US Patent 8099829 Wet type suction cleaners

A wet type suction cleaner comprising a tank (10) having an inlet (22) for suction-induced air flow and an outlet leading to a fan for creating the suction: and a float valve assembly (30) including a housing (32) and a float member movable relative to the housing (32) to cause closure of the outlet; wherein the inlet (22) directs the suction air flow to impinge on a part (40) of the housing (32), and the housing (32) has an opening (54) leading to the outlet which opening (54) is at a part of the housing (32) facing away from the inlet (22), the housing (32) further comprising deflecting means (42) for deflecting impinged matter away from the opening (54).