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:
Jul. 20, 2021
Filed:
Feb. 28, 2017
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Takahide Tadokoro, Chiyoda-ku, JP;
Naohiko Honma, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
In a propeller fan, an air-sending device and an air-conditioning apparatus, between a leading edge and trailing edge of each of blades, a starting point at which the first one of first maximum points is located is closer to the leading edge than a starting point at which the first one of second maximum points are located, distances Lbetween minimum points and the first maximum points vary such that the distance Lincreases from the starting point at which the first one of the first maximum points is located, toward the trailing edge, and distances Lbetween a connection point and the second maximum points vary in accordance with the position of each of the second maximum points such that the distance Lincreases from the starting point at which the first one of the second maximum points is located, toward the trailing edge.