Abstract: An excavation bucket with a chain adherent release device, wherein inside the bucket is two side chains positioned proximate the bucket sides, at least one inner chain spaced between the side chains, and at least one cross chain attached to the side chains and positioned between the front and back of the bucket and attached to the at least one inner chain, but not attached to the bottom of the bucket. The side chains, the at least one inner chain and the at least one cross chain form a grid. The side chains and at least one of the inner chain each have both back attachment points proximate the back of the bucket and front attachment points proximate the front of the bucket. The grid has sufficient length to lie untensioned on the bottom of the bucket when it is in the empty and upright position and has direct, uninterrupted and continuous contact with the bottom of the bucket.

Abstract: The present invention is a dump truck with a bed with a chain adherent release device, wherein the bed has a bottom and two side walls, an inside configured to hold materials, a front wall and a back edge. The bed has a lifted position and a flat, unlifted position. Attached inside the bed is a chain adherent release device which has two bed side chains positioned proximate and parallel to the side walls, at least one bed inner chain spaced between the side chains, and at least one bed cross chain approximately perpendicular to the bed side chains, attached to the side chains and positioned between the front and back of the bed, but not attached to the bottom of the bed. The chains have a sufficient length to have direct contact with the bottom of the bed, and to lie in the bottom of the bed when the bed is in in the flat and unlifted position.