Fire barrier device

A method of providing a fire and smoke barrier for penetrations in walls, floors, partitions and ceilings comprising the steps of:

• (a) positioning a sleeve of intumescent material in the interior of a conduit to line said conduit, by affixing said sleeve to the interior wall of said conduit;
• (b) positioning said conduit in the interior of said penetration to line said penetration and affixing said conduit to the wall of said penetration;
• and
• (c) positioning an end cap at at least one end of said sleeve to seal said penetration against the passage of flames, smoke and gas, said end cap being capable of being penetrated by pipes or cables passing through said sleeve and conforming around said pipes or cables.

A fire barrier device for providing fire and smoke stoppage in penetrations through walls, floors, partitions and ceilings comprising:

• (a) a sleeve of intumescent sheet material lining the interior of said penetration and affixed to the wall of said penetration, said intumescent sheet material operable to expand when said penetration is subjected to elevated temperatures and substantially fill said lined penetration;
• said intumescent sheet material being affixed to said wall of said penetration by mechanical locking means comprising ribs oriented on the outer surface of said sleeve such that when said sleeve is pressed into said penetration said ribs deform and conform to said wall of said penetration to hold said sleeve in place in said penetration by the force of friction, said ribs being constructed from a rubbery material having a Shore A durometer of about 40-70;
• and
• (b) at least one end cap positioned at one end of said sleeve, said end cap capable of being penetrated by pipes or cables passing through said lined penetration and conforming around said pipes or cables and said end cap capable of sealing said penetration against the passage of flames, smoke and gases through said penetration from one end to the other.

A fire barrier device for providing fire and smoke stoppage in penetrations through walls, floors, partitions and ceilings comprising:

• (a) a sleeve of intumescent sheet material lining the interior of said penetration and affixed to the wall of said penetration, and at least one intumescent partition placed within said lined penetration to divide said penetration into substantially equal areas, said intumescent partition being rectangular in shape and having one pair of tabs at one end thereof such that said partition is T-shaped, said tabs extending outwardly a distance equal to the thickness of said sleeve, and wherein said sleeve is provided with at least one pair of slots at one end thereof such that said tabs of said partition fit therein;
• said intumescent material operable to expand when said penetration is subjected to elevated temperatures and substantially fill said lined penetration;
• and
• (b) at least one end cap positioned at one end of said sleeve, said end cap capable of being penetrated by pipes or cables passing through said lined penetration and conforming around said pipes or cables and said end cap capable of sealing said penetration against the passage of flames, smoke and gases through said penetration from one end to the other.

A fire barrier device for providing fire and smoke stoppage in penetrations through walls, floors, partitions and ceilings comprising:

• (a) a sleeve of intumescent sheet material lining the interior of said penetration and affixed to the wall of said penetration, said intumescent material operable to expand when said penetration is subjected to elevated temperatures and substantially fill said lined penetration;
• (b) at least one end cap positioned at one end of said sleeve, said end cap capable of being penetrated by pipes or cables passing through said lined penetration and conforming around said pipes or cables and said end cap capable of sealing said penetration against the passage of flames, smoke and gases through said penetration from one end to the other;
• and
• (c) a riser/sidewall attached at one end of said sleeve so as to project from and be held around the periphery of said penetration, said riser/sidewall serving as a splash guard to prevent water from entering said penetration.

A method of providing a fire and smoke barrier for penetrations in walls, floors, partitions and ceilings comprising the steps of:

• (a) positioning a sleeve of intumescent sheet material in the interior of said penetration to line said penetration, said sleeve occupying only a minor portion of said penetration, and said intumescent material operable to expand when said penetration is subjected to elevated temperatures and substantially fill said lined penetration;
• (b) affixing said sleeve to the wall of said penetration;
• and
• (c) positioning an end cap at at least one end of said sleeve to seal said penetration against the passage of flames, smoke and gas, said end cap being capable of being penetrated by pipes or cables passing through said lined penetration and conforming around said pipes or cables;
• said sleeve and said end cap being capable of allowing any number and most sizes of pipes or cables to be placed, removed, or replaced without disruption of said intumescent sleeve material, and said fire barrier device providing a wide clearance between said pipes or cables and said intumescent sleeve.