Title:
Propeller fan
United States Patent D755945


Inventors:
Arai, Toshikatsu (Tokyo, JP)
Kikuchi, Hitoshi (Tokyo, JP)
Takahashi, Tsutomu (Tokyo, JP)
Murakami, Tatsushi (Tokyo, JP)
Aoki, Hiromichi (Tokyo, JP)
Fukui, Tomoya (Tokyo, JP)
Application Number:
29/543177
Publication Date:
05/10/2016
Filing Date:
10/21/2015
Assignee:
MITSUBISHI ELECTRIC CORPORATION (Tokyo, JP)
Primary Class:
Other Classes:
D23/416
International Classes:
(IPC1-7): 2304
Field of Search:
D23/411-414, D23/380, D23/324, D23/330, D23/332, D23/335, D23/353-369, D23/370-379, D23/381-385, D23/499, D21/455, D21/458, 415/179, 415/182.1, 416/62, 416/93R, 416/100, 416/182, 416/189, 416/238, 416/244R, 416/246, 416/247R, 416/223R, 417/200, 417/423.1, D13/175, D13/179, D12/214, D12/211
View Patent Images:
US Patent References:
9097261Axial fan with flow guide bodyAugust, 2015Haaf
D732655FanJune, 2015Ueno et al.
D726300FanApril, 2015DeFilippis
D727490Fan bladeApril, 2015HatzD23/413
20140334952RADIATOR FAN OF A MOTOR VEHICLENovember, 2014Ziegler417/423.1
20140286786AXIAL OR DIAGONAL FAN WITH TRIP EDGE ON THE ROTOR BLADESeptember, 2014Ragg et al.
20140056710Propeller For Ventilator, With A Variable Chord LengthFebruary, 2014Henner416/189
20140003933AXIAL FLOW FANJanuary, 2014Inada et al.
D688783FanAugust, 2013DeFilippis
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20050074336HUB OF FAN WHEEL WITH IMPROVED ATTACHMENT FOR METAL CASEApril, 2005Li et al.
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5616004Axial flow fanApril, 1997Alizadeh
5226804Propeller blade configurationJuly, 1993Do



Other References:
Impellers. (Design—© Questel). orbit.com [online PDF]8 pages. File date:Jan. 24, 2013 Print date:Dec. 9, 2013 [retrieved on Aug. 11, 2015]. Retrieved from Internet: .
Exhaust Ventilator. ebay.com [online] 1 page Upload as early as Aug. 8, 2013 [retrieved on Aug. 11, 2015] Retrieved from Internet: .
Primary Examiner:
Hattan, Susan Bennett
Assistant Examiner:
Horse, Marie Fast
Attorney, Agent or Firm:
Studebaker & Brackett PC
Claims:
CLAIM

1. The ornamental design for a propeller fan, as shown and described.

Description:

FIG. 1 is a perspective view of the front, right, and bottom side of a propeller fan showing with the present 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 plan view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a cross sectional view at a line 16-16 shown in FIG. 2.