Patent ID: 6997798

Claim:
A chimney cap for use in connection with a chimney flue, the flue having an outside surface and a top edge, the flue exhausting combustion gases, the chimney cap comprising: (a) at least one wall, the wall extending between opposite upper and lower edges, the wall extending continuously around a closed circuit, the wall having opposite exterior and interior surfaces, the interior surface defining an interior space, the wall having a plurality of vent holes therethrough, the vent holes communicating with the interior space to vent the combustion gases; (b) a roof integral with the upper edge of the wall, the roof having opposite exterior and interior surfaces; (c) a flange adjacent the lower edge of the wall and spaced outside the wall a predetermined distance, the flange having a perimeter extending completely and continuously around the wall, the flange having a predetermined thickness, the flange having an interior surface for overlapping engagement with the flue outside surface; (d) a shoulder connecting the flange with the lower edge of the wall, the shoulder extending completely and continuously around the wall, the shoulder having an interior surface for resting upon the flue top edge, the wall, roof, flange, and shoulder being of one-piece construction; and (e) fastening means for fastening the chimney cap to the flue.