US Patent 8402599 Vacuum cleaner dirt cup and seal

A dirt cup for a vacuum cleaner including a container, a tube, a lid, a first chamber, a second chamber, and a seal. The container includes an open bottom end. The lid is coupled to the container. The lid includes an aperture that extends through the lid. The lid is movable between a closed position where the lid covers the open bottom end and an open position for emptying the container through the open bottom end. The seal is coupled to the lid and includes a flange and a post that extends from the flange. The post extends into the aperture of the lid to couple the seal to the lid. The seal is positioned between the lid and the tube when the lid is in the closed position to inhibit airflow between the first chamber and the second chamber.