Toilet valve assembly

Abstract

A dual flush-volume outflow valve assembly for a toilet tank is provided. The valve assembly includes a base having an opening for passing water out of the toilet tank, a lower outflow tube section extending upwardly from the base, the lower outflow tube section having a hollow interior and including a high-volume flush valve configured to pass a first, larger volume of water from the toilet tank to the toilet bowl when opened, and an upper outflow tube section slidably coupled to and extending upwardly from the lower outflow tube section, the upper outflow tube section having a hollow interior and at least partially forming a low-volume flush valve configured to pass a second, smaller volume of water from the toilet tank to the toilet bowl when opened.

I claim:  
     
         1 . A dual flush-volume outflow valve assembly for a toilet tank, comprising: 
 a base having an opening for passing water out of the toilet tank;    a lower outflow tube section extending upwardly from the base, the lower outflow tube section having a hollow interior and including a high-volume flush valve configured to pass a first, larger volume of water from the toilet tank to the toilet bowl when opened; and    an upper outflow tube section slidably coupled to and extending upwardly from the lower outflow tube section, the upper outflow tube section having a hollow interior and at least partially forming a low-volume flush valve configured to pass a second, smaller volume of water from the toilet tank to the toilet bowl when opened.    
     
     
         2 . The valve assembly of  claim 1 , the lower outflow tube section having a side, wherein the high-volume flush valve empties water into the side of the lower outflow tube section.  
     
     
         3 . The valve assembly of  claim 2 , further comprising a side tube coupled to the side of the lower outflow tube section, wherein the side tube connects the high-volume flush valve to the lower outflow tube section.  
     
     
         4 . The valve assembly of  claim 3 , the toilet tank having a bottom, wherein the side tube extends away from the lower outflow tube section generally parallel to the toilet tank bottom.  
     
     
         5 . The valve assembly of  claim 1 , further comprising a cap section disposed above the upper outflow tube section.  
     
     
         6 . The valve assembly of  claim 5 , the upper outflow tube section having a top surface and the cap section having a bottom surface, wherein the low-volume flush valve is opened by separating the top surface of the upper outflow tube section from the bottom surface of the cap section.  
     
     
         7 . The valve assembly of  claim 1 , wherein the hollow interiors of the upper outflow tube section and the lower outflow tube section are positioned over and in line with the opening in the base.  
     
     
         8 . The valve assembly of  claim 1 , further comprising a locking collar for locking the upper outflow tube section in position relative to the lower outflow tube section.  
     
     
         9 . The valve assembly of  claim 1 , further comprising an overflow tube in fluid communication with the upper outflow tube section.  
     
     
         10 . The valve assembly of  claim 9 , wherein the overflow tube has an adjustable height.  
     
     
         11 . The valve assembly of  claim 9 , wherein the overflow tube includes an upper overflow tube section slidably connected to a lower overflow tube section.