Gasket sealing arrangements

Abstract

An expansion joint includes a foam strip having first and second lateral side surfaces extending axially outward to an outer edge surface, and an elongated gasket having a laterally expandable portion adhered to the outer edge surface of the foam strip, with the laterally expandable portion extending between first and second lateral end portions. The first and second lateral end portions each define at least one of a laterally outward facing bonding surface and an axially inward facing bonding surface, with the at least one bonding surface being spaced apart axially outward from the corresponding one of the first and second lateral side surfaces of the foam strip.

1 .- 92 . (canceled) 
     
     
         93 . An expansion joint comprising:
 a foam strip having first and second lateral side surfaces extending axially outward to an outer edge surface; and   an elongated gasket having a laterally expandable portion adhered to the outer edge surface of the foam strip, the laterally expandable portion extending between first and second lateral end portions each defining at least one of a laterally outward facing bonding surface and an axially inward facing bonding surface, the at least one bonding surface being spaced apart axially outward from the corresponding one of the first and second lateral side surfaces of the foam strip.   
     
     
         94 . The expansion joint of  claim 93 , wherein the outer edge surface of the foam strip is a substantially planar surface. 
     
     
         95 . The expansion joint of  claim 93 , wherein the outer edge surface of the foam strip is contoured to be closely received in a plurality of corrugations of the laterally expandable portion of the elongated gasket. 
     
     
         96 . The expansion joint of  claim 93 , wherein the laterally expandable portion of the elongated gasket includes a plurality of V-shaped corrugations. 
     
     
         97 . The expansion joint of  claim 93 , wherein the laterally expandable portion of the elongated gasket includes a plurality of inverted U-shaped corrugations. 
     
     
         98 . The expansion joint of  claim 93 , wherein the foam strip comprises at least one of polyurethane, polyethylene, acrylics, silicone, polyester, and polyether foam materials. 
     
     
         99 . The expansion joint of  claim 93 , wherein at least one of the first and second lateral side surfaces of the foam strip comprises a pressure sensitive adhesive. 
     
     
         100 . The expansion joint of  claim 93 , wherein the at least one bonding surface of the first and second lateral end portions defines a recessed portion for receiving a sealant. 
     
     
         101 . The expansion joint of  claim 100 , wherein the recessed portion includes a plurality of grooves. 
     
     
         102 . The expansion joint of  claim 93 , wherein the first and second lateral end portions of the elongated gasket include laterally outward extending flange portions defining axially inward facing bonding surfaces. 
     
     
         103 . The expansion joint of  claim 93 , wherein the elongated gasket has an axial height of between about ¼ inch and about 1 ½ inches. 
     
     
         104 . The expansion joint of  claim 93 , wherein the elongated gasket has a nominal lateral width selected to accommodate expansion joints having width ranges from about 75% smaller to about 100% larger than the nominal width of the expansion joint. 
     
     
         105 . The expansion joint of  claim 93 , wherein the laterally expandable portion has a wall thickness of between about 0.03 inches and about ⅛ inches. 
     
     
         106 . The expansion joint of  claim 93 , wherein the laterally expandable portion includes a plurality of corrugations each having a lateral width of between about ¼ inch and about 1 1/2  inches. 
     
     
         107 . The expansion joint of  claim 93 , wherein the laterally expandable portion is adhered to the outer edge surface of the foam strip at a plurality of laterally spaced locations. 
     
     
         108 . The expansion joint of  claim 93 , wherein the at least one bonding surface of the corresponding ones of the first and second lateral end portions includes a pressure sensitive adhesive. 
     
     
         109 . The expansion joint of  claim 93 , wherein the laterally expandable portion includes downward projections received in corresponding channels in the outer edge surface of the foam strip. 
     
     
         110 . An architectural joint system comprising:
 a first substrate having a lateral end surface extending axially outward to an outer surface;   a second substrate having a lateral end surface facing the lateral end surface of the first substrate and extending axially outward to an outer surface; and   an expansion joint compressed between the first substrate and the second substrate, the expansion joint comprising:
 a foam strip having first and second lateral side surfaces extending axially outward to an outer edge surface recessed from the outer surfaces of the first and second substrates, the first lateral side surface engaging the lateral end surface of the first substrate and the second lateral side surface engaging the lateral end surface of the second substrate; and 
 an elongated gasket having a laterally expandable portion adhered to the outer edge surface of the foam strip and extending between first and second lateral end portions, the first lateral end portion being bonded to the first substrate at a location spaced apart axially outward from the first lateral side surface and the second lateral end portion being bonded to the second substrate at a location spaced apart axially outward from the second lateral side surface. 
   
     
     
         111 . The system of  claim 110 , wherein the first and second lateral end portions of the elongated gasket are bonded to the lateral surfaces of the first and second substrates. 
     
     
         112 . A method of installing an expansion joint between first and second substrates having opposed lateral end surfaces extending axially outward to outer surfaces, the method comprising:
 installing a pre-compressed foam strip between the first and second substrates, such that a first lateral side surface of the foam strip engages the lateral end surface of the first substrate, a second lateral side surface of the foam strip engages the lateral end surface of the second substrate, and an outer edge surface of the foam strip is recessed from the outer surfaces of the first and second substrates;   providing an elongated gasket having a laterally expandable portion extending between first and second lateral end portions;   adhering the laterally expandable portion of the elongated gasket to the outer edge surface of the foam strip;   adhering the first lateral end portion of the elongated gasket to the first substrate; and   adhering the second lateral end portion of the elongated gasket to the second substrate.