A modular shipping apparatus having a shipping container with a bottom interior with a first track and a second track attached thereto; a base having a bottom portion with at least two wheel assemblies that slide along the first track and the second track; a pulley system assembly attached to the bottom interior of the shipping container and the top side of the liftgate to drag the base along the first track and the second track, wherein the pulley system assembly has a wheel end installed along an underside of the shipping container, a pulley end that is attached to the top side of the lift gate, a strap that is wrapped around the wheel end and the pulley end and attached to a portion of the base to drag the base along the tracks of the shipping container when removing the base from the shipping container.

Powder feeding apparatuses (100; 200) and methods. The powder feeding apparatus (100; 200) can include first and second cylindrical rollers (106, 107; 206, 207) adjacent to each other and spaced apart by a gap (108; 208). The first roller (106; 206) can rotate intermittently and independently of the second roller (107; 207). The second roller can rotate intermittently and independently of the first roller. Powder from a hopper (102; 202) is fed through the gap as one or both rollers rotate. The powder feeding method may include a method of feeding powder by intermittently and alternately advancing a first and second roller to dispense powder from the hopper.

A tilt-less liner apparatus and system for unloading bulk cargo from a container liner using a first layer on the container liner floor having a friction reducing top layer and a friction enhancing bottom layer to secure first layer against movement. A second layer of flexible high strength material folded in over lapping multiple pre-folded sections from at least two to eight folded stacked layers are used to cover the friction reducing top first layer. The second layer is connected to a coiling means and motor for coiling up and removing the second layer from the container over the friction reducing top layer of the first layer and the bulk cargo comes out with the second layer into a hopper provided with means for bulk product distribution. Vibrators, depth measuring devices and speed controls are provided to control bulk cargo unloading and prevent blockage build up.

A portable fluid storage system for use during frac jobs or other operations requiring storage of water or other fluids. The system comprises a lower chamber and an upper chamber sized to fit within the lower chamber. A lift system, such as screw jacks or rack and pinion gears, is disposed to move the lower chamber from a collapsed position to an extended position where the upper chamber is positioned above the lower chamber. A seal is disposed to engage the upper chamber and the lower chamber when the system is in the extended position. The upper chamber, the seal, and the lower chamber form a water tight compartment when the system is in the extended position. When positioned for use, the storage system is moved to the extended position to hold twice as much fluid as in the collapsed position.

A wheeled shipping/transport cart includes a cart frame that supports a plurality of wheels. The cart frame supports a plurality of stackable trays. The trays include a tray frame with opposed end members, a plurality of longitudinal support members disposed between the opposed end members, and a plurality of upright members nesting with upright members of an adjacent tray. A support structure is disposed between the opposed end members to form an arc corresponding to a curved surface of an article to be supported by the support structure. A pin is received through each of the upright members of the plurality of stackable trays to retain the stackable trays in a stacked configuration.

A liner floor for use in a container liner is provided. The liner floor includes a floor portion arranged between a distal end and a proximal portion and the floor portion is configured for being arranged on a floor of the container. The floor portion includes a plurality of stacks of folded sections. The stacks are folded such that a top fold of one stack is connected to a bottom fold of a proximal neighbouring stack. A weight of the folded sections varies along the floor portion with each of the folded sections having at least the same weight as a proximal neighbouring folded section. Also provided are methods for unloading cargo from a container including a liner, and methods and apparatuses for loading cargo into a container.

A subsea storage unit includes a pressure hull having a cargo hold configured for storing cargo. The pressure hull has a movable hatch, providing access to the cargo hold; and a base configured for supporting the storage unit on a seabed. The unit also includes a suspension, whereby the storage unit can be lifted and lowered in a body of water, and a ballast. A seabed facility can be configured for receiving and accommodating at least one subsea storage unit.

A container for holding product therein during shipment and being returned for reuse has guides containing generally L-shaped slotted tracks having horizontal and vertical portions. A plurality of dunnage supports extend between the tracks. Dunnage is suspended by the dunnage supports. The dunnage supports have narrowed portions engaged with the slotted tracks.

An example item storage system may include a shipping container and a plurality of storage modules disposed within the interior of the shipping container. Each storage module may include an upper support structure, a lower support structure, and a frame. The upper support structure may engage with a corresponding lower support structure of a first different storage module. The frame may define an upper level to support a first plurality of moveable container carriers, and a lower level to support a second plurality of moveable container carriers.

A sewer and/or road cleaning vehicle is provided. The cleaning vehicle includes a dirt removal container with a central longitudinal barrel axis, container walls and a container bottom. The dirt removal container has a shape of a barrel and is arranged to accommodate and transport mineral dirt residues collected during cleaning. A clearing device is provided to empty out the dirt removal container. The clearing device includes a conveying screw and is arranged on a carrier inside the dirt removal container. The carrier is pivoted around the central longitudinal barrel axis by a pivoting drive so that the conveying screw is laterally deflected in a first and in a second direction along the container walls relative to a center position associated with the container bottom. A discharge screw assembly is arranged downstream of, and transversely to, the conveying screw to discharge the mineral dirt residues outwardly.