Patent ID: 8341908

Claim:
An expansion joint system, comprising: a cover plate; a spline having a first face and a second face, the spline includes a first member and a second member joined edge-to-edge with the first member, the first member being attached to the cover plate along an edge opposite the second member, the second member being comprised of a non-conductive material; a first open celled foam having a fire-retardant material infused therein located on the first face of the spline; a first layer of a waterproof elastomer disposed on a surface of the first open celled foam; a second open celled foam having a fire-retardant material infused therein located on the second face of the spline; and a second layer of a waterproof elastomer disposed on a surface of the second open celled foam; wherein the spline depends from the cover plate and is positioned in a gap between substantially coplanar substrates such that the cover plate overlies the gap; and wherein the first open celled foam is compressed between the first face of the spline and one of the coplanar substrates and the second open celled foam is compressed between the second face of the spline and the other of the coplanar substrates.