Patent ID: 8393031

Claim:
A swimming pool cleaner comprising: a. a body comprising an inlet, an outlet, a filtration chamber, and a rear; and b. a filtering device positioned between the inlet and the outlet and comprising: (i) a first shell having (A) an opening with a first cross-section and (B) peripheral filtering walls extending toward the rear of the body so as to define a debris recovery space in which debris entrained in water entering the opening is retained; and (ii) a second shell fitted to the first shell so as to close the opening thereof except for a water inlet passage which forms a water inlet opening into the debris recovery space; and in which (i) the water inlet opening has a smaller cross-section than the first cross-section, (ii) the first and second shells are configured to be fitted together to form an integral filtering casing mounted in the filtration chamber, (iii) the filtering casing is removable in one piece from the filtration chamber when the body is positioned upright on a horizontal surface, and (iv) when the filtering casing is removed in one piece from the filtration chamber of the body, one of the first and second shells may be movable relative to the other for emptying debris retained in the debris recovery space.