Concentric tank flapper system

Abstract

The invention provides an improvement to existing toilet tank flappers, designed to conserve water. The system includes a nested compound actuator handle attached by independent arms to a compound rubber flapper system. The minor handle component actuates a smaller concentric flapper that, though initial set-up, allows for minimal water flow with the intent of only utilizing enough water to facilitate and complete bowl water exchange. The major handle component actuates the entire flapper mechanism allowing, though initial set-up, a measured amount of tank volume to facilitate the removal of waste from the bowl. The system, by design, allows the user to initiate either operation without in a single motion and without the need to provide any additional input to complete the flush cycle.

1 . A toilet tank flush mechanism, comprising: 
 a concentric set of flappers including a main flapper for high volume flushes and a small flapper concentrically disposed in the main flapper for low volume flushes, the main flapper having a pivotal mounting end and a chain attachment end;    a pivot arm adapted to carry the small flapper, the pivot arm having a pivotal mounting end and a chain attachment end, the pivotal mounting end of the pivot arm being pivotally mounted to the pivotal mounting end of the main flapper;    two lever handles connected to independent extension arms, including a high volume extension arm adapted to actuate the main flapper and a low volume extension arm adapted to actuate the smaller flapper; and    chains connecting the high volume extension handle with the chain attachment end of the main flapper and connecting the low volume extension handle with the chain attachment end of the pivot arm that carries the small flapper.    
   
   
       2 . The toilet tank flush mechanism as defined in  claim 1 , wherein floats are provided that are positionable at selected positions along the chains, such that the volume of water used can be adjusted by adjusting the position of the floats on the chains.  
   
   
       3 . The toilet tank flush mechanism as defined in  claim 1 , wherein the lever handles are nested.