Patent ID: 6651265
Filing Date: 2003-11-25
Classification: E03D

Abstract:
A water saving siphon cover, comprising:a flexible air chamber provided with a supporting portion which is thick and forms a wall body in the sloping shape that provides a smaller diameter as it goes upwardly, a variable portion having a horizontal portion and a sloping portion and being extended at a small thickness in the shape of being contracted in a stepwise manner upwardly from the peripheral surface of the upper side of the supporting portion, a ceiling portion with a maxi-flush loop at the center of the upper surface which blocks the upper side of the variable portion with a large thickness such that it can change the internal volume as the height is changed up and down according to a change of the variable portion caused by an external force, an outer flange which is formed widely outwardly along the peripheral surface of the lower end portion of the supporting portion and has a coupling recess formed convexly along the inner periphery and a mini-flush loop formed at one side of the upper surface, and a pair of hinge portions, each being extended from one side of the outer flange and each end being hinged to the protrusion of the overflow tube; and a rigid air housing formed in a cup shape that is protruded downwardly such that the inside can form an air room along with the inside of the air chamber, said air housing having a coupling flange extended widely outwardly along the peripheral surface of the upper end portion completely open so that it can be coupled to the coupling recess of the air chamber, a suction hole penetrated through the center of the bottom and an air vent penetrated through one side of the upper portion thereof.