Methods for handling bulk material in a manner that reduces dust, noise, and emissions are provided. The presently disclosed techniques use portable containers to transfer bulk material from a transportation unit to a blender inlet. The containers may be carried to the location on the transportation unit, where a hoisting mechanism is used to remove the container from the transportation unit and place it in a desired location. When bulk material is needed at the blender inlet, the hoisting mechanism may position the container of bulk material onto an elevated support structure. Once on the support structure, the container may be opened to release bulk material to a gravity feed outlet, which routes the bulk material from the container directly into the blender inlet. The disclosed containerized bulk material transfer system and method allows for reduced dust, noise, and emissions on location.

An agricultural dump cart including a frame, ground conveyance devices carrying the frame, a dump bed, a dumping mechanism and at least one live wall mechanism. The dump bed is coupled to and carried by the frame, and the dump bed has a non-dumping position and a dumping position. The dumping mechanism is connected to the dump bed, and is configured to move the dump bed between the non-dumping position and the dumping position. The at least one live wall mechanism is operatively located along a side of the dump bed. The at least one live wall mechanism is configured for moving a crop material out of the dump bed.

Trailer trolley-type conveyor system, comprising a plurality of the elongated rails adapted for installation on a trailer bed, a conveyor system frame adapted for transport back and forth along the rails within a trailer's exterior framework, a plurality of wheels mounted on the frame and adapted for rolling carriage of the frame on the rails, at least one winch adapted for mounting onto the trailer and adapted for pulling the frame with any cargo thereon back and forth along the rails; and at least one lock engaged with one of the frame, the wheels, and the rails, adapted for preventing movement of the conveyor system frame during transport of the trailer.

A system for fulfilling peer-to-peer transactions by autonomous robot vehicles includes processor(s) and a memory storing instructions which, when executed by the processor(s), cause the system to: receive information on a peer-to-peer transaction between a seller and a buyer for an item, communicate instructions to an autonomous vehicle to travel to a first destination and receive the item, receive an indication that the item has been received, communicate instructions to the autonomous vehicle to travel to a second destination to deliver the item to the buyer, receive a signal indicating that buyer funds are in escrow, and receive a signal indicating that the item is accepted or rejected by the buyer. In a case where the item is accepted, the system communicates a release of the funds from the escrow to the seller. In a case the item is rejected, the system determines a handling itinerary for the item.

A conveyor sled assembly is utilized to supply proppant in support of oilfield hydraulic fracturing operations. The conveyor sled assembly includes precisely positioned components where tolerances between components are so small as to prevent significant spillage at component junction boundaries. This manner of fitting proppant pods onto the conveyor sled assembly increases predictability of which pods will discharge their proppant load first. This enhances reliability of the overall proppant delivery system.

A conveyor sled assembly is utilized to supply proppant in support of oilfield hydraulic fracturing operations. The conveyor sled assembly includes precisely positioned components where tolerances between components are so small as to prevent significant spillage at component junction boundaries. This manner of fitting proppant pods onto the conveyor sled assembly increases predictability of which pods will discharge their proppant load first. This enhances reliability of the overall proppant delivery system.

An autonomous robot vehicle in accordance with aspects of the present disclosure includes a land vehicle conveyance system, a communication system configured to communicate with a remote human operator system, one or more processors, and a memory storing instructions. The instructions, when executed by the processor(s), cause the autonomous robot vehicle to receive via the communication system control instructions from the remote human operator system for controlling the land vehicle conveyance system, control the land vehicle conveyance system in accordance with the control instructions to perform travel, and autonomously control the land vehicle conveyance system in coordination with the control instructions from the remote human operator system to semi-autonomously perform travel.

A system for a mobile secure locker in accordance with aspects of the present disclosure includes processor(s) and memory storing instructions. The instructions, when executed by the processor(s), cause the system to provide a user interface for a user to rent a mobile secure locker in an autonomous robot vehicle, receive information through the user interface from the user where the information includes a first destination, a second destination, and a time associated with the second destination, communicate instructions to the autonomous robot vehicle to travel to the first destination to receive the item, receive an indication from the autonomous robot vehicle that the item has been received, communicate instructions to the autonomous robot vehicle to travel to the second destination to deliver the item to the user at the time associated with the second destination, and receive from the autonomous robot vehicle an indication the item is retrieved.

A system for a mobile secure locker in accordance with aspects of the present disclosure includes processor(s) and memory storing instructions. The instructions, when executed by the processor(s), cause the system to provide a user interface for a user to rent a mobile secure locker in an autonomous robot vehicle, receive information through the user interface from the user where the information includes a first destination, a second destination, and a time associated with the second destination, communicate instructions to the autonomous robot vehicle to travel to the first destination to receive the item, receive an indication from the autonomous robot vehicle that the item has been received, communicate instructions to the autonomous robot vehicle to travel to the second destination to deliver the item to the user at the time associated with the second destination, and receive from the autonomous robot vehicle an indication the item is retrieved.

A wet sand delivery and conveyor apparatus ships wet proppant from a sand mine wet plant to a well fracturing site and delivers the wet proppant directly to the well site. The wet sand delivery and conveyor apparatus comprises a multi-container support frame, which is mounted on a trailer bed, a plurality of containers mounted to an upper portion of the frame, and a conveyor belt mounted on the frame below the plurality of containers and positioned to receive proppant released in a gravity pour from the containers onto the conveyor belt. An auger mounted near an end of the conveyor belt is also provided to transfer sand from the end of the trailer bed to a position extending diagonally upward and away from the trailer bed to drop sand into a vessel or sand deposit site positioned underneath an upper end portion of the auger.