Expansion and seismic joint covers

Abstract

A seismic/expansion joint seal and cover comprising a cover plate, and a central spine extending downwardly from said cover plate. At least one layer of a resilient compressible foam sealant is provided on each side of the spine.

What is claimed is:  
     
         1 . A seismic/expansion joint seal and cover comprising: 
 a cover plate;    a central spine extending downwardly from said cover plate; and    at least one layer of a resilient compressible foam sealant on each side of said spine.    
     
     
         2 . A joint seal and cover as claimed in  claim 1 , wherein said cover is detachable from said spine.  
     
     
         3 . A joint seal and cover as claimed in  claim 2 , wherein said cover is screwed to said spine.  
     
     
         4 . A joint seal and cover as claimed in  claim 3 , wherein said spine is composed of two mirror-image generally C-shaped members, each of which has a lower base flange, an upper base flange into which said cover is screwed, and a flat web extending between the flanges, against which the said foam sealant is positioned.  
     
     
         5 . A joint seal and cover as claimed in  claim 4 , wherein said upper flange of each said C-shaped member is the laterally extending portion of a right angle member that is affixable to said web at selected heights.  
     
     
         6 . A joint seal and cover as claimed in  claim 4 , wherein said C-shaped members are separated by a strip of relatively incompressible foam.  
     
     
         7 . A joint seal and cover as claimed in  claim 1 , wherein said compressible foam layer has a low modulus elastomeric sealant applied to the top surface thereof.  
     
     
         8 . A joint seal and cover are claimed in  claim 2 , wherein a bead of sealant is applied between said spine and said cover.  
     
     
         9 . A joint seal and cover as claimed in  claim 5 , wherein said C-shaped members are separated by a strip of incompressible foam.  
     
     
         10 . A joint seal and cover as claimed in  claim 2 , wherein said compressible foam layer has a low modulus elastomeric sealant applied to the top surface thereof.  
     
     
         11 . A joint seal and cover as claimed in  claim 4 , wherein said compressible foam layer has a low modulus elastomeric sealant applied to the top surface thereof.  
     
     
         12 . A joint seal and cover as claimed in  claim 6 , wherein said compressible foam layer has a low modulus elastomeric sealant applied to the top surface thereof.  
     
     
         13 . A joint seal and cover as claimed in  claim 3 , wherein a bead of sealant is applied between said spine and said cover.  
     
     
         14 . A joint seal and cover as claimed in  claim 4 , wherein a bead of sealant is applied between said spine and said cover.  
     
     
         15 . A joint seal and cover as claimed in  claim 5 , wherein a bead of sealant is applied between said spine and said cover.  
     
     
         16 . A joint seal and cover as claimed in  claim 6 , wherein a bead of sealant is applied between said spine and said cover.  
     
     
         17 . A joint seal and cover as claimed in  claim 7 , wherein a bead of sealant is applied between said spine and said cover.