A proppant discharge system includes a container having an outlet formed at a bottom thereof, a gate affixed at the outlet and positioned on the floor of the container so as to be movable between a first position covering the outlet to a second position opening the outlet, a support structure having the container positioned on the top surface thereof. The support structure has at least one actuator affixed thereto. The actuator is positioned so as to move the gate between the first position and the second position. The container has a cage affixed on the floor thereof in a position over the outlet. The gate is positioned within the cage and is movable by the actuator so as to open the gate so as to allow proppant to be discharged therefrom.

A proppant discharge system includes a container having an outlet formed at a bottom thereof, a gate affixed at the outlet and positioned on the floor of the container so as to be movable between a first position covering the outlet to a second position opening the outlet, a support structure having the container positioned on the top surface thereof. The support structure has at least one actuator affixed thereto. The actuator is positioned so as to move the gate between the first position and the second position. The container has a cage affixed on the floor thereof in a position over the outlet. The gate is positioned within the cage and is movable by the actuator so as to open the gate so as to allow proppant to be discharged therefrom.

A stackable container system configured to carry material includes at least one container having a first end and a second end, a holding area for the material, the holding area extending from the first end to the second end, a first opening at the second end, the material controllably releasable from the holding area through the first opening, and a chute that passes through the holding area, the chute extending from the first end to the second end, a first end of the chute including a receiving portion having a larger area than a combined area of the first opening and a second end of the chute.

A seed storage and dispensing bin includes a walled container having a top, a bottom opposite the top, an interior space defined between the top and the bottom and a divider dividing the interior space into first and second separate spaces each sized to receive a plurality of seeds therein. First and second openings are defined in the walled container at or near the bottom thereof, with each opening to a respective one of the first and second spaces. First and second doors are mounted to the container over the first and second openings respectively. Means are provided for moving the first door between open and closed positions thereof, and for moving the second door between open and closed positions thereof. In some embodiments, the same or different cross-sectional areas of the first and second openings may be exposed through selective movement of the first and second doors respectively.

A seed storage and dispensing bin includes a walled container having a top, a bottom opposite the top, an interior space defined between the top and the bottom and a divider dividing the interior space into first and second separate spaces each sized to receive a plurality of seeds therein. First and second openings are defined in the walled container at or near the bottom thereof, with each opening to a respective one of the first and second spaces. First and second doors are mounted to the container over the first and second openings respectively. Means are provided for moving the first door between open and closed positions thereof, and for moving the second door between open and closed positions thereof. In some embodiments, the same or different cross-sectional areas of the first and second openings may be exposed through selective movement of the first and second doors respectively.

An apparatus for the transport and storage of proppant has a container with a top wall, a pair of end walls and a pair of side walls. The pair of side walls extend between the pair of end walls. The container has a bottom discharge opening. The container includes a funnel extending from the pair of side walls and from the pair of and walls toward the bottom discharge opening. The funnel has sides extending in an angle of greater than 25° with respect to horizontal. The funnel includes a pair of side plates extending respectively from the pair of side walls toward the bottom discharge opening and a pair of end plates extending respectively from the pair of end walls toward the bottom discharge opening. Each of the side plates and the end plates is formed of a stainless steel material.

An apparatus for the transport and storage of proppant has a container with a top wall, a pair of end walls and a pair of side walls. The pair of side walls extend between the pair of end walls. The container has a bottom discharge opening. The container includes a funnel extending from the pair of side walls and from the pair of and walls toward the bottom discharge opening. The funnel has sides extending in an angle of greater than 25° with respect to horizontal. The funnel includes a pair of side plates extending respectively from the pair of side walls toward the bottom discharge opening and a pair of end plates extending respectively from the pair of end walls toward the bottom discharge opening. Each of the side plates and the end plates is formed of a stainless steel material.

An intermodal container for transporting frac proppant, such as frac sand, and/or other types of granular material is disclosed. The intermodal container is designed to receive frac sand from a quarry or other frac sand supply source. Once the container is filled with material, the container is loaded onto a transportation device and transported to a well site. Once received at the well site, the containers can be stacked and the frac sand stored until needed. Once the frac sand is needed, the containers are placed on a base unit and the container discharges its contents onto a conveying system formed as part of the base unit. The conveying system directs the frac sand to a blending location. The empty intermodal containers can be removed from the base unit and loaded onto a transportation device to be refilled at a mine site.

An intermodal container for transporting frac proppant, such as frac sand, and/or other types of granular material is disclosed. The intermodal container is designed to receive frac sand from a quarry or other frac sand supply source. Once the container is filled with material, the container is loaded onto a transportation device and transported to a well site. Once received at the well site, the containers can be stacked and the frac sand stored until needed. Once the frac sand is needed, the containers are placed on a base unit and the container discharges its contents onto a conveying system formed as part of the base unit. The conveying system directs the frac sand to a blending location. The empty intermodal containers can be removed from the base unit and loaded onto a transportation device to be refilled at a mine site.

A fleet refueling silo tank system gravity feeds fuel through hoses to fleet units without requiring pressurizing pumps. A specialized valve at the fleet unit fuel tank prevents vapor escape and admits fuel at low, gravity-feed pressures. The valve includes a valve body with an upper end and a lower end, the upper end adapted to engage a cap which affixes the valve body to the fuel tank fill mouth. Below the cap, a fuel cut-off plunger and seat selectively interrupt fuel flow through the mouth by responding to a buoyant float extending coaxially beneath the valve body and into the fuel tank. Linkage coupled to the plunger extends through the valve body to the float, and roller bearings within the valve body engage a shaft extending from the float coaxially into the lower end of the valve body.