Patent ID: 8631927

Claim:
A chain for a particulate material extrusion pump comprising: a plurality of links, each of said plurality of links having a link body and a link ledge which extends therefrom, wherein each link ledge of each of said plurality of links at least partially overlaps the link body of an adjacent one of said plurality of links such that said link ledge and said link body that is at least partially overlapped by said link ledge together provide a flat surface, and each said link body including a plurality of link plates extending therefrom, each of said plurality of link plates including a first aperture and a second aperture such that said first apertures on said link body axially align and said second apertures on said link body axially align, said first apertures on each said link body being in axial alignment with said second apertures on a forward neighboring one of said plurality of links and said second apertures on each said link body being in axial alignment with said first apertures on an aft neighboring one of said plurality of links.