Patent ID: 6978489

Claim:
A toilet seat provided with at least one accommodation trough, said seat being pivotally mounted on the rear of a toilet bowl, and at least one box containing liquid and a partitioning frame to divide the interior of the box into at least three compartments connected to one another for the liquid to flow therein, is characterized by: an air vent provided between a first and third compartments to balance the pressure difference therebetween, a gap trough positioned in a partition between a second and said third compartment away from the bottom of the second compartment for a given distance, when said bottom is situated horizontally while said seat is on said bowl, whereby said second compartment will maintain a preset amount of liquid therein such that, the seat will first maintain a present lifting angle before being further slowly and smoothly lifted to a vertical position by liquid movement once the pressure of the user on the seat is removed so as to avoid contact with a user of the seat.