Patent ID: 8714658

Claim:
A hopper for transportation of mineral or aggregates, said hopper preventing material from falling off due to slope movements and improving load performance and facilitating the release, wherein said hopper comprises: a) in an area joining a front portion and a floor portion there are folded pieces providing curvature to such joining area, wherein the hopper front is folded with a wide radius; b) in an area joining a first side portion and said floor portion there are folded pieces providing curvature to such joining area; and c) in an area joining a second side portion and said floor portion there are folded pieces providing curvature to such joining area; wherein folds in said front avoid a need for beams in said front of said hopper, and wherein an area of release in said hopper is wider than said front of said hopper to allow for a better sliding of the material upon unloading.