Joint seal with body extensions

Abstract

A system for creating a durable water-resistant seal in the joint between adjacent panels. A durable foam-based expansion seal system provides contacting surfaces which are not planar by inclusion of extensions or second bodies and which therefore provide localized areas of higher density.

I claim: 
     
         1 . A joint seal system, comprising:
 a main body,
 the main body being resiliently compressible, 
 the main body having
 a main body first surface, 
 a main body second surface,
 the main body first surface opposite the main body second surface; 
 
 a main body bottom surface, 
 a main body top surface, 
 a main body front surface, 
 a main body rear surface, 
 a main body height from the main body bottom surface to the main body top surface, 
 a main body width from the main body first surface to the main body second surface, and 
 a main body length along the main body first surface from the main body front surface to the main body rear surface, 
 
   a second body,
 the second body having
 a second body first surface, 
 a second body second surface,
 the second body first surface opposite the second body second surface, 
 
 a second body bottom surface, 
 a second body top surface, 
 a second body front surface, 
 a second body rear surface, 
 a second body height from the second body bottom surface to the second body top surface, 
 a second body width from the second body first surface to the second body second surface, and 
 a second body length along the second body first surface from the second body front surface to the second body rear surface, 
 
 the second body adhered at the second body first surface to the main body at the main body first surface, 
 the second body height less than the main body height, 
 the second body width not exceeding one third the main body width, and 
 the second body length equal to the main body length, 
   a third body,
 the third body having 
 a third body first surface, 
 a third body second surface,
 the third body first surface opposite the third body second surface, 
 
 a third body bottom surface, 
 a third body top surface, 
 a third body front surface, 
 a third body rear surface 
 a third body height from the third body bottom surface to the third body top surface, 
 a third body width from the third body first surface to the third body second surface, and 
 a third body length along the third body first surface from the third body front surface to 
 the third body rear surface, 
 the third body adhered at the third body second surface to the main body at the main body second surface, 
 the third body height less than the main body height, 
 the third body width not exceeding one third the main body width, and 
 the third body length equal to the main body length. 
   
     
     
         2 . The joint seal system of  claim 1 , further comprising
 a packaging body,
 the packaging body having
 a packaging body height, 
 a packaging body first surface, and 
 a packaging body length, 
 
 the packaging body height nearly equal to main body height and 
 the packaging body length equal to the main body length, 
 the packaging body first surface adapted to contact the main body first surface and the second body second surface. 
   
     
     
         3 . The joint seal system of  claim 2 , further comprising
 a second packaging body,   the second packaging body having
 a second packaging body height, 
 a second packaging body first surface, and 
 a second packaging body length, 
   the second packaging body height nearly equal to main body height and   the second packaging body length equal to the main body length,   the second packaging body first surface adapted to contact the main body second surface and the third body first surface.   
     
     
         4 . The joint seal system of  claim 1 , wherein
 the second body is of a shape selected from a triangular prism, a rectangular prism, a polygonal prism, and a cylindrical segment.   
     
     
         5 . The joint seal system of  claim 1 , wherein
 the main body front surface, second body front surface, third body front surface, and a packaging body front surface are co-planar.   
     
     
         6 . The joint seal system of  claim 4 , wherein
 the main body has a main body density and the second body has a second body density greater than the main body density.   
     
     
         7 . The joint seal system of  claim 6 , wherein
 the main body includes internal voids in communication with at least one of the main body first surface, the main body second surface, the main body bottom surface, the main body top surface, the main body front surface, and the main body rear surface, at least one quarter of the internal voids having a fire retardant material therein.   
     
     
         8 . The joint seal system of  claim 4 , wherein
 the main body has a main body compressibility and the second body has a second body compressibility less than the main body compressibility.   
     
     
         9 . The joint seal system of  claim 1 , wherein the second body includes a fire retardant material. 
     
     
         10 . The joint seal system of  claim 1 , wherein the second body is composed of a low durometer closed cell foam. 
     
     
         11 . The joint seal system of  claim 1 , wherein the main body has a main body compressibility, the second body has a second body compressibility, and the third body has a third body compressibility, the main body compressibility less than the second body compressibility, and the main body compressibility less than the third body compressibility. 
     
     
         12 . The joint seal system of  claim 1 , wherein
 the second body includes an intumescent, and   the third body includes an intumescent.   
     
     
         13 . The joint seal system of  claim 1 , wherein the main body comprises:
 a top layer, a central layer, and a bottom layer, the central layer having a central layer height, the central layer height equal to the greater of second body height and the third body height, the second body adhered to the main body at the central layer, the third body adhered to the main body at the central layer, the central layer having a lower permeability than the top layer.   
     
     
         14 . The joint seal system of  claim 14  wherein the central layer has a central interior layer width less than the main body width. 
     
     
         15 . The joint seal system of  claim 1  wherein the second body is an ovoid prism. 
     
     
         16 . The joint seal system of  claim 1  wherein the second body includes a first lamination body and a second lamination body. 
     
     
         17 . The joint seal system of  claim 1  wherein the packaging body is a cylindrical segment. 
     
     
         18 . The joint seal system of  claim 1  wherein the second body is formed as an extension of the main body and the third body is formed as an extension of the main body. 
     
     
         19 . The joint seal system of  claim 11 , wherein second body is formed as an extension of the main body and includes a rigid additive and the third body is formed as an extension of the main body and includes a rigid additive. 
     
     
         20 . A joint seal system, comprising:
 a body of resiliently compressible material having a main body, a second body and a third body,
 the main body having
 a main body first surface, 
 a main body second surface,
 the main body first surface opposite the main body second surface; 
 
 a main body bottom surface, 
 a main body top surface, 
 a main body front surface, 
 a main body rear surface, 
 a main body height from the main body bottom surface to the main body top surface, 
 a main body width from the main body first surface to the main body second surface, and 
 a main body length along the main body first surface from the main body front surface to the main body rear surface, 
 
 the second body having
 a second body second surface, 
 a second body bottom surface, 
 a second body top surface, 
 a second body front surface, 
 a second body rear surface, 
 a second body height from the second body bottom surface to the second body top surface, 
 a second body width from the main body first surface to the second body second surface, and 
 
 the second body formed at the main body first surface, 
 the second body height less than the main body height, 
 the second body width not exceeding one third the main body width, and 
 the second body length equal to the main body length, 
 the third body having 
 a third body first surface, 
 a third body bottom surface, 
 a third body top surface, 
 a third body front surface, 
 a third body rear surface, 
 a third body height from the third body bottom surface to the third body top surface, 
 a third body width from the third body first surface to the main body second surface, and 
 a third body length along the third body first surface from the third body front surface to the third body rear surface, 
 the third body formed at the main body second surface, 
 the third body height less than the main body height, 
 the third body width not exceeding one third the main body width, and 
 the third body length equal to the main body length, 
   a packaging body,
 the packaging body having
 a packaging body height, 
 a packaging body first surface, and 
 a packaging body length, 
 
 the packaging body height nearly equal to main body height and 
 the packaging body length equal to the main body length, 
 the packaging body first surface adapted to contact the main body first surface and the second body second surface.