In situ molded thermal barriers
AssigneeW.R. Grace & Co.-Conn.
InventorsMichael D. Morgan, Xiudong Sun, Laura A. Tennenhouse, Robert A. Wiercinski, Benita Dair, Antonio J. Aldykiewicz, Jr., Leon Bablouzian, Lawrence Shapiro, William J. Hurley, Jr.
Life of this patent
Estimating the term…
Abstract
Methods, systems, and devices for installing barriers in openings of gaps in or between structures such as walls, ceilings, and floors are described herein. At least one barrier molding bag is positioned in the hole or gap, and a flowable firestop material that is preferably operative to cure or harden, such as a hydratable cementitious slurry, is introduced into the bag to create a barrier in the hole or gap.
Claims11
A device for making a barrier against spread of fire across an opening at the top of an interior wall of a building, comprising, in combination;
- (i) a longitudinally extending track having a generally elongate body and an “H”-shaped cross-sectional profile, said track further having an upwardly extending pair of flanges and a downwardly extending pair of flanges defining, respectively, upper and lower longitudinally extending channels, said track further having a longitudinally extending separating wall member separating said upper and lower channels, said wall member having a plurality of openings located periodically along its longitudinal extension;
- and (ii) a molding barrier bag operative to be filled with a firestop material and positioned in and along the longitudinal extent of said upper channel, said bag having crinkles or pleats operative as compartments to permit expansion of said bag when filled with firestop material and further having a plurality of fitments extending through said openings of said wall member operative to admit firestop material to the interior of said bag.
A method for making a barrier against the spread of fire across a surface of a building comprising, in combination:
- (i) a longitudinally extending track having a generally elongate body and an “H”-shaped cross-section profile, said track further having an upwardly extending pair of flanges and a downwardly extending pair of flanges defining, respectively, upper and lower longitudinally extending channels, said track further having a longitudinally extending separating wall member separating said upper and lower channels, said wall member having a plurality of openings located periodically along its longitudinal extension;
- and (ii) a molding barrier bag operative to be filled with a firestop material and positioned in and along the longitudinal extent of said upper channel, said bag having crinkles or pleats operative as compartments to permit expansion of said bag when filled with firestop material and further having a plurality of fitments extending through said openings of said wall member operative to admit firestop material to the interior of said bag;
- wherein said longitudinally extending track is attached to a building surface in a manner such that said upper channel of said track containing said molding barrier bag is positioned towards said building surface, and thereafter introducing firestop material into said bag through said fitments to expand said bag and provide said barrier.
Dependencies are inferred from the claim text.