A vacuum cleaner is provided having improved pressure loss characteristics. A fluid supply conduit in flow communication with an inlet to a cyclone is integrally formed as part of a cyclone bin. The present invention may be adapted for use with cyclonic separation devices of all types, including single-...http://www.google.es/patents/US6902596?utm_source=gb-gplus-sharePatente US6902596 - Air flow passage for a vacuum cleaner
