Rigid repair wrap including a laminate disposed laterally within the repair wrap

Abstract

A repair wrap for repairing or strengthening an item. The repair wrap includes a fabric, where the fabric includes one or more fibers. The repair wrap also includes a film disposed laterally within the fabric. The repair wrap further includes a hardening material disposed in the fabric. The fabric is configured to be wrapped around a portion of an item. Curing the hardening material is configured to form a shell about the portion of the item.

What is claimed is: 
     
         1 . A repair wrap for repairing or strengthening an item, the repair wrap comprising:
 a fabric, wherein the fabric includes one or more fibers;   a film disposed laterally within the fabric; and   a hardening material disposed in the fabric;   wherein the fabric is configured to be wrapped around a portion of an item; and   wherein curing the hardening material is configured to form a shell about the portion of the item.   
     
     
         2 . The repair wrap of  claim 1 , wherein the hardening material includes: a resin. 
     
     
         3 . The repair wrap of  claim 1 , wherein the one or more fibers include: fiberglass. 
     
     
         4 . The repair wrap of  claim 1 , wherein the one or more fibers include at least one of:
 carbon fiber;   Kevlar;   aramid fibers;   para-aramid fibers;   basalt fibers;   natural fibers;   polyester; or   nylon.   
     
     
         5 . The repair wrap of  claim 1 , wherein the thickness of the fabric is between 180 grams per square meter and 450 grams per square meter. 
     
     
         6 . The repair wrap of  claim 1 , wherein the film includes a polyurethane film. 
     
     
         7 . The repair wrap of  claim 1 , wherein the one or more fibers are knit to form the fabric. 
     
     
         8 . A repair wrap for repairing or strengthening an item, the repair wrap comprising:
 a fabric, wherein the fabric includes:
 one or more fibers; and 
 the one or more fibers are knit to form the fabric; 
   a film disposed laterally within the fabric; and   a resin disposed in the fabric, wherein the resin is:
 water activated; and 
 configured to cure in exposure to air; 
   wherein the fabric is configured to be wrapped around a portion of an item; and   wherein curing the hardening is configured to form a shell about the portion of the item.   
     
     
         9 . The repair wrap of  claim 8 , wherein the resin includes:
 a two part epoxy.   
     
     
         10 . The repair wrap of  claim 8 , wherein the resin includes:
 methylene diphenyl diisocyanate.   
     
     
         11 . The repair wrap of  claim 8 , wherein the resin includes an additive disposed in the resin. 
     
     
         12 . The repair wrap of  claim 11 , wherein the additive includes at least one of:
 plastic;   rubber;   sand;   wood particles;   sawdust;   fibrous material; or   polyester fibrous material.   
     
     
         13 . The repair wrap of  claim 8 , wherein the item comprises at least one of:
 wood;   metal;   glass;   plastic;   rubber;   composites;   fiberglass;   ceramic; or   concrete.   
     
     
         14 . The repair wrap of  claim 8 , wherein ratio of resin to fabric by weight is 29 percent and 44 percent. 
     
     
         15 . The repair wrap of  claim 14 , wherein ratio of resin to fabric by weight is approximately 36.5 percent. 
     
     
         16 . A repair wrap for repairing or strengthening an item, the repair wrap comprising:
 a fabric, wherein the fabric includes:
 one or more fibers; and 
 the one or more fibers are knit to form the fabric; 
   a polyurethane film disposed laterally within the fabric; and   a resin disposed in the fabric, wherein the resin is:
 disposed on either side of the polyurethane film; 
 water activated; and 
 configured to cure in exposure to air; 
   wherein the fabric is configured to be wrapped around a portion of an item; and   wherein curing the hardening is configured to form a shell about the portion of the item.   
     
     
         17 . The repair wrap of  claim 16 , wherein the gauge of the knit fabric is between 11 stitches per inch and 17 stitches per inch. 
     
     
         18 . The repair wrap of  claim 17 , wherein the gauge of the knit fabric is approximately 14 stitches per inch. 
     
     
         19 . The repair wrap of  claim 16 , wherein the polyurethane film includes a dye, the dye configured to change the color of the polyurethane film. 
     
     
         20 . The repair wrap of  claim 16 , wherein the polyurethane film is between 0.1 and 0.2 millimeters thick.