Patent ID: 8561257

Claim:
A surface cleaning head for a vacuum cleaner for cleaning a surface comprising: (a) a front end, a rear end and sides extending between the front end and the rear end; (b) an enclosed air flow passage extending from an opening to an air outlet; (c) a plurality of wheels having a lower end; and, (d) an airflow chamber upstream of the opening comprising: (i) an upper wall; (ii) a rear depending wall extending downwardly from the upper wall, the rear depending wall having a lower end that is positioned above the lower end of the wheels; and, (iii) the upper wall and the rear depending wall defining an air flow chamber, having an open lower end whereby the surface is visible from the upper wall when the surface cleaning head is placed on the surface and the opening to the enclosed air flow passage is provided in a rear half of the upper wall of the air flow chamber forwardly of the rear depending wall and inwardly of the sides, the opening having a rearward end, and the open lower end extends from the front end to at least the rearward end of the opening.