US2022268017A1PendingUtilityA1

Fire block component and assembly

Assignee: CALIFORNIA EXPANDED METAL PRODUCTS COPriority: Feb 10, 2021Filed: Feb 10, 2022Published: Aug 25, 2022
Est. expiryFeb 10, 2041(~14.5 yrs left)· nominal 20-yr term from priority
E04B 1/948
52
PatentIndex Score
0
Cited by
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References
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Claims

Abstract

A fire-resistant strip for providing a fire-rated seal to a construction gap or joint includes an intumescent material layer configured to expand in response to a temperature above a threshold temperature and at least one heat resistant material layer made of or comprising a material having a melting temperature above the threshold temperature, such as a fiberglass material. The at least one heat resistant material layer covers the intumescent material layer. At least one adhesive layer is configured to secure the fire-resistant strip to a building structure or structures defining the construction gap or joint.

Claims

exact text as granted — not AI-modified
1 . A fire-resistant strip for providing a fire-rated seal to a construction gap or joint, comprising:
 an intumescent material layer configured to expand in response to a temperature above an expansion threshold temperature;   at least one heat resistant material layer made of or comprising a material having a melting temperature above the expansion threshold temperature of the intumescent material, wherein the at least one heat resistant material layer covers the intumescent material layer;   at least one adhesive layer configured to secure the fire-resistant strip to a building structure or structures defining the construction gap or joint.   
     
     
         2 . The fire-resistant strip of  claim 1 , wherein the at least one heat resistant material layer comprises a first heat resistant material layer and a second heat resistant material layer. 
     
     
         3 . The fire-resistant strip of  claim 2 , wherein the intumescent material layer is positioned between the first heat resistant material layer and the second heat resistant material layer. 
     
     
         4 . The fire-resistant strip of  claim 1 , wherein the at least one heat resistant material layer comprises a woven fiberglass material, a fiberglass mat, a fiberglass chop strand mat material, or a foil material. 
     
     
         5 . The fire-resistant strip of  claim 1 , further comprising a cover layer made of or comprising foil, vinyl or fiberglass. 
     
     
         6 . The fire-resistant strip of  claim 5 , wherein the cover layer and/or the at least one heat resistant material layer is wider than the intumescent layer to form side portions of the fire-resistant strip. 
     
     
         7 . The fire-resistant strip of  claim 6 , wherein the side portions include adhesive. 
     
     
         8 . The fire-resistant strip of  claim 5 , wherein the intumescent material layer is positioned between the cover layer and the at least one heat resistant material layer. 
     
     
         9 . The fire-resistant strip of  claim 1 , wherein the adhesive layer is a double-sided foam or adhesive film tape. 
     
     
         10 . The fire-resistant strip of  claim 1 , wherein the at least one heat resistant material layer is wider than the intumescent layer to form side portions of the fire-resistant strip. 
     
     
         11 . The fire-resistant strip of  claim 1 , wherein the at least one adhesive layer has a width that is equal to or less than a width of one or both of the intumescent material layer and the at least one heat resistant material. 
     
     
         12 . The fire-resistant strip of  claim 11 , wherein the width of the at least one adhesive layer is equal to or less than two-thirds of the width of one or both of the intumescent material layer and the at least one heat resistant material. 
     
     
         13 . The fire-resistant strip of  claim 11 , wherein the width of the at least one adhesive layer is equal to or less than one-half of the width of one or both of the intumescent material layer and the at least one heat resistant material. 
     
     
         14 . A fire-resistant strip for providing a fire-rated seal to a construction gap or joint, comprising:
 an adhesive layer;   an intumescent strip comprising an intumescent material that expands in response to a temperature above a threshold temperature;   wherein the adhesive layer comprises adhesive portions located on each side of the intumescent strip;   wherein the intumescent strip does not include an adhesive layer such that the intumescent strip is not directly attached to a building structure to which the fire block tape component is attached.   
     
     
         15 . The fire-resistant strip of  claim 14 , further comprising a cover layer, wherein the cover layer is slightly elastic or stretchable to be able to stretch in response to expansion of the intumescent strip. 
     
     
         16 . The fire-resistant strip of  claim 15 , wherein the cover layer has heat resistant properties. 
     
     
         17 . The fire-resistant strip of  claim 15 , wherein the cover layer is a paintable material. 
     
     
         18 . The fire-resistant strip of  claim 15 , wherein the cover layer includes or is made from, or an additional layer is provided that includes or is made from, a material that can properly receive joint compound without cracking the joint compound. 
     
     
         19 . The fire-resistant strip of  claim 14 , further comprising a foam strip positioned side-by-side with the intumescent strip. 
     
     
         20 . The fire-resistant strip of  claim 19 , wherein the foam strip comprises an open or closed cell material. 
     
     
         21 . The fire-resistant strip of  claim 15 , wherein the cover layer is or comprises a fiberglass mat. 
     
     
         22 . The fire-resistant strip of  claim 14 , further comprising a foil layer backing the intumescent strip. 
     
     
         23 - 30 . (canceled)

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