US Patent 10448797 Vacuum cleaner

A vacuum cleaner including a debris collection container having an outer perimeter and a lid removably coupled to the debris collection container. The lid has a periphery that extends along the outer perimeter of the debris collection container. The vacuum further includes a suction source coupled to the lid and removable from the debris collection container with the lid. The suction source includes a motor and an impeller driven by the motor. The vacuum cleaner further includes an exhaust passageway downstream from the suction source for discharging an airflow from the debris collection container. The exhaust passageway extends radially outward from the impeller and toward the periphery of the lid. The vacuum cleaner further includes an exhaust outlet port in communication with the exhaust passageway. The exhaust outlet port extends along a majority of the periphery of the lid.