Patent ID: 8793946

Claim:
A curtain wall construction having a means for firestopping thereover comprising: A. a curtain wall assembly comprising: (1) a plurality of vertical framing members spatially disposed from one another and extending generally vertically; (2) a plurality of horizontal framing members spatially disposed from one another and extending generally horizontally between said vertical framing members; (3) a plurality of curtain wall panels extending between said vertical framing members and between said horizontal framing members; B. a firestopping means cooperatively positioned immediately adjacent said curtain wall assembly for facilitating firestopping thereover responsive to exposure to fire conditions, said firestopping means being attached directly to said curtain wall assembly and extendable to a position deployed between said vertical framing members and along said horizontal framing members at locations extending over and immediately adjacent said curtain wall panels positioned extending therebetween, said firestopping means comprising: (1) a retaining housing positioned adjacent said curtain wall assembly, said retaining housing including: (a) a safing angle member positioned adjacent to said curtain wall assembly and attached directly thereto; (b) a cover member detachably secured to said safing angle member and defining therebetween a retaining chamber means; (c) a releasable attachment means detachably securing said cover member with respect to said safing angle member, said releasable attachment means being responsive to exposure to fire conditions to disengage said cover member from said safing angle member; and (2) a curtain blanket including a secured portion thereof secured with respect to said safing angle member and also including a free portion thereof, said curtain blanket being flexible and fire-resistant and positionable collapsed in a stored position within said retaining chamber means of said retaining housing, said releasable attachment means being responsive to fire conditions to disengage said cover member from attachment with respect to said safing angle member to allow said free portion of said curtain blanket to deploy by exiting said retaining chamber means and moving downwardly to a deployed position extending at least partially across said curtain wall panel located immediately thereadjacent for firestopping thereover.