Patent ID: 6260234
Filing Date: 2001-07-17
Classification: A47L,B01D,B04C,Y10S

Abstract:
An upright vacuum cleaner comprising:an upright housing;a nozzle base hingedly interconnected with the upright housing, said nozzle base including a main suction opening in an underside thereof;a cyclonic airflow chamber defined in said upright housing and adapted for separating dust and dirt from an airstream, said main suction opening being in fluid communication with said cyclonic airflow chamber;an airflow source located in one of said upright housing and nozzle base and having an airflow inlet in fluid communication with said cyclonic airflow chamber and an airflow outlet;a main filter assembly located in said cyclonic airflow chamber for filtering dust and dirt from the airstream that passes through said cyclonic airflow chamber, said main filter assembly extending upwardly within said cyclonic airflow chamber from a floor of a dirt container portion of said housing that defines a lower portion of said cyclonic airflow chamber and that is adapted for receiving and retaining dirt and dust separated from said airstream;a conduit depending into said cyclonic airflow chamber from an upper wall of said housing, said conduit axially aligned and mating with an upper end of said main filter assembly whereby said main filter assembly and said conduit together define a hollow column structure in said cyclonic airflow chamber.