Centrifugal blower fan

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Description

FIG. 1 is a front perspective view of a centrifugal blower fan of the present invention;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a first side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a second side view thereof; and,

FIG. 8 is a bottom view thereof.

Claims

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

Referenced Cited
U.S. Patent Documents
2932445 April 1960 Hathaway
D234203 January 1975 Wrobel
6042335 March 28, 2000 Amr
D453827 February 19, 2002 Kuo et al.
D463021 September 17, 2002 Huang et al.
D486568 February 10, 2004 Chen et al.
6884033 April 26, 2005 Liao
D539408 March 27, 2007 Wu et al.
Foreign Patent Documents
D 1078706 July 2000 JP
D 1117943 August 2001 JP
D 1148255 July 2002 JP
D 1170096 April 2003 JP
D 1243646 June 2005 JP
D 1244316 June 2005 JP
Patent History
Patent number: D561324
Type: Grant
Filed: Jun 15, 2007
Date of Patent: Feb 5, 2008
Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka)
Inventors: Seiji Shirahama (Kasugai), Hitoshi Yoshikawa (Kasugai)
Primary Examiner: Lisa Lichtenstein
Attorney: Brinks Hofer Gilson & Lione
Application Number: 29/288,565
Classifications
Current U.S. Class: Fan Or Ventilator (D23/370)