Patent ID: 8276736

Claim:
A conveyor system comprising: a feed conveying device; a first conveyor apparatus positioned adjacent to the feed conveying device such that the first conveyor apparatus is able to receive material from the feed conveying device, the first conveyor apparatus configured to move relative to the feed conveying device, the first conveyor apparatus comprising a frame and a tripper device moveable along the frame; and a second conveyor apparatus positioned adjacent to the first conveyor apparatus, the second conveyor apparatus comprising a frame, a hopper and a tripper device, the frame supporting the hopper and the tripper device, the hopper of the second conveyor apparatus sized and configured for receiving material from the tripper device of the first conveyor apparatus and the tripper device of the second conveyor apparatus sized and configured to stack the material or move material for stacking; wherein during operation, the second conveyor apparatus moves relative to the first conveyor apparatus and receives material from the tripper device of the first conveyor apparatus to stack the material, and also moves relative to the first conveyor apparatus such that the second conveyor apparatus maintains a position substantially parallel to the first conveyor apparatus while the first conveyor apparatus, which is positioned adjacent to the feed conveyor device, moves relative to the feed conveyor device.