Patent ID: 7464415

Claim:
A supplemental fill valve for use in a toilet tank, to work in conjunction with a flapper and a typical fill valve having a float cup and a valve body, comprising in combination: a supplemental float cup forming a recess and at least one opening therein; a vertical member installed through the recess, on which the supplemental float cup freely moves up and down; and a coil spring placed between the top of the vertical member and the top inside of the supplemental float cup, wherein the coil spring exerts upward pressure from the top of the valve body against the top of the float cup, wherein the float cup fills at least partially with water taken in through the at least one opening, and wherein when the flapper is lifted and water flows out of the tank, the float cup moves down the valve body until the spring is substantially compressed, and wherein when the water that at least partially filled the float cup runs out of the float cup through the at least one opening, the spring returns the float cup to the upper position; and a lifting member extending from the supplemental float cup to the float cup for lifting the float cup.