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:
May. 05, 2020
Filed:
Aug. 24, 2016
Applicant:
Nidec Corporation, Kyoto, JP;
Inventor:
Ryosuke Hayamitsu, Kyoto, JP;
Assignee:
NIDEC CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 9/00 (2006.01); F04D 29/44 (2006.01); F04D 25/06 (2006.01); F04D 25/08 (2006.01); F04D 29/28 (2006.01); F04D 29/42 (2006.01);
U.S. Cl.
CPC ...
A47L 9/00 (2013.01); F04D 25/06 (2013.01); F04D 25/0606 (2013.01); F04D 25/08 (2013.01); F04D 25/082 (2013.01); F04D 29/281 (2013.01); F04D 29/4206 (2013.01); F04D 29/44 (2013.01); F04D 29/441 (2013.01);
Abstract
An air blowing device includes a motor, a ring-shaped cover, an impeller, and an impeller housing. The impeller includes a base portion and moving blades. The impeller housing includes an exhaust air guide portion. The ring-shaped cover includes a ring-shaped cover upper face portion and a ring-shaped cover outer edge portion having faces disposed across a gap that configures a flow path through which a fluid is guided. The gap has a first width where a distance between the faces is shortest, and which is smaller than a flow-in opening width where the fluid flows into the gap and a flow-out opening width where the fluid flows out.