Patent ID: 6350302
Filing Date: 2002-02-26
Classification: B01D

Abstract:
An air filtration system, comprising:a filter tank for holding a volume of water; said filter tank having a bulkhead wall therein dividing said filter tank into first and second compartments, said bulkhead wall having a hole therethrough to permit passage of water between said first and second compartments of said filter tank; a mesh screen substantially covering said hole of said bulkhead, said mesh screen having a plurality of apertures of a predetermined size therethrough to prevent passage therethrough of objects greater than said predetermined size of said apertures of said mesh screen; air intake conduit being fluidly connected to said first compartment of said filter tank, said air intake conduit being for drawing unfiltered air and debris into said filter tank from a location; a water supply conduit being fluidly connected to said filter tank, said water supply conduit fluidly connecting said filter tank to a water reservoir for supplying water to said filter tank; said water supply conduit having a water control valve for selectively opening and closing said water supply conduit; a vacuum device for drawing air out of said filter tank, said vacuum device having an intake fluidly connected to said second compartment of said filter tank for drawing air from said filter tank into said vacuum device; said vacuum device having a first return conduit for receiving air drawn into said vacuum device through said intake of said vacuum device, said first return conduit of said vacuum device returning air to the location of the air intake; a holding tank adapted for holding water therein; a main drain conduit fluidly connecting said filter tank to said holding tank; a sewer drain conduit being fluidly connected to said holding tank to permit passage of water out of said holding tank; and a stopper assembly for selectively opening and closing said main drain conduit.