Patent ID: 7694474
Filing Date: 2010-04-13
Classification: A62C,E03D,F16L

Abstract:
1. An improved firestopping means being responsive to heating thereof for selectively sealing a vertical opening in a floor assembly having a drain pipe extending upwardly therewithin, the drain pipe being attachable to a water closet by a water closet flange assembly which includes a water closet flange means attachable to a water closet and a drain pipe engaging means attachable to the drain pipe, said improved firestopping means comprising: A. an outer securement section is positioned immediately above a generally horizontally extending upwardly facing surface of the floor assembly immediately surrounding the vertical opening beneath the water closet flange means of the water closet flange assembly for retaining said improved firestopping means therebetween; and B. an inner intumescent section attached with respect to said outer securement section and extending radially inwardly thereunder along and in abutting contact with the generally horizontally extending upwardly facing surface of the floor assembly surrounding the vertical opening therein to facilitate sealing downwardly thereinto responsive to heating thereof, said inner intumescent section being affixed in position extending generally horizontally below said outer securement section and above the generally horizontally extending upwardly facing surface of the floor assembly immediately surrounding the vertical opening therebelow responsive to engagement of the water closet flange assembly.