Patent ID: 6494929
Filing Date: 2002-12-17
Classification: A47L,B01D,B04C,Y10S

Abstract:
A suction cleaner comprising a housing whose interior is at reduced pressure in operation, an upwardly open liquid receptacle in the housing, and a cyclone above the receptacle in the housing, the cyclone having a curvilinear peripheral wall, a top wall extending inwards from the entire periphery of the peripheral wall, and a bottom wall extending substantially horizontally inwards from the entire periphery of the peripheral wall and having an outlet spaced from the peripheral wall and communicating with the receptacle, and the peripheral wall having an inlet port for an incoming stream of air carrying dirt and liquid, the inlet port communicating with the exterior of the housing, being in the vicinity of the bottom wall and directing the incoming stream substantially tangentially to the peripheral wall so that liquid carried by the incoming stream is deposited on the peripheral wall, accumulates on the substantially horizontal bottom wall in the cyclone, and circulates as a body of dirt-laden liquid while coming repeatedly into contact with the incoming stream, excess dirt-laden liquid escaping through the outlet to the receptacle.