US2018023747A1PendingUtilityA1

Fluid leak repair

31
Assignee: ENDURATEC LTDPriority: Jul 22, 2016Filed: Jul 7, 2017Published: Jan 25, 2018
Est. expiryJul 22, 2036(~10 yrs left)· nominal 20-yr term from priority
Inventors:Bruce Hutt
F16L 55/1686F16L 55/175F16L 55/18F16L 55/1003B32B 27/12B32B 27/08B29C 73/10B29C 73/02B29C 66/73771B29C 66/7212B29C 66/72B29C 66/301B29C 65/5057B29C 65/486B29C 65/484B29C 63/10
31
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A fluid leak repair kit, comprising: a putty; a self-amalgamating tape; and a composite material for use in encompassing the self-amalgamating tape, said composite material comprising a flexible sheet or tape and a matrix component for binding the flexible sheet or tape, the matrix component comprising a resin or water-activated matrix component which, when cured, forms an outer shell.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A fluid leak repair kit, comprising:
 a putty;   a self-amalgamating tape; and   a composite material for use in encompassing the self-amalgamating tape, said composite material comprising a flexible sheet or tape and a matrix component for binding the flexible sheet or tape, the matrix component comprising a resin or water-activated matrix component which, when cured, forms an outer shell.   
     
     
         2 . A kit according to  claim 1 , wherein said flexible sheet or tape comprises a woven material. 
     
     
         3 . A kit according to  claim 1 , wherein said flexible sheet or tape comprises a fibre glass or carbon fibre material. 
     
     
         4 . A kit according To  claim 1 , wherein said flexible sheet or tape is pre-impregnated with the matrix material or a component for forming the matrix material, and optionally wherein said matrix component is a polymeric water soluble or water-activated substance such as a polyurethane resin. 
     
     
         5 . A kit according to  claim 1 , wherein said matrix component comprises 1,2-propaniedol, 2-ethyl-2-(hydroxymethyl), polymer with bis(isocyanatomethyl) benzene. 
     
     
         6 . A kit according to  claim 1 , further comprising a stretch wrap material for placing over said composite material whilst said matrix component cures. 
     
     
         7 . A kit according to  claim 1 , wherein said self-amalgamating tape comprises a silicone self-amalgamating tape. 
     
     
         8 . A gas leak repair kit according to  claim 1 , wherein said putty is a non-curing putty such as silicone non-curing putty. 
     
     
         9 . A liquid leak repair kit according to  claim 1 , wherein said putty is a two-part curing putty such as a two-part curing silicone putty. 
     
     
         10 . A method of repairing a fluid leak in a pipe or conduit, the method comprising:
 applying a layer of putty to said pipe or conduit at a location of said leak to seal it;   wrapping, at tension, a self-amalgamating tape around said layer of putty to cover it;   contacting a flexible sheet or tape with either:
 a resin, or 
 water to activate a water-activated matrix component; and 
   encompassing the self-amalgamating tape with the flexible sheet or tape such that the resin or water-activated matrix component binds with the flexible sheet or tape to form an outer shell with the flexible sheet or tape to substantially surround the joint.   
     
     
         11 . A method according to  claim 10 , wherein said self-amalgamating tape is wrapped at full tension, in which its width is 75% or less of its original width. 
     
     
         12 . A method according to  claim 10 , further comprising, after wrapping, at tension, a self-amalgamating tape around said layer of putty to create a high tension wrapped region, wrapping, at low tension, a further layer of said self-amalgamating tape around said high tension wrapped region to cover it. 
     
     
         13 . A method according to  claim 10 , being a method of repairing a gas leak, wherein said putty is a non-curing putty such as silicone non-curing putty. 
     
     
         14 . A method according to  claim 10 , being a method of liquid leak repair, wherein said putty is a two-part curing putty such as two-part curing silicone putty. 
     
     
         15 . A method according to  claim 10 , wherein said flexible sheet or tape comprises a woven material. 
     
     
         16 . A method according to  claim 10 , wherein said flexible sheet or tape comprises a fibre glass or carbon fibre material. 
     
     
         17 . A method according to  claim 10 , wherein said flexible sheet or tape is pre-impregnated with the matrix material or a component for forming the matrix material, such as a polymeric water soluble or water-activated substance, or wherein said matrix component is a polyurethane resin. 
     
     
         18 . A method according to  claim 10 , wherein said matrix component comprises 1,2-propaniedol, 2-ethyl-2-(hydroxymethyl), polymer with bis(isocyanatomethyl) benzene. 
     
     
         19 . A method according to  claim 10 , further comprising wrapping a stretch wrap material over said composite material whilst said matrix component cures. 
     
     
         20 . A method according to  claim 10 , wherein said self-amalgamating tape comprises a silicone self-amalgamating tape. 
     
     
         21 . A method according to  claim 10 , comprising cutting lengths of said self-amalgamating tape prior to wrapping each said length self-amalgamating tape, at tension, around said layer of putty. 
     
     
         22 . A method according to  claim 21 , wherein said lengths of self-amalgamating tape are cut at an angle, for example 45°.

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