresponds to a substance contained within the underground storage tank; and a sidewall extending between a user-facing surfaces of said base plate and said form-coded collar.