Suction cleaning systems
AssigneeSpoutvac Manufacturing Pty Ltd
InventorKeith C. Harris
Life of this patent
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Abstract
A suction cleaning system comprises a liquid ring pump which draws dirt-laden air into an upstream separator to remove most of the large and small particulate matter. Between the separator and the pump, air having fine particulate matter is fed into a water chamber. In the water chamber a stream of air and water is generated, with the fine matter being entrained in suspension in the water whereby air free of the fine matter can be withdrawn from the chamber by the pump.
Claims10
A suction cleaning system comprising an air pump, first separating means in a suction line leading to the pump for separating substantially all particulate matter from the incoming airstream with the exception of fine particulate matter, second separating means upstream of the pump and downstream of the first separating means for separating the fine particulate matter from the incoming air, said second separating means comprising a water chamber containing a volume of water in a liquid state, means for feeding the incoming air and fine particulate matter into the water chamber in a multiciplicity of fine streams at a position below the liquid water level therein to generate an air and water stream with the chamber above the liquid water level whereby the particulate matter is held in suspension in the water, and means for causing air substantially free from the suspended particulate matter to be withdrawn from the chamber for passage through the pump.
Dependencies are inferred from the claim text.