Expansion and seismic joint covers

Abstract

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

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 and cover as claimed in  claim 1 , wherein said cover is detachable from said spine.  
   
   
       3 . A joint seal and cover a 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 said foam sealant is positioned.  
   
   
       5 . A joint seal and cover as claimed in  claim 4 , wherein said C-shaped members are separated by a strip of incompressible foam.  
   
   
       6 . A joint seal and cover as claimed in  claim 2 , wherein a bead of sealant is applied between said spine and said cover.  
   
   
       7 . A joint seal and cover as claimed in  claim 3 , wherein a bead of sealant is applied between said spine and said cover.  
   
   
       8 . A joint seal and cover as claimed in  claim 4 , 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 a bead of sealant is applied between said spine and said cover.  
   
   
       10 . A joint seal and cover as claimed in  claim 9 , wherein said layer of resilient compressible foam on each side of said spine is discontinuous, and a waterproof membrane is provided above said spine, beneath said cover.  
   
   
       11 . A joint seal and cover as claimed in  claim 10 , including clips for connecting the edges of said waterproof membrane to the edges of a joint.  
   
   
       12 . A joint seal and cover as claimed in  claim 11 , wherein said resilient compressible foam sealant is provided in discrete segments on each side of said spine, separated by spaces up to twice the length of said discrete segments.  
   
   
       13 . A joint seal and cover as claimed in  claim 12 , wherein said membrane is a folded bellows type membrane.