Patent ID: RE44033

Claim:
An intumescent firestopping apparatus for selectively sealing, responsive to fire, of an opening in a construction barrier having penetrating members extending therethrough comprising: A. a sleeve means securable to the construction barrier at a position extending through the opening defined therein for defining an access corridor means extending completely through the barrier, said sleeve means including; (1) an upper wall member capable of extending completely through the barrier; (2) a lower wall member capable of extending completely through the barrier spatially disposed below said upper wall member to facilitate defining of said access corridor means therebetween; (3) a first side wall member capable of extending completely through the barrier and extending from said upper wall member downwardly to said lower wall member; (4) a second side wall member capable of extending completely through the barrier and extending from said upper wall member downwardly to said lower wall member at a position spatially disposed from said first side wall member to facilitate defining of said access corridor means therebetween; B. a lower intumescent pad means positioned within said access corridor means extending at least partially along said lower wall member; and C. an upper intumescent pad means extending at least partially along said upper wall member, said upper intumescent pad means including an upper central pad section being flexibly resilient and extending downwardly from said upper wall means toward said lower intumescent pad means therebelow to define a confinement area therebetween capable for holding of penetrating members extending therethrough by exerting force thereon.