US Patent 7805804 Steerable upright vacuum cleaner

A steerable upright vacuum cleaner includes an upright section including a dirt collecting portion, a collar on which the upright section is mounted and base section to which the collar is attached. The upright section is mounted on the collar such that the upright section pivots around a first axis with respect to the collar. The base section is attached to the collar such that the collar pivots around a second axis with respect to the base section. The second axis is approximately perpendicular to the first axis. The base section includes a nozzle that communicates with the dirt collecting portion.