Patent ID: 8209809

Claim:
A device for cleaning a sports field having artificial grass and particulate infill material; the device comprising: a) a first brush assembly comprising a first rotatable brush; b) a pair of wheels mounted on a wheel axle, wherein said pair of wheels comprises a first wheel and a second wheel, wherein said first wheel is connected to said first brush assembly in a manner such that rotation of the first wheel causes the first rotatable brush to rotate; c) a first container having a bottom and at least one side wall, wherein said container is positioned to receive waste and infill material from an artificial field upon rotation of said first brush assembly, and further wherein said first container includes openings in its bottom, said openings being sized and positioned to allow infill material to pass therethrough while retaining waste material; d) a vibrator affective for causing said first container to vibrate to promote separation of particulate infill material from waste contained in said container; and e) a second brush assembly; wherein said second brush assembly is connected to said second wheel in a manner such that rotation of the second wheel causes the second brush to rotate, and wherein said second brush is free to rotate at a speed independent of the rotational speed of said first brush.