US Patent 7694383 Upright vacuum cleaner with removable power head

A vacuum cleaning apparatus includes a vacuum cleaner base and a handle configured to be attached to the base. A nozzle is configured for the base to draw air through the nozzle to clean the floor as the nozzle is moved along the floor by a user pushing the base by the handle. A power head assembly includes a power head having a brushroll and an electric motor that drives the brushroll. The assembly further includes a tube structure configured to connect the power head to the base for the base to draw air through the power head and the tube structure to clean the floor as the power head is moved along the floor by a user pushing the tube structure.