Device and Method Relating to the Installation of a Liner in a Chimney or Flue

Abstract

The invention relates to a coring device 10 for a chimney or flue 42 , comprising a body 16, 26 having a first end 14 and a second end 12 , wherein the first end 14 is adapted for attachment to at least one chimney rod 38 , the body 16, 26 having a circular cross section having a diameter substantially equal to or larger than an external diameter of a liner 64 to be installed in the chimney or flue 42.

1 . A coring device for a chimney or flue, comprising a body having a first end and a second end, wherein the first end is adapted for attachment to at least one chimney rod, the body having a circular cross section having a diameter substantially equal to or larger than an external diameter of a liner to be installed in the chimney or flue. 
     
     
         2 . A device according to  claim 1 , wherein the first end and/or the second end comprises an impact resistant material for clearing a channel in the chimney or flue. 
     
     
         3 . A device according to  claim 1 , wherein the body is for attachment to the liner to be installed in the chimney or flue. 
     
     
         4 . A device according to  claim 1 , wherein the body has at least one wheel or bearing on an exterior thereof for guiding the body along the chimney or flue. 
     
     
         5 . A device according to  claim 4 , wherein the at least one wheel is towards an end of the body. 
     
     
         6 . A device according to  claim 4 , wherein the body has a first set of at least four wheels that are spaced equally around an exterior of the body. 
     
     
         7 . A device according to  claim 6 , wherein the body has a second set of at least four wheels, the first set of four wheels being towards one end of the body, and the second set of four wheels being towards another end of the body. 
     
     
         8 . A device according to  claim 4 , wherein the at least one wheel is rotatable about an axis which is tangential to the body. 
     
     
         9 . A device according to  claim 1 , wherein the body comprises two portions that are attachable to each other, one portion including the first end, and the other portion including the second end. 
     
     
         10 . A device according to  claim 9 , wherein the two portions have respective cooperating male and female threads for screwing the two portions together. 
     
     
         11 . A device according to  claim 1 , wherein the body is substantially hollow. 
     
     
         12 . A device according to  claim 1 , wherein the body is elongate. 
     
     
         13 . A device according to  claim 1 , wherein the device has a mass of between 1 Kg to 5 Kg. 
     
     
         14 . A device according to  claim 1 , wherein one or both of the first end and the second end is tapered. 
     
     
         15 . A method of installing a liner in a chimney or flue using a coring device comprising a body having a circular cross section with a diameter substantially equal to or larger than an external diameter of the liner to be installed, method including:
 attaching the body to at least one chimney rod;   pushing the coring device along the chimney or flue using the at least one chimney rod to clear a channel in the chimney or flue;   attaching the liner to the body; and   pulling the liner along the chimney or flue using the at least one chimney rod.   
     
     
         16 . A method according to  claim 15 , and further including driving the body against a blocked or a narrow region in the chimney or flue prior to pulling the liner along the chimney or flue. 
     
     
         17 . A method according to  claim 16 , and further including measuring a position of the blocked or the narrow region in the chimney or flue using the at least one chimney rod. 
     
     
         18 . A method according to  claim 15 , the body having at least one wheel or bearing on an exterior thereof, the method including guiding the body through the chimney or flue using the at least one wheel or bearing. 
     
     
         19 . A method according to  claim 15 , wherein said pushing the coring device along the chimney or flue using the at least one chimney rod comprises pushing the coring device up the chimney or flue. 
     
     
         20 . A method according to  claim 15 , wherein said pulling the liner along the chimney or flue using the at least one chimney rod comprises pulling the liner down the chimney or flue.