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:
Nov. 13, 2018
Filed:
Nov. 24, 2015
Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;
Yukihiro Higuchi, Fukuroi, JP;
Naoya Murakami, Fukuroi, JP;
Minebea Co., Ltd., Nagano, JP;
Abstract
A centrifugal fan includes: a casing; and an impeller that is attached to a rotation shaft of a motor, wherein the casing has an upper suction port and a lower suction port, wherein the impeller has a rotor hub, a plurality of blades arranged around the rotor hub in a circumferential direction, and a main plate coupled to the rotor hub and connects the blades in the circumferential direction, and wherein an inclination of an outer edge of the blades at an upper blade portion that is located above the main plate with respect to a plane parallel to the rotation shaft and an inclination of the outer edge of the blades at a lower blade portion that is located below the main plate with respect to the plane parallel to the rotation shaft are set to be in the same direction.