Patent ID: 7713114

Claim:
A chimney cap assembly comprising: a circular shaped base having a circular central opening and a bottom edge; an annular collar member for insertion into a chimney or flue, said annular collar member having an outside circumference smaller than an opening of said chimney or flue and supported from said circular shaped base about said circular central opening of the circular shaped base; an annular shaped mesh member that is supported on said base; a support member; fastener means for attaching the support member over the circular shaped base and for attaching the annular collar member with the circular shaped base; said annular collar member depending downwardly from the circular shaped base so as to fit into the chimney or flue; a top supported, by means of said support member, on said annular shaped mesh member; said chimney or flue having an uppermost substantially flat rest surface; means supported from an outer surface of said annular collar member below said base and forming a ledge for support of said collar member from said chimney or flue; said ledge resting on the uppermost substantially flat rest surface of the chimney or flue and spacing the bottom edge of the circular shaped base and said annular shaped mesh member a predetermined non-zero distance above the ledge; said means forming a ledge having at least one cut-out in said annular collar member to form the ledge, the opening of the cut-out permitting gas flow therethrough when the cap assembly is installed in the chimney.