Coupling for direct venting system

Abstract

A pipe coupling for components of a venting system comprising a male pipe member on an end of a first component and a female pipe member on a corresponding end of a second component. The male pipe member comprises an inner flue pipe having a compressible gasket surrounding the inner flue pipe proximate an external end of the inner flue pipe, an external venting pipe surrounding the inner flue pipe and brackets linking the inner flue pipe to the external venting pipe. The female pipe member receives the male pipe member and comprises an inner flue sleeve being sized larger than the outer diameter of the flue pipe at an outer end of the sleeve. The inner flue sleeve remains in circumferential contact with the compressible gasket when the male pipe member is inserted into the female pipe member.

1 . A pipe coupling for components of a venting system comprising: 
 a male pipe member on an end of a first one of said components, said male pipe member comprising: 
 an inner flue pipe having a compressible gasket surrounding the inner flue pipe proximate an external end of the inner flue pipe;  
 a first external venting pipe surrounding the inner flue pipe; and  
 brackets linking the inner flue pipe to the first external venting pipe; and  
   a female pipe member on a corresponding end of a second one of said components, said female pipe member receiving the male pipe member and comprising: 
 an inner flue sleeve being sized larger than the outer diameter of the inner flue pipe at an outer end of the sleeve; and  
 a second external venting pipe surrounding the inner flue sleeve;  
 wherein the inner flue sleeve remains in circumferential contact with the compressible gasket, and the first and second external venting pipes remain in contact with each other, when the male pipe member is inserted into the female pipe member.  
   
   
   
       2 . The pipe coupling according to  claim 1 , further comprising a plurality of fasteners fastening the male pipe member to the female pipe member.  
   
   
       3 . The pipe coupling according to  claim 1 , wherein the compressible gasket is made of woven fibreglass.  
   
   
       4 . The pipe coupling according to  claim 1 , wherein first and second external venting pipes are respectively female and male external venting pipes and are tapered such that the female external venting pipe is sized to receive the male external venting pipe when the male pipe member is inserted into the female pipe member.  
   
   
       5 . The pipe coupling according to  claim 2 , wherein the fasteners are screws.  
   
   
       6 . The pipe coupling according to  claim 2 , wherein the compressible gasket is made of woven fibreglass.  
   
   
       7 . The pipe coupling according to  claim 6 , wherein first and second external venting pipes are respectively female and male external venting pipes and are tapered such that the female external venting pipe is sized to receive the male external venting pipe when the male pipe member is inserted into the female pipe member.  
   
   
       8 . The pipe coupling according to  claim 7 , wherein the fasteners are screws.  
   
   
       9 . A venting system comprising components that are coupled with the pipe coupling defined in  claim 1 .  
   
   
       10 . The venting system according to  claim 9 , further comprising a square wall thimble insulated against cold air infiltrations.  
   
   
       11 . The venting system according to  claim 9 , wherein one of said components is selected from the group consisting of a standard length, an adjustable length, a flexible length, an adapter, and an elbow.  
   
   
       12 . The venting system according to  claim 9 , wherein one of said components is a termination cap comprising a deflector plate centered on the flue pipe and deflecting gases from the flue pipe, and a generally trapezoidally-shaped cover plate covering the termination cap.  
   
   
       13 . A component of a venting system, said venting system having a flue sleeve of a defined diameter, said component comprising: 
 a male pipe member on a first end of the component, said male pipe member comprising: 
 an inner flue pipe having a compressible gasket surrounding the inner flue pipe proximate an external end of the inner flue pipe;  
 a first external venting pipe surrounding the inner flue pipe; and  
 brackets linking the inner flue pipe to the first external venting pipe.  
   
   
   
       14 . The component according to  claim 13 , further comprising: 
 a female pipe member on a second end of the component, said female pipe member comprising: 
 an inner flue sleeve being sized larger than the outer diameter of the inner flue pipe at an outer end of the sleeve; and  
 a second external venting pipe surrounding the inner flue sleeve,  
 wherein the inner flue sleeve remains in circumferential contact with a further compressible gasket of a further component, and the second external venting pipe remains in circumferential contact with a further first external venting pipe of the further component, when a female pipe member of the further component receives the male pipe member.  
   
   
   
       15 . The component according to  claim 13 , further comprising: 
 a female pipe member on a second end of the component, said female pipe member comprising: 
 an inner flue sleeve being sized larger than the outer diameter of the inner flue pipe at an outer end of the sleeve; and  
 a second external venting pipe surrounding the inner flue sleeve,  
 wherein the compressible gasket remains in circumferential contact with a further inner flue sleeve of a further component, and the first external venting pipe remains in circumferential contact with a further second external venting pipe of the further component, when the male pipe member is inserted into a female pipe member of the further component.  
   
   
   
       16 . The component according to  claim 13 , wherein the compressible gasket is made of woven fibreglass.  
   
   
       17 . The component according to  claim 13 , wherein the male pipe member comprises a plurality of holes in the first external venting pipe, each of said plurality of holes being sized to receive a fastener therethrough.  
   
   
       18 . The component according to  claim 13 , wherein the component is selected from the group consisting of a standard length, an adjustable length, a flexible length, an adapter, an elbow and a termination cap.  
   
   
       19 . The component according to  claim 16 , wherein the male pipe member comprises a plurality of holes in the first external venting pipe, each of said plurality of holes being sized to receive a fastener therethrough.  
   
   
       20 . The component according to  claim 19 , wherein the component is selected from the group consisting of a standard length, an adjustable length, a flexible length, an adapter, an elbow and a termination cap.