Patent ID: 7793691

Claim:
A concrete truck drum insulating system comprising: a material layer for covering the drum, comprising a plurality of complementary frustoconical and cylindrical sections; each of the sections comprised of a plurality of complementary panels; each of the frustoconical panels including a large arc, a small arc, and a pair of linear edges between the large and small arcs; the large arcs of the frustoconical panels of a frustoconical section connected to the small arcs of the frustoconical panels of an adjacent frustoconical section; the cylindrical sections located between two frustoconical sections; a longitudinal seam substantially coplanar with the azimuthal axis of the concrete drum, the seam having a first edge and complementary second edge, wherein the first and second edges are comprised of the linear edges of the frustoconical panels; a plurality of connectable fasteners disposed along the first edge and the second edge; a longitudinal flap located adjacent to the seam; and, a flap attachment located adjacent to the seam, removably attachable to the flap, wherein attachment of the flap to the flap attachment covers the seam and fasteners when the fasteners of the first edge are connected to the fasteners of the second edge.