The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2011
Filed:
Oct. 22, 2008
David Benjamin Smith, Glasgow, GB;
David Benjamin Smith, Glasgow, GB;
Hoover Limited, Merthyr Tydfil, GB;
Abstract
A cyclonic separation apparatus comprises a plurality of series-connected separation stages, each comprising a plurality of cyclone separatorsconnected in parallel and disposed in a generally annular arrangement about a main vertical axis of the apparatus, with their respective longitudinal cyclone axes extending parallel to the main axis. The successive separation stagesin the direction of fluid flow are disposed radially inwardly of each other with respect to the main axis of the apparatus and are also vertically staggered upwardly, so that the outletof one separation stageleads directly into the inletof the next downstream stage. The multi-stage, series connected cyclone separators of the apparatus provide a high separation efficiency, yet the annular arrangement of the stagesmakes the apparatus compact and enables the apparatus to be utilized in a vacuum cleaner.