Patent ID: 7297188

Claim:
A floor screening system for use with a rotary floor machine having a powered drive, said floor screening system comprising: (a) screen driver including a power transfer interface to said powered drive and a facing having a periphery and arranged to move an abrasive screening element on a flooring surface in response to motion of said powered drive, said facing capable of frictionally reducing slippage between said abrasive screening element and said facing, said screen driver comprising a floor screening attachment attached beneath said rotary floor machine, said floor screening attachment having its own set of wheels, said set of wheels oriented to allow said floor screening attachment attached beneath said rotary floor machine to be tipped up from said flooring surface for replacing said abrasive screening element; (b) a dust collection plenum within said floor screening attachment adjacent to said periphery of said screen driver; (c) a cannister; (d) a volume of liquid having a level in said cannister; (e) a passageway for movement of air and a plurality of entrained particles from said dust collection plenum to a passageway outlet below said level of said liquid; (f) a mixer for mixing said liquid with said air and said particles from said passageway outlet to facilitate wetting of said particles with said liquid; (g) a separator receiving said mixture of said air, particles, and liquid from said mixer and extracting liquid and wetted particles from said air for return to said volume of liquid; and (h) a vacuum source creating a pressure differential between said dust collection plenum and an air outlet from said cannister.