Patent ID: 9204770
Filing Date: 2015-12-08
Classification: A47L

Abstract:
1. A cleaner head for a cleaning appliance, comprising: a housing having an upper surface and an underneath surface in which at least one suction opening is formed, the underneath surface having opposing side edges each comprising a first part which lies adjacent the suction opening or openings and forms a sharply-defined edge with the upper surface, the sharply defined edge having a first radius of curvature, and a second part which is located rearwardly of the suction opening or openings and is upwardly curved, the upwardly curved side edge of the second part having a radius of curvature substantially larger than the first radius of curvature, and a plurality of rearwardly extending portions, each rearwardly extending portion having opposing side edges which are upwardly curved, the upwardly curved side edges of the rearwardly extending portions having a radius of curvature substantially larger than the first radius of curvature, wherein the first part of each side edge is formed by a lower end of a side wall of the housing, each side wall lower end forming a sharply-defined edge with the suction opening.