AIR SWEEPING APPARATUS

摘要

An air sweeping apparatus having a head assembly (120), a debris conveyer (80) and a receptacle (30). The head assembly includes a front skirt (140) which is selectively positionable away from a surface to be cleaned to enable debris of different densities and sizes to be collected. After the front skirting of the head assembly is moved past debris, the debris becomes entrained within a flow of air formed by a line of pressurized air as it traverses the surface and the interior surface of the main chamber of the head assembly. When debris reaches the output end of the main chamber it is transported to a debris receptacle by a low pressure conduit which discharges entrained debris into a first hopper and through a filter element onto a second hopper. The air stream is pressurized and directed to the input portion of the head assembly. A portion of this high pressure air flow is directed back towards a third hopper in the receptacle where it is passed through a filter and exhausted.