Leak prevention fill valve control system for toilet tank

Abstract

A mechanical set of flow counters measure water flow into a toilet tank. A valve controlled by the flow counters turns off the water flow when sufficient water to fill the tank has flowed into the tank. The flow counters are built into the shaft of the fill valve. The flow counters stop a leak by closing a fill valve in the system of the invention or the fill valve built into the toilet tank.

1 . A mechanical water flow measuring and regulating system for preventing loss of water due to toilet malfunctions, the system comprising:
 a mechanical water flow measuring and regulating device communicating with a water fill pipe for a toilet and a water fill valve to start and stop the flow of water through the water fill pipe into a fill tank of the toilet, the mechanical water flow measuring and regulating device comprising a water wheel in contact with the moving water in the water fill pipe and at least one control gear mechanically turned by the water wheel, a regulator arm mechanically linked between the at least one control gear and the water fill valve to control the water fill valve, the water wheel and the at least one control gear structured to measure the quantity of water flowing through the water fill pipe so that after a measured amount of water sufficient to fill the toilet tank is detected as having flowed through the water fill pipe, the combination water flow measuring and regulating device causes the water fill valve to stop the flow of water into the fill tank to prevent a loss of water due to a toilet malfunction.   
     
     
         2 . The system of  claim 1  wherein the mechanical water flow measuring and regulating device is used in a toilet tank having a primary combination water flow control valve and water level detector device serving as the primary water flow control valve to start the flow of water upon flushing the toilet and stop the flow of water when the water level in the tank is detected to be at a desired height, the mechanical water flow measuring and regulating device operating independently of the primary combination water flow control valve and water level detector device to stop the flow of water when the primary combination water flow control valve and water level detector device fails to stop the flow of water. 
     
     
         3 . The system of  claim 2  further comprising a water level detector device working in conjunction with the water control valve so that both the water level detector device and the water flow detector each independently activate and deactivate the water control valve to start and stop the flow of water in the water fill pipe.