Abstract: The present disclosure concerns embodiments of a reciprocating slat conveyor, such as used to form the floor of a mobile cargo container. For example, the slat conveyor can be installed in the collection area of a garbage collection truck. In particular embodiments, the conveyor includes an elongated floor assembly that has a concave upper surface such that the left and right longitudinal sides of the floor assembly curve upwardly from the longitudinal center of the floor assembly. In this manner, materials, especially liquids, tend to funnel downwardly along the curved portions of the floor assembly and accumulate proximate the center of the floor assembly.