A semi-trailer for use in hauling grain has four sides and two sloped cargo areas, each having a hopper funnel made of a continuous, unitary polymer material. A door below each hopper is driven by a linear actuator that is disposed above the level of the door. The trailer sidewalls are made of a composite material having inner and outer panels attached to a center panel by adhesive.

A semi-trailer for use in hauling grain has four sides and two sloped cargo areas, each having a hopper funnel made of a continuous, unitary polymer material. A door below each hopper is driven by a linear actuator that is disposed above the level of the door. The trailer sidewalls are made of a composite material having inner and outer panels attached to a center panel by adhesive.

A trailer system for hauling material. The trailer system including a frame and a container attached to the frame. A lid is operatively associated with a first aperture and adapted to at least move between an open position and a closed position. When in the closed position the lid seals the first aperture such that the seal is watertight. A gate is operatively associated with a second aperture and adapted to at least move between an open position and a closed position. When in the closed position the gate seals the second aperture such that the seal is watertight. A pusher plate assembly is arranged with the container for pushing material contained in the container in a direction towards the second aperture.

A fluid-driven hatch for a bulk material container includes a cover is opened by a fluid-driven cover actuator and secured by a fluid-driven lock actuator. A fluid conduit connects both the fluid-driven cover actuator and the fluid-driven lock actuator to a pressurized fluid source. Pressurized fluid is selectively supplied to the fluid conduit such that the fluid-driven lock actuator is actuated at a first pressure to unlock the cover, and the fluid-driven cover actuator is actuated moments later at a second, higher pressure to open the cover.

An apparatus for delivering proppant to a well site includes a plurality of proppant containers. The apparatus also includes a support structure having a bed and a structural framework extending down from the bed. The plurality of proppant container are structurally supported on top of the bed. A bin is disposed within the structural frame work below the bed. A conveyor cooperates with the bin for transporting proppant from the bin to a desired location at the well site. Proppant discharged from one or more of the plurality of proppant containers positioned on the bed above the bin is received in the bin and delivered to the well site by the conveyor.

An apparatus for delivering proppant to a well site includes a plurality of proppant containers. The apparatus also includes a support structure having a bed and a structural framework extending down from the bed. The plurality of proppant container are structurally supported on top of the bed. A bin is disposed within the structural frame work below the bed. A conveyor cooperates with the bin for transporting proppant from the bin to a desired location at the well site. Proppant discharged from one or more of the plurality of proppant containers positioned on the bed above the bin is received in the bin and delivered to the well site by the conveyor.

The present disclosure relates to a flying body. The flying body includes a mounting space for mounting an object, a loading port for loading the object in the mounting space, and a take-out port for taking out the object loaded in the mounting space, wherein the loading port and the take-out port are provided at least partially at different positions. According to such a configuration, even a person without specialized knowledge can operate it easily and safely.

The technology disclosed herein relates to a maintenance vehicle. The vehicle has a vehicle frame, drive wheels rotatably coupled to the vehicle frame and a prime mover coupled to the vehicle frame. The prime mover is in operative communication with the drive wheels. A hopper assembly is pivotably coupled to the vehicle frame. The hopper assembly has a hopper having a discharge opening and a spreader disk adjacent to the discharge opening. The hopper assembly is pivotable about a pivot axis between a maintenance position and an operating position. The spreader disk is positioned vertically below the discharge opening when the hopper assembly is in an operating position.

The technology disclosed herein relates to a maintenance vehicle. The vehicle has a vehicle frame, drive wheels rotatably coupled to the vehicle frame and a prime mover coupled to the vehicle frame. The prime mover is in operative communication with the drive wheels. A hopper assembly is pivotably coupled to the vehicle frame. The hopper assembly has a hopper having a discharge opening and a spreader disk adjacent to the discharge opening. The hopper assembly is pivotable about a pivot axis between a maintenance position and an operating position. The spreader disk is positioned vertically below the discharge opening when the hopper assembly is in an operating position.

A hauling and spreading trailer assembly for spreading loose material includes a trailer, which has a tongue that is engageable to a hitch of a tow vehicle. The trailer comprises a fixed bottom in which a plurality of apertures is positioned. A plurality of sidewalls extends substantially perpendicularly from the fixed bottom. A false bottom is slidably engaged to the trailer so that the false bottom is selectively positionable in first and second positions in which at least one of the apertures is at least partially open and the apertures are closed, respectively. A load of flowable material is positionable in the trailer with the false bottom in the second position. The false bottom can be selectively slid to the first position to dispense the flowable material through the at least one aperture, thereby allowing the flowable material to be spread at the trailer is towed.