Centrifugal fan

- Sanyo Denki Co., Ltd.
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Description

FIG. 1 is a front elevation view of a centrifugal fan embodying our design, shown in an environment of use;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a cross-sectional view thereof, taken along line 7-7 of FIG. 4;

FIG. 8 is a cross-sectional view thereof, taken along line 8-8 of FIG. 4;

FIG. 9 is a cross-sectional view thereof, taken along line 9-9 of FIG. 4;

FIG. 10 is a perspective view thereof;

FIG. 11 is a front elevation view thereof, shown at an enlarged scale and with the environment removed;

FIG. 12 is a rear elevation view thereof;

FIG. 13 is a right side elevation view thereof;

FIG. 14 is a left side elevation view thereof;

FIG. 15 is a top plan view thereof; and,

FIG. 16 is a bottom plan view thereof.

The evenly-spaced broken lines depict environmental subject matter only and form no part of the claimed design. The unevenly-spaced broken lines show the boundaries of the claimed design only and form no part of the claimed design.

Claims

We claim the ornamental design for a centrifugal fan, as shown and described.

Referenced Cited
U.S. Patent Documents
D209250 November 1967 Grad
D487310 March 2, 2004 Li et al.
D507637 July 19, 2005 Chiu et al.
D637276 May 3, 2011 Miyabara et al.
20120087813 April 12, 2012 Yen et al.
Foreign Patent Documents
H07-14192 March 1995 JP
Patent History
Patent number: D665900
Type: Grant
Filed: Dec 22, 2010
Date of Patent: Aug 21, 2012
Assignee: Sanyo Denki Co., Ltd. (Tokyo)
Inventors: Kevin Yen (Nagano Prefecture), Jiro Watanabe (Nagano Prefecture), Hiromitsu Kuribayashi (Nagano Prefecture), Shigekazu Mitomo (Nagano Prefecture)
Primary Examiner: Garth Rademaker
Attorney: Rankin, Hill & Clark LLP
Application Number: 29/381,711
Classifications
Current U.S. Class: Fan Element (D23/411)