Aqualock closet valve

Claim 1

In combination with a water supply tank and a flush toilet commode having a water path connected therebetween and a drain valve located in said water path between said supply tank and said toilet commode, an independent aqualock closet valve connected in parallel to said water path for preventing the overflow of the toilet commode, said aqualock closet valve comprising: an auxiliary float chamber located below said water supply tank and at a position corresponding to a selected upper portion of said toilet commode; a first conduit for conducting water between said auxiliary flow chamber and said toilet commode; and means for stopping the flow of fresh water from said supply tank to said commode when the water level in said toilet commode results in a corresponding rise of water in said auxiliary float chamber, said means for stopping comprising a float located within said chamber, a pipe extending from said auxiliary float chamber through the bottom of said supply tank and upwardly into the interior of said tank to a level greater than the water level of said tank, a connecting rod having a first and second end, said first end being attached to said float, said rod extending through said pipe and being formed such that said second end extends downwardly, and means attached to said second end for bearing against said drain valve such that water rising to a selected level in said toilet commode results in a corresponding rise in water in said auxiliary float chamber which raises said float means and thereby closes said drain valve connected thereto.