Apparatus and method for placement of a water closet fitting

Abstract

A water closet fitting allows placement of a water closet flange in fluid communication with a waste pipe of a plumbing system. The water closet fitting includes a cap with a removable, pressure resistant cap portion sealing off an inlet. The cap portion may be removed to permit fluid to flow through the inlet. The water closet flange is sealably mounted to the water closet fitting once the cap portion is removed. The waste pipe is sealably connected to the water closet fitting below the cap.

1 . A method for placing a water closet flange in fluid communication with a waste pipe of a plumbing system, the method comprising: 
 providing a channel;    capping the channel with a water closet fitting;    pouring concrete around the channel to form a floor thereabout;    sealing an inlet end of the waste pipe to the water closet fitting;    removing a cap portion of the water closet fitting to permit fluid flow through the water closet fitting and into the waste pipe; and    sealing a water closet flange to the water closet fitting.    
   
   
       2 . The method of  claim 1 , and further comprising: 
 pressurizing the waste pipe before removing the cap portion of the water closet fitting.    
   
   
       3 . The method of  claim 1 , and further comprising: 
 forming the water closet fitting from a base member and a top member.    
   
   
       4 . The method of  claim 3 , and further comprising: 
 sealing the base member and the top member together.    
   
   
       5 . The method of  claim 4 , wherein the base member is sealed to the inlet end of the waste pipe before sealing the base member to the top member.  
   
   
       6 . The method of  claim 1 , wherein the first sealing step comprises: 
 aligning the inlet end of the waste pipe relative to the water closet flange.    
   
   
       7 . An adaptor insert for placement inside a channel body to allow a water closet flange to be mounted relative to the channel body after pouring a concrete floor around the channel body, the adaptor insert comprising: 
 a cap mountable on an end of the channel body, the cap including a removable, pressure-resistant cap portion that, upon removal, permits fluid flow through the cap; and    an annular mating surface attached to the cap and adapted to extend inside the channel body.    
   
   
       8 . The adaptor insert of  claim 7 , and further comprising: 
 a riser body defining a fluid passage and having an inlet end and an outlet end, wherein the inlet end of the riser body is formed to mate with the annular mating surface.    
   
   
       9 . The adaptor insert of  claim 8 , wherein the outlet end of the riser body has an exterior surface including a male surface adapted to sealably mate with a female surface on an inlet end of the waste pipe.  
   
   
       10 . The adaptor insert of  claim 9 , wherein an exterior stop is provided on the exterior surface of the riser body to abut the inlet end of the waste pipe when the riser body and waste pipe are fully mated.  
   
   
       11 . The adaptor insert of  claim 10 , wherein the exterior surface of the riser body is an annular surface, and wherein the exterior stop comprises an enlarged diameter portion of the exterior annular surface of the riser body.  
   
   
       12 . The adaptor insert of  claim 8 , wherein the outlet end of the riser body has an interior surface including a female surface adapted to sealably mate with a male surface on an inlet end of the waste pipe.  
   
   
       13 . The adaptor insert of  claim 12 , wherein an interior stop is provided on the interior surface of the riser body to abut the inlet end of the waste pipe when the riser body and waste pipe are fully mated.  
   
   
       14 . The adaptor insert of  claim 13 , wherein the interior surface of the riser body is an annular surface, and wherein the interior stop comprises a reduced diameter portion of the interior annular surface of the riser body.  
   
   
       15 . The adaptor insert of  claim 7 , wherein the removable cap portion is connected to the cap by a frangible connection.  
   
   
       16 . The adaptor insert of  claim 7 , wherein the cap mechanically engages the end of the channel body.  
   
   
       17 . The adaptor insert of  claim 16 , wherein the cap mechanically engages the end of the channel body by an interference friction fit therebetween.  
   
   
       18 . A water closet fitting for placement inside a channel body providing a passage through a concrete floor of a structure, the water closet fitting comprising: 
 a flow path comprising: 
 an inlet adapted to sealably mate with a collar of a water closet flange;  
 an outlet adapted to sealably mate with a waste pipe of a plumbing system; and  
   a cap attached to the flow path adjacent the inlet and sized to seal off the flow path, the cap including a removable, pressure-resistant cap portion that, upon removal, permits fluid flow from the inlet to the outlet.    
   
   
       19 . The water closet fitting of  claim 18 , wherein the removable cap portion is connected to the cap by a frangible connection.  
   
   
       20 . The water closet fitting of  claim 18 , wherein the outlet of the flow path has an exterior surface including a male surface adapted to sealably mate with a female surface on an inlet end of the waste pipe.  
   
   
       21 . The water closet fitting of  claim 20 , wherein an exterior stop is provided on the exterior surface of the outlet to abut the inlet end of the waste pipe when the outlet and waste pipe are fully mated.  
   
   
       22 . The water closet fitting of  claim 21 , wherein the exterior surface of the outlet is an annular surface, and wherein the exterior stop comprises an enlarged diameter portion of the exterior annular surface of the outlet.  
   
   
       23 . The water closet fitting of  claim 18 , wherein the outlet end of the flow path has an interior surface including a female surface adapted to sealably mate with a male surface on an inlet end of the waste pipe.  
   
   
       24 . The water closet fitting of  claim 23 , wherein an interior stop is provided on the interior surface of the outlet to abut the inlet end of the waste pipe when the outlet and waste pipe are fully mated.  
   
   
       25 . The water closet fitting of  claim 24 , wherein the interior surface of the outlet is an annular surface, and wherein the interior stop comprises a reduced diameter portion of the interior annular surface of the outlet.  
   
   
       26 . The water closet fitting of  claim 18 , wherein the cap mechanically engages an end of the channel body.  
   
   
       27 . The water closet fitting of  claim 26 , wherein the cap mechanically engages the end of channel body by an interference friction fit therebetween.