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:
Jun. 07, 2011
Filed:
Dec. 19, 2007
Applicant:
David Benjamin Smith, Glasgow, GB;
Inventor:
David Benjamin Smith, Glasgow, GB;
Assignee:
Hoover Limited, Pentrebach, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 45/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cyclonic vacuum cleaner comprises a first stagecomprising a single cyclone separator for separating heavier dirt and dust particles and a second stagecomprising a plurality of cyclone separatorsarranged in parallel in a plurality of groups, each group of cyclone separatorscomprising a respective inlet duct, each inlet ductbeing connected at its upstream end to the first stageand at its downstream end to the cyclone separatorsof its respective group.