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:
Dec. 17, 2019
Filed:
Jul. 01, 2016
Mitsubishi Electric Corporation, Tokyo, JP;
Seiji Nakashima, Tokyo, JP;
Takuya Teramoto, Tokyo, JP;
Katsuyuki Yamamoto, Tokyo, JP;
Yusuke Adachi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A propeller fan includes a boss on a rotation axis, and a blade at an outer circumferential portion of the boss. The blade includes a leading edge and a trailing edge. The blade includes a first area, a second area inward of the first area, and third areas outward of the second area. The third areas are located inward and outward of the first area, with the first area interposed between the third areas. The first area, the second area and the third areas each include at least one notch in the trailing edge. The notches satisfy the relationship 'P>P>P', where Pis the width of the notch in the first area, Pis the width of the notch in the second area, and Pis the width of the notch in each of the third areas.