US Patent 12121831 Backflush filter assembly

A filter element includes an inner filter basket including an elongated tubular portion having a first open end and a first closed end. The tubular portion defines a plurality of perforations therethrough. An outer surface of the tubular portion is seamless. A first annular brim extends outwardly from the open end of the tubular portion. The filter element also includes an outer filter basket having a second open end in which the inner filter basket is received. A second annular brim extends outwardly from the second open end of the outer filter basket. The fabric filter bag is disposed between the inner filter basket and the outer filter basket.