Patent ID: 8496120

Claim:
Filter unit for the cleaning of fluids, characterised by a plurality of longitudinal and transverse elements ( 1 , 5 ) made of at least one filter material which is permeable to the fluids, which are connected to one another in such a way that a network with a plurality of meshes ( 20 ) is formed, through which the fluids enter the filter unit and can come into contact with the filter material forming the network, and also by a plurality of openings ( 10 ), which extend through the junction points formed by the longitudinal and transverse elements ( 1 , 5 ) of the network and through which the cleaned fluids can leave the filter unit, and further characterised in that the longitudinal and transverse elements ( 1 , 5 ) of the network are undulating in shape and are interwoven in such a way that the wave valleys of the longitudinal elements ( 1 ) engage in the wave peaks of the transverse elements ( 5 ) and vice versa, and that the waves have the shape of an isosceles trapezium.