A container includes a receptacle including an upright receptacle side and a receptacle bottom that cooperate to at least partly define a container chamber. The bottom presents a peripheral margin, with the side being attached to the bottom along the peripheral margin and extending upwardly relative to the bottom along an upright container axis. The receptacle further includes a drain configured to permit material flow out of the chamber, with the drain intersecting the bottom to define a drain opening that fluidly communicates with the chamber. The drain opening is spaced inboard from the peripheral margin and is laterally offset from the container axis in an offset direction. The bottom includes first and second floor sections extending inboard from the peripheral margin and joined relative to each other along a first gutter area adjacent the drain opening. The first floor section slopes downwardly toward the first gutter area in the offset direction and the second floor section slopes downwardly toward the first gutter area in a direction opposite the offset direction, with the floor sections configured to cooperatively advance material within the chamber toward the drain opening.

A container is configured to receive bulk material therein and to experience a pressure differential for which an internal container pressure is greater than ambient pressure. The container includes a receptacle and a removable lid. The receptacle defines a chamber to receive material. The receptacle includes a fill neck that defines a receptacle opening in fluid communication with the chamber. The lid covers the receptacle opening in an engaged condition to enclose the chamber. The receptacle includes a receptacle connector with spaced apart connector teeth, and the lid includes a lid connector with spaced apart connector lugs. The receptacle connector and the lid connector cooperatively providing a fractional-turn connection where the connector teeth and lugs are rotatable into and out of engagement with one another in the engaged condition to restrict lid separation from the fill neck associated with the pressure differential.

A container is configured to receive bulk material therein and to experience a pressure differential for which an internal container pressure is greater than ambient pressure. The container includes a receptacle and a removable lid. The receptacle defines a chamber to receive material. The receptacle includes a fill neck that defines a receptacle opening in fluid communication with the chamber. The lid covers the receptacle opening in an engaged condition to enclose the chamber. The receptacle includes a receptacle connector with spaced apart connector teeth, and the lid includes a lid connector with spaced apart connector lugs. The receptacle connector and the lid connector cooperatively providing a fractional-turn connection where the connector teeth and lugs are rotatable into and out of engagement with one another in the engaged condition to restrict lid separation from the fill neck associated with the pressure differential.

A method is disclosed for storing and moving proppant. A supply of fracking proppant is provided at a remote location. A plurality of containers are provided to the desired location, each container having a top, a plurality of walls extending from the top and terminating at an outlet for discharge of proppant therefrom and a flow gate positioned adjacent the outlet to control flow of proppant from an interior volume of the container through the outlet. The plurality of containers are filled with fracking proppant at the remote location, then transported from the remote location to a well site location. The plurality of containers are staged at the well site location and the amount of proppant on hand at the well site location is tracked.

A container is provided. The container includes multiple sidewalls extending in a substantially vertical direction and a bottom wall. The bottom wall includes a central portion, a first curved portion and a second curved portion. The first curved portion includes a first radius of curvature with a first center of curvature located on a first side of the bottom wall of the container, while the second curved portion terminates at the sidewalls and include a second radius of curvature with a second center of curvature located on a second side of the bottom wall of the container. The container further includes multiple reinforcing ribs located on the second side, each of the reinforcing ribs having a minimum height proximate the first curved portion and a maximum height proximate the second curved portion.

A container is provided. The container includes multiple sidewalls extending in a substantially vertical direction and a bottom wall. The bottom wall includes a central portion, a first curved portion and a second curved portion. The first curved portion includes a first radius of curvature with a first center of curvature located on a first side of the bottom wall of the container, while the second curved portion terminates at the sidewalls and include a second radius of curvature with a second center of curvature located on a second side of the bottom wall of the container. The container further includes multiple reinforcing ribs located on the second side, each of the reinforcing ribs having a minimum height proximate the first curved portion and a maximum height proximate the second curved portion.

Presenting an auxiliary storage apparatus and aircraft container that enables existing non-regulated temperature containers to be equipped with specific features such as cooling, heating, and humidifying features. The storage container with specific features is inserted into a non-regulated temperature container for aircraft use and affixed to the interior of the non-regulated temperature container by the auxiliary storage apparatus, which includes a wire that passes over the storage container, hooks and pulleys that affix to existing support brackets located on four corners of a floor surface, and a turnbuckle. One end of the wire hooks onto a first hook. The wire passes over the storage container and winds around the pulleys. The other end of the wire attaches to a second hook using the turnbuckle. During operation of the turnbuckle, the wire tightens against the storage container, and the storage container is affixed to the interior of the non-regulated temperature container.

A molded container assembly includes a pallet, a molded container, and a plurality of connection systems. The pallet supports the molded container thereon and includes stacking alignment structure for stacking the pallet on another molded container assembly. The molded container includes a tank portion, several leg supports, and several buttresses. The tank portion includes several curved sidewalls and a fill opening. The leg supports include lower sections and upper sections that extend above the fill opening for spacing a pallet stacked on top of the molded container above the fill opening. The upper sections include pallet engaging structure for engaging pallets of at least two different types. The buttresses extend between the tank portion and the leg supports. The connection systems include washers that allow for shrinkage and expansion between the molded container and the pallet in a number of directions.

A container or pod is specially constructed for hauling proppant in support of oilfield hydraulic fracturing operations. Dimensions are provided that comport with common dimensions in use for transportation of intermodal containers, with the containers being sized so as not to require special permitting from a regulatory standpoint when two such containers are loaded on a single trailer. A method of filling the containers is also provided, which include inverting the container to fill from a bottom gate that also serves as the discharge opening when the filled container is rotated back into an upright position.

The present invention is a new method to efficiently reclaim cement from a horizontal warehouse. This new reclaiming method combines a mechanical cement reclaiming machine, together with a reduced amount of open air slides. Material is fluidized through a porous media with low pressure air. Material flow is achieved by sloping the Air slide conveyor to match the fluidized angle of repose of the powdered material. Further, the present invention introduces a conveying system, comprising a cascade of open and enclosed air slides and elevator machines, to convey the cement from the reclaiming area to a dispatch hopper. The introduction of these components, together with cement stacking and dispatch systems, is a Fully Automated Cement Horizontal Storage system and method.