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 9951788 B1

Expired

Date of Patent:

Apr. 24, 2018

Filed:

Aug. 07, 2015

Impeller and blower

Applicant:

Nidec Corporation, Kyoto, JP;

Inventor:

Ryosuke Hayamitsu, Kyoto, JP;

Assignee:

NIDEC CORPORATION, Kyoto, JP;

Attorney:

Keating & Bennett, LLP

Primary Examiner:

Logan Kraft

Assistant Examiner:

Peter T Hrubiec

Int. Cl.

CPC ...

F04D 29/42 (2006.01); F04D 25/08 (2006.01); F04D 29/38 (2006.01); F04D 29/28 (2006.01);

U.S. Cl.

CPC ...

F04D 29/4253 (2013.01); F04D 25/08 (2013.01); F04D 29/282 (2013.01); F04D 29/384 (2013.01);

Abstract

An impeller is arranged to rotate about a central axis, and includes a disk-shaped portion arranged to extend radially with respect to the central axis, and a plurality of rotor blades arranged along a circumferential direction on one surface of the disk-shaped portion. Each rotor blade has one end arranged at an outer edge portion of the disk-shaped portion, and an opposite end arranged radially inward of the outer edge portion of the disk-shaped portion. The rotor blades include a plurality of first rotor blades each of which includes a first curvature portion and a plurality of second curvature portions. A center of the radius of curvature of the first curvature portion of each first rotor blade is arranged on a first side of the first rotor blade with respect to the circumferential direction. A center of the radius of curvature of each second curvature portion of each first rotor blade is arranged on a second side of the first rotor blade with respect to the circumferential direction. The first curvature portion is arranged radially inward of each second curvature portion. Regarding adjacent ones of the second curvature portions, the radius of curvature of the second curvature portion arranged radially outward is greater than the radius of curvature of the second curvature portion arranged radially inward.

Find Patent Forward Citations

Hayamitsu, Ryosuke. (2018). Impeller and blower (U.S. Patent No. 9951788). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9951788

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile