US Patent 8387350 Grass treatment device

A grass treatment device 801 that comprises a first roller 701 configured to contact a grass surface 802, a second roller 805 configured to contact the grass surface 802, a treatment tool 804 capable of treating the grass surface 804. The grass treatment device 801 further comprises adjustment means 303, 305 configured to allow an adjustment of a distance between the treatment tool 804 and the first roller 701, the adjustment capable of affecting a distance 807 between the tool 804 and the grass surface 802. The adjustment means 303, 305 further comprises graduation means configured to indicate to a user predetermined quantized intervals of the distance 807 between the tool 804 and the grass surface 802.