Patent ID: 7284650

Claim:
A mobile conveying and stacking system for the multilayer dumping of material being conveyed, the system comprising: a defined number of self-propelled standard grasshoppers of a defined effective length, said self-propelled standard grasshoppers being arranged in a row and being of substantially identical design to form feeding conveyors; a self-propelled special stacker with a bridge and with a pickup chute extending nearly over the entire length of said bridge and defining a material pickup area and with a swingable stacker boom; and a self-propelled transfer grasshopper for transferring material being conveyed from a last of said standard grasshoppers onto said special stacker, said self-propelled standard grasshoppers, said self-propelled transfer grasshopper and said self-propelled special stacker being set up such that directions of conveying of said standard grasshoppers that form a standard grasshopper straight line and a direction of conveying of said special stacker that forms a special stacker straight line, with said standard grasshopper straight line parallel to said special stacker straight line as viewed from a top view and a distance between said straight lines is so great that said transfer grasshopper with its said direction of conveying forms an angle between 30° and 60° in the top view with said directions of conveying of said standard grasshoppers and of said special stacker, and said effective length of said standard grasshoppers and of said material pickup area of said special stacker are nearly equal, said self-propelled standard grasshoppers, said self-propelled transfer grasshopper and said self-propelled special stacker cooperating for material handling.