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. 10, 2018
Filed:
Oct. 21, 2015
Applicant:
Dyson Technology Limited, Wiltshire, GB;
Inventors:
Charles Geoffrey Box, Swindon, GB;
Mark Andrew Johnson, Bath, GB;
Assignee:
Dyson Technology Limited, Malmesbury, Wiltshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 9/00 (2006.01); A47L 9/16 (2006.01); A47L 9/28 (2006.01); A47L 5/22 (2006.01); A47L 9/22 (2006.01); H02K 9/06 (2006.01);
U.S. Cl.
CPC ...
A47L 9/2889 (2013.01); A47L 5/22 (2013.01); A47L 9/00 (2013.01); A47L 9/165 (2013.01); A47L 9/1616 (2013.01); A47L 9/1633 (2013.01); A47L 9/1641 (2013.01); A47L 9/22 (2013.01); H02K 9/06 (2013.01); A47L 9/28 (2013.01);
Abstract
A vacuum cleaner having a dirt-separation stage and a vacuum motor for moving air through the dirt-separation stage. The vacuum motor includes an impeller driven by an electric motor. The impeller is then located upstream of the dirt-separation stage, the electric motor is located downstream of the dirt-separation stage, and at least part of the air discharged from the dirt-separation stage is used to cool the electric motor.