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United States Patent D812,732
Murakami ,   et al. March 13, 2018

Propeller fan


CLAIM The ornamental design for a propeller fan, as shown and described.
Inventors: Murakami; Tatsushi (Tokyo, JP), Takahashi; Tsutomu (Tokyo, JP), Arai; Toshikatsu (Tokyo, JP), Kikuchi; Hitoshi (Tokyo, JP), Aoki; Hiromichi (Tokyo, JP), Kousaka; Yuuya (Tokyo, JP)
Name City State Country Type




Assignee: Mitsubishi Electric Corporation (Tokyo, JP)
Appl. No.: D/543,908
Filed: October 29, 2015

Foreign Application Priority Data

May 14, 2015 [JP] 2015-010484

Current U.S. Class: D23/370
Current International Class: 2304
Field of Search: ;D23/382,370,378 ;D12/214

References Cited [Referenced By]

U.S. Patent Documents
6527838 March 2003 Volo
D586455 February 2009 Guthrie
7727299 June 2010 Knowles
D725257 March 2015 Huang
D736368 August 2015 Xu
D759227 June 2016 Lofy
D777901 January 2017 Whittemore
Primary Examiner: Underwood; Cynthia
Attorney, Agent or Firm: Studebaker & Brackett PC


FIG. 1 is a front, bottom and right side perspective view of a propeller fan, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is enlarged sectional view taken along line A-A of FIG. 3;

FIG. 9 is enlarged sectional view taken along line B-B of FIG. 3; and,

FIG. 10 is a rear, bottom, and left side perspective view thereof.

The broken lines of FIGS. 1-10 illustrate portions of the propeller fan that form no part of the claimed design.

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