An automated gate actuator system is provided for use in selectively opening and closing a gate that dispenses proppant from a proppant container during the course of a hydraulic fracturing operation. A lever arm is pivotally mounted for movement to place a drive gear in contact with a driven gear to open and close the gate. The gate may be remotely or autonomously actuated in this manner utilizing an electronic control triggered by human and/or sensor input.

The present invention discloses a container, comprising a container body and a lid, the container body comprises a base and side plates, the lid is provided with a first hanging-against structure, the side plate is provided with a second hanging-against structure cooperating with the first hanging-against structure, the first hanging-against structure and the second hanging-against structure are separatable to achieve hanging-against and removal of the lid, the lid is slidable above the container body whereby the first hanging-against structure and the second hanging-against structure are brought close to or away from each other, wherein the first hanging-against structure is slidable along the lid for a certain distance so that the position of the center of gravity of the lid changes relative to the first hanging-against structure. The present invention can realize the multi-directional hanging function of the lid and the container, with novel and reliable structure, simple and convenient operation, solid and durable.

A bulk material shipping container unloader having an expandable supporter, a pallet receiver supported by the extendable supporter, a material director supported by the pallet receiver, and a bulk material container gate mover supported by the pallet receiver.

An article storage device, includes: a luggage cargo having a plurality of storage chambers; an outer door; an outer door drive device; a plurality of inner doors; and a switching device, wherein the inner doors are slidable together with the outer door if coupled to the outer door, the plurality of inner doors include a first inner door and a second inner door, the plurality of storage chambers include a first storage chamber having a first opening and a second storage chamber having a second opening, the first opening is opened and closed by the first inner door sliding together with the outer door while being coupled to the outer door, and the second opening is opened and closed by the second inner door sliding together with the outer door while being coupled to the outer door.

A vehicle contains multiple cargo hoppers. A system opens the first hopper, which discharges its cargo into a chute. After discharge completes, a driver moves the vehicle forward, and the system opens the second hopper, which discharges into the chute. After the discharge is completed, the driver moves the vehicle forward, and the system opens the third hopper, which discharges into the chute, and so on. The process and system repeat for as many hoppers need to be unloaded.

An automated gate actuator system is provided for use in selectively opening and closing a gate that dispenses proppant from a proppant container during the course of a hydraulic fracturing operation. A lever arm is pivotally mounted for movement to place a drive gear in contact with a driven gear to open and close the gate. The gate may be remotely or autonomously actuated in this manner utilizing an electronic control triggered by human and/or sensor input.