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

A metering system includes a frame, first and second gates, and an actuator. The frame defines a chute configured to receive a supply of fasteners and maintain the fasteners in a line. The first and second gates are each mounted to the frame and movable to advance into the chute and retract away from the chute. The actuator is mechanically coupled to the first gate and configured to advance and retract the first gate relative to the chute. The second gate is configured to move based on the movement of the first gate so that as the first gate advances into the chute to block movement of the fasteners in the chute the second gate retracts, and as the first gate retracts away from the chute the second gate advances into the chute to block the movement of the fasteners in the chute.

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

The present invention is directed to a cover assemblies for use with containers such as large dumpsters or roll-off containers. The cover assembly generally includes a cover portion, a frame portion, and one or more mounting arms. The cover is coupled to the frame, and the frame is movable with respect to the mounting arm from a first position to a second position, wherein the first position comprises a closed position and wherein the second position comprises an open position.

The present invention corresponds to materials storage devices; specifically to a specialized container for the storing of granulated raw materials and its operations support base; which has been created in response to the need of storing granulated raw materials, preferably silica meant to be used in, preferably but not limited to, petroleum wells; and which is fitted with specific modifications that facilitate both the loading and discharge of said raw materials in a shorter time lapse than that displayed by conventional technologies. The invention's preferred configuration contemplates the setting up of three containers on top of the operations support base.

A manway gate assembly couples to a tank and provides a liquid tight seal. The manway gate assembly includes a gate selectively slideable in a first linear direction between an open position, a closed position, and/or an intermediate position between the open position and the closed position. The manway gate assembly includes one or more locking members arranged adjacent to the gate and moveable between a locked position and an un-locked position. When in the locked position, the one or more locking members apply a biasing force to the gate in a second linear direction perpendicular to the first linear direction to seal the gate to the tank and provide a liquid tight seal.

The present invention is directed to a cover assemblies for use with containers such as large dumpsters or roll-off containers. The cover assembly generally includes a cover portion, a frame portion, and one or more mounting arms. The cover is coupled to the frame, and the frame is movable with respect to the mounting arm from a first position to a second position, wherein the first position comprises a closed position and wherein the second position comprises an open position.

Apparatus for delivering controlled amounts of granular resin into a conveying conduit includes a hopper for storing the resin, an air cylinder, a double-ended piston within the air cylinder, passive and active piston rods extending from opposite sides of the piston out of the ends of the cylinder, and a slide gate connected to the active piston rod, with the slide gate being positioned between a discharge opening of the hopper and an opening in the conveying conduit.

A cargo container is modified to carry a fracing proppant such as sand from a quarry or source to the frac site. Openings are cut in the top and bottom of a cargo container and hydraulically operated sliding doors are placed there under. A hopper module with the walls being inclined to approximately the angle of repose for the proppant is installed inside the cargo container. The hopper module is sealed inside the cargo container so that a proppant enters through the top opening at the quarry and flows out through the bottom opening at the fracing site. Once transported to the frac site, the modified cargo container is lifted, emptied and set aside.

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.