Patent 6974488 was granted and assigned to Dyson (company) on December, 2005 by the United States Patent and Trademark Office.
A vacuum cleaner with an external surface incorporates a cyclonic separating apparatus that includes a plurality of cyclones arranged in parallel with one another. The cyclones each have a tapered body with an outside wall and are arranged so that at least a part of each outside wall forms part of the external surface of the vacuum cleaner.