Intumescent firestopping apparatus

Details Intumescent firestopping apparatus Intumescent firestopping apparatus

A - Human Necessities

62

C

A62C 3/16 (2006.01) A62C 2/06 (2006.01) C09K 21/00 (2006.01) F16L 5/04 (2006.01) H02G 3/04 (2006.01)

Patent

CA 2427515

An intumescent firestopping apparatus used in poke-through applications for selectively sealing an opening through a construction barrier such as a wall, floor or ceiling having cables or other penetrating members extending therethrough. The apparatus effectively seals this barrier responsive to a fire to prevent unwanted transmission of fire through conventional construction barrier areas. The apparatus includes a sleeve with two intumescent pads positioned therein. At least one of the pads has an arcuate curved central section to be biased against the other intumescent pad to define therebetween a confinement area for holding of cables centrally located therein in a dynamically adjustable sealing throat defined therebetween. These pads can be variously mounted with respect to the adjacent wall structures and one or both of the pads can be arched toward the other pad to facilitate defining of the dynamic throat for receiving cables extending therethrough.

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