Drain assembly, drain body for use in such an assembly and method for building-in of a drain

Abstract

Methods and devices for drain assemblies including those for building into a floor. Such drain assemblies including a drain body which can be built into the floor and which has at the top an inlet zone with a periphery, a peripheral flange with an upper surface, extending substantially in a horizontal plane from this periphery, a water-sealing layer arranged adheringly on the upper surface of the peripheral flange, a sealing mat with the form of a frame with an inner periphery fitting around the periphery, wherein a portion of the sealing mat overlaps at least the outer periphery of the water-sealing layer, and wherein the sealing mat and the water-sealing layer are adapted to be water-sealing and to adhere well to tile adhesive.

1 . A drain assembly for building into a floor, comprising:
 a drain body which can be built into the floor and which has at an inlet zone at a top, said inlet zone having a periphery;   a peripheral flange having an upper surface, said upper surface extending substantially in a horizontal plane from said periphery;   a water-sealing layer arranged adheringly on said upper surface of the peripheral flange, said water-sealing layer having an outer periphery;   a sealing mat having a shape of a frame, said frame having an inner periphery fitting around said periphery of said inlet zone, wherein a portion of the sealing mat overlaps at least said outer periphery of said water-sealing layer; and   wherein said sealing mat and said water-sealing layer are adapted to be water-sealing and to adhere well to tile adhesive.   
     
     
         2 . The drain assembly as claimed in  claim 1 , wherein the sealing mat and the water-sealing layer each comprise polyethylene. 
     
     
         3 . The drain assembly as claimed in  claim 1 , wherein the sealing mat and the water-sealing layer are each provided on both sides with a fleece webbing for a good anchoring in the tile adhesive. 
     
     
         4 . The drain assembly as claimed in  claim 1 , wherein the sealing mat and the water-sealing layer are KERDI mats cut to size. 
     
     
         5 . The drain assembly as claimed in  claim 1 , wherein the water-sealing layer is arranged on the upper surface of the peripheral flange using a securing substance selected from a group consisting of: i) an acrylate adhesive with high adhesive strength; and ii) a two-sided adhesive transfer tape arranged on the upper surface of the peripheral flange. 
     
     
         6 . The drain assembly as claimed in  claim 1 , wherein the water-sealing layer is arranged on the upper surface of the peripheral flange using a layer of adhesive with a thickness of between 0.05 mm and 0.50 mm. 
     
     
         7 . The drain assembly as claimed in  claim 1 , wherein the peripheral flange has an outer periphery; and wherein the sealing mat is dimensioned to extend from the periphery of the inlet zone to a position beyond said outer periphery of said peripheral flange. 
     
     
         8 . The drain assembly as claimed in  claim 1 , wherein the peripheral flange is provided with an upright edge, adjacent to the outer periphery of the peripheral flange. 
     
     
         9 . The drain assembly as claimed in  claim 1 , wherein the drain body is a moulded plastic article or is manufactured from metal. 
     
     
         10 . The drain assembly as claimed in  claim 1 , wherein the drain body is provided on its underside with a number of protrusions for stabilizing the drain body during placing thereof in a floor material such as mortar. 
     
     
         11 . The drain assembly as claimed in  claim 1 , wherein the sealing layer completely covers the upper surface of the peripheral flange. 
     
     
         12 . The drain assembly as claimed in  claim 1 , said sealing layer having a peripheral zone, wherein the sealing mat is dimensioned to overlap with said peripheral zone, said peripheral zone having a width of at least 2 cm, preferably at least 3 cm and more preferably at least 5 cm. 
     
     
         13 . A drain body for building into a floor, comprising:
 a drain body which can be built into the floor and which has an inlet zone at a top, the inlet zone having a periphery;   a peripheral flange having an upper surface, said upper surface extending substantially in a horizontal plane from said periphery;   a water-sealing layer arranged adheringly on the upper surface of the peripheral flange; and   wherein the water-sealing layer is adapted to be water-sealing and to adhere well to tile adhesive.   
     
     
         14 . The drain body as claimed in  claim 13 , wherein the water-sealing layer is provided on both sides with a fleece webbing for a good anchoring in the tile adhesive. 
     
     
         15 . The drain body as claimed in  claim 13 , wherein the water-sealing layer is a KERDI mat cut to size. 
     
     
         16 . A drain assembly for building into a floor, comprising:
 a drain body which can be built into the floor and which has an inlet zone at a top, the inlet zone having a periphery;   a peripheral flange having an upper surface, said upper surface extending substantially in a horizontal plane from said periphery;   a water-sealing layer arranged adheringly on said upper surface of the peripheral flange, said water-sealing layer having an outer periphery; said water-sealing layer comprising polyethylene and being provided with a fleece webbing for a good anchoring in the tile adhesive; and   a sealing mat having a shape of a frame, said frame having inner periphery fitting around said periphery of said inlet zone, wherein a portion of the sealing mat overlaps at least said outer periphery of said water-sealing layer; said sealing mat comprising polyethylene and being provided with a fleece webbing for a good anchoring in the tile adhesive.   
     
     
         17 . The drain assembly as claimed in  claim 16 , wherein the sealing mat and the water-sealing layer are KERDI mats cut to size. 
     
     
         18 . The drain assembly as claimed in  claim 16 , said sealing layer having a peripheral zone, wherein the sealing mat is dimensioned to overlap with said peripheral zone, said peripheral zone having a width of at least 2 cm, preferably at least 3 cm and more preferably at least 5 cm. 
     
     
         19 . A method for placing the drain assembly of  claim 1 , wherein the water-sealing layer has been connected adheringly to the upper surface of the peripheral flange prior to building into the floor; and wherein the sealing mat has been cut to size with the form of a frame with an inner periphery fitting around the periphery, this prior to building into the floor, wherein the sealing mat is dimensioned such that a portion of the sealing mat overlaps at least the outer periphery the water-sealing layer; the method comprising the steps of:
 arranging the drain body in a floor material such that the underside of the peripheral flange is arranged in the floor material; and   placing the sealing mat around the periphery and connecting the sealing mat adheringly to the sealing layer by means of tile adhesive, wherein a portion of the sealing mat overlaps at least the outer periphery of the water-sealing layer.   
     
     
         20 . The method as claimed in  claim 19 , wherein the sealing mat and the water-sealing layer are cut to size from KERDI mats.