Patent ID: 8875864

Claim:
A material handling system comprising: a plurality of portable conveyors, each of the portable conveyors comprising a frame and at least one track assembly attached to the frame, each of the portable conveyors having a first end and a second end opposite the first end, the at least one track assembly positioned adjacent to the second end; a mobile bridge conveyor; and a stacker, the stacker positionably adjacent to the mobile bridge conveyor to receive material from the mobile bridge conveyor for stacking the material in a storage area; the portable conveyors comprising a first portable conveyor and a second portable conveyor, the first end of the first portable conveyor being positionably adjacent the second end of the second portable conveyor to receive material from the second portable conveyor, the first portable conveyor also being positionable to extend on an angle relative to the second portable conveyor toward the mobile bridge conveyor to feed material from the second end of the first portable conveyor to the mobile bridge conveyor; the first portable conveyor moving away from the mobile bridge conveyor, the second portable conveyor, and the stacker when an end of the mobile bridge conveyor that feeds the stacker is detected as being at or within a predetermined distance of the second end of the first portable conveyor; and the second portable conveyor rotating via the at least one track assembly such that the second end of the second portable conveyor moves toward the mobile bridge conveyor until reaching a feeding position in which the material being fed from the second end of the second portable conveyor is fed to the mobile bridge conveyor.