Patent ID: 7073520

Claim:
Washing machine with a clog-proof lint filter ( 3 ) included in a water outlet circuit connecting a washing tub ( 1 ) of the machine with a drain pump ( 4 ), the lint filter ( 3 ) being removably inserted in a hollow cylindrical body ( 6 ) having an aperature ( 7 ) through which the lint filter ( 3 ) is able to be pulled out, the lint filter ( 3 ) comprising: a first end portion ( 8 ) which is adapted to perform as a plugging cap for the aperture ( 7 ) and is connected via longitudinal members ( 9 ) to an opposite second end portion ( 10 ), the second end portion being adjacent to a suction side of the drain pump ( 4 ), and a plurality of transversal walls ( 11 ) being provided between the first end portion ( 8 ) and the second end portion ( 10 ) and extending from the longitudinal members ( 9 ), said plurality of transversal walls ( 11 ) opposing each other, being spaced apart from each other, and being staggered relative to each other, said plurality of transversal walls ( 11 ) cooperating with an inner surface of the hollow body ( 6 ) to form a labyrinth-like flow-path towards the drain pump ( 4 ), and said inner surface being adjacent to a peripheral edge of at least one of said plurality of transversal walls ( 11 ) said inner surface and said peripheral edge defining a peripheral passageway, wherein one or more serrations ( 12 ), are provided in correspondence with said passageway ( 13 ) so as to retain possible foreign bodies and break down the air bubbles that are present in the liquor taken in by the drain pump ( 4 ).