Patent ID: 7523590
Filing Date: 2009-04-28
Classification: A62C,F16L

Abstract:
1. An apparatus comprising: a sleeve adapted to be positioned so as to pass through a construction barrier, said sleeve providing an access corridor though the construction barrier, first and second intumescent pads located within said access corridor and extending at least partially along said access corridor to create a confinement area therebetween for creating a seal against a penetrating member passing though the confinement area in response to heat, at least one of said intumescent pads having at least a portion thereof that is movable toward the other of said intumescent pads, said sleeve including opposite ends, said apparatus further comprising a protective skirt located at least at one of said opposite ends, said protective skirt including of a plurality of loops extending downwardly from one of said first or second intumescent pads.