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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.:

US 10309420 B1

PDFFull Text
Date of Patent:
Jun. 04, 2019

Filed:

Dec. 29, 2016

Fan

Applicant:

Dyson Technology Limited, Wiltshire, GB;

Inventors:

Jack Johnson, Bristol, GB;

Jean-Baptiste Blanc, Bath, GB;

Assignee:

Dyson Technology Limited, Malmesbury, Wiltshire, GB;

Attorney:

Morrison & Foerster LLP

Primary Examiner:

Carlos A Rivera

Assistant Examiner:

Danielle M Christensen

Int. Cl.
CPC ...
F04D 29/66 (2006.01); F04D 17/00 (2006.01); F04D 29/42 (2006.01); F04F 5/16 (2006.01); F04D 25/08 (2006.01); F04D 25/06 (2006.01); F04D 25/16 (2006.01); F04D 29/28 (2006.01); F04D 29/32 (2006.01); F04D 29/40 (2006.01); F04F 5/46 (2006.01); H02K 5/24 (2006.01); H02K 7/14 (2006.01);
U.S. Cl.
CPC ...
F04D 29/664 (2013.01); F04D 17/00 (2013.01); F04D 25/06 (2013.01); F04D 25/08 (2013.01); F04D 25/16 (2013.01); F04D 29/281 (2013.01); F04D 29/325 (2013.01); F04D 29/403 (2013.01); F04D 29/4226 (2013.01); F04D 29/663 (2013.01); F04D 29/665 (2013.01); F04F 5/16 (2013.01); F04F 5/46 (2013.01); H02K 5/24 (2013.01); H02K 7/14 (2013.01);
Abstract

A fan for generating an air current includes a body having an air inlet, and a nozzle connected to the body. The nozzle includes an interior passage for receiving an air flow from the body and an air outlet from which the air flow is emitted from the fan. The interior passage extends about an opening or bore through which air from outside the nozzle is drawn by air emitted from the air outlet. The body includes a duct having an air inlet and an air outlet, an impeller located within the duct for drawing the air flow through the duct, and a motor for driving the impeller. An annular guide member extends about the duct for guiding air from the air inlet of the body to the air inlet of the duct. The guide member defines with the duct an annular noise suppression cavity.

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