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:
Oct. 01, 2019
Filed:
Apr. 01, 2015
Mitsubishi Electric Corporation, Tokyo, JP;
Makoto Kurihara, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A fan of the invention includes an impeller having a plurality of blades and rotating around a rotation axis, and at least one balance weight having at least one claw portion and attached to the impeller to correct the center of gravity of the impeller. The impeller has a circumferential convex portion formed along the circumferential direction, and on which the claw portion is hooked to restrict a range of movement of the balance weight in the radial direction of the impeller, and at least one radial concave-convex portion formed along the radial direction, and on which the claw portion is hooked to restrict the range of movement of the balance weight in the circumferential direction of the impeller.