Shower drainage system having slimline waste conduit device

Abstract

A shower drainage system ( 10 ) comprises a shower tray or former ( 12 ), a waste water device ( 14 ) attached to a waste water outlet ( 16 ) of the shower tray or former ( 12 ), and a slimline waste conduit device ( 18 ) which extends from a waste water outlet ( 20 ) of the waste water device ( 14 ). The slimline waste conduit device ( 18 ) has a, or a total combined, hydraulic radius which is greater than the hydraulic radius of a single shower drainage pipe of circular cross-section having a diameter equivalent to the minor lateral dimension of the slimline waste conduit device.

1 - 20 . (canceled) 
     
     
         21 . A shower drainage system ( 10 ) comprising a shower tray or former ( 12 ), a waste water device ( 14 ) attached to a waste water outlet ( 16 ) of the shower tray or former ( 12 ), and a slimline waste conduit device ( 18 ;  118 ) extending from a waste water outlet ( 20 ) of the waste water device ( 14 ) and which has a minor lateral dimension extending substantially perpendicularly to the shower tray or former and a major lateral dimension extending substantially parallel with the tray or former, the major lateral dimension being greater than the minor lateral dimension, the slimline waste conduit device ( 18 ;  118 ) having a lower interior surface ( 44 ) and/or an upper interior surface ( 46 ) which include(s) at least two concave portions in a lateral plane. 
     
     
         22 . A shower drainage system ( 10 ) as claimed in  claim 21 , wherein the slimline waste conduit device ( 18 ;  118 ) has, or when taken as a whole, a non-circular exterior lateral cross-section. 
     
     
         23 . A shower drainage system ( 10 ) as claimed in  claim 21 , wherein the at least two concave portions ( 48 ) are contiguously formed with each other. 
     
     
         24 . A shower drainage system ( 10 ) as claimed in  claim 21 , wherein the slimline waste conduit device ( 18 ;  118 ) includes a transition element ( 52 ;  152 ) for connection of the conduit ( 18 ;  118 ) to a waste water pipe. 
     
     
         25 . A shower drainage system ( 10 ) as claimed in  claim 24 , wherein the transition element ( 52 ;  152 ) is separate of a conduit body ( 42 ) of the waste conduit device ( 18 ;  118 ). 
     
     
         26 . A shower drainage system ( 10 ) as claimed in  claim 24 , wherein the transition element is integrally formed as one-piece with a conduit body of the waste conduit device. 
     
     
         27 . A shower drainage system ( 10 ) as claimed in  claim 24 , wherein the transition element ( 52 ;  152 ) is invertible to alter a fall to the waste water pipe. 
     
     
         28 . A shower drainage system ( 10 ) as claimed in  claim 21 , wherein the slimline waste conduit device ( 18 ;  118 ) includes a plurality of channels ( 50 ;  150 ) extending therethrough. 
     
     
         29 . A shower drainage system as claimed in  claim 28 , wherein each channel ( 150 ) is an independent bore which has a circular or substantially circular interior lateral cross-section. 
     
     
         30 . A shower drainage system ( 10 ) as claimed in  claim 21 , wherein the slimline waste conduit device ( 18 ;  118 ) extends beneath the shower tray or former ( 12 ) to a drain or a drain pipe. 
     
     
         31 . A shower drainage system ( 10 ) as claimed in  claim 21 , wherein the slimline waste conduit device ( 18 ;  118 ) is within or substantially within a depth of the shower tray or former ( 12 ). 
     
     
         32 . A slimline waste conduit device ( 18 ;  118 ) for connection to a waste water device ( 14 ) of a shower drainage system ( 10 ) as claimed in  claim 21 , the slimline waste conduit device ( 18 ;  118 ) having a lower interior surface ( 44 ) and/or an upper interior surface ( 46 ) which include at least two concave portions in a lateral plane. 
     
     
         33 . A slimline waste conduit device ( 18 ;  118 ) as claimed in  claim 32 , wherein the waste conduit device ( 18 ;  118 ) includes two or more channels ( 50 ;  150 ). 
     
     
         34 . A slimline waste conduit device ( 18 ;  118 ) as claimed in  claim 32 , in combination with a waste water device ( 14 ) for location in a waste water outlet ( 16 ) of a shower tray or shower former ( 12 ). 
     
     
         35 . A shower drainage system ( 10 ) comprising a shower tray or former ( 12 ), a waste water device ( 14 ) attached to a waste water outlet ( 16 ) of the shower tray or former ( 12 ), and a slimline waste conduit device ( 18 ;  118 ) extending from a waste water outlet ( 20 ) of the waste water device ( 14 ) and which has a minor lateral dimension extending substantially perpendicularly to the shower tray or former and a major lateral dimension extending substantially parallel with the tray or former, the major lateral dimension being greater than the minor lateral dimension, the slimline waste conduit device ( 18 ;  118 ) including two or more channels ( 50 ;  150 ).