Fire stop frame assembly
First Claim
1. A fire stop assembly for bordering a conduit access through a building separation, said fire stop assembly having a rigid body portion with an access opening through said rigid body portion, said access opening being adjustably closed by a fire block arrangement to define a conduit fitting opening forming part of said access opening;
- said fire block arrangement comprising a lining of intumsecent material adjacent said conduit fitting opening and a series of non intumsecent flame retardant members cooperating with said lining of intumsecent material to close said access opening about said conduit fitting opening.
4 Assignments
0 Petitions
Accused Products
Abstract
A fire stop assembly for bordering a conduit access through a building separation, includes a rigid body portion with an access opening with the access opening being adjustably closed to define a conduit fitting opening within the access opening. The remainder of the access opening is adjustably closed by a fire block arrangement comprising a lining of intumescent material on opposite sides of a conduit fitting opening and a series of non intumescent flame retardant members cooperating with the lining of intumescent material to close the remainder of said access opening. Preferably the non-intumescent flame retardant members are a series of plastic sleeves filled with mineral wool or other suitable insulation material. The sleeves and fill material are removable to adjust the opening size. The sleeves serve to protect the insulation material during the normal life of the fire stop assembly until a fire condition occurs.
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Citations
18 Claims
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1. A fire stop assembly for bordering a conduit access through a building separation, said fire stop assembly having a rigid body portion with an access opening through said rigid body portion, said access opening being adjustably closed by a fire block arrangement to define a conduit fitting opening forming part of said access opening;
- said fire block arrangement comprising a lining of intumsecent material adjacent said conduit fitting opening and a series of non intumsecent flame retardant members cooperating with said lining of intumsecent material to close said access opening about said conduit fitting opening.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
Specification