Patent
   D516194
Priority
Apr 26 2003
Filed
Aug 05 2003
Issued
Feb 28 2006
Expiry
Feb 28 2020
Assg.orig
Entity
unknown
9
7
n/a
The ornamental design for an axial fan with double impellers rotating in mutually opposite directions, as shown and described.

This article relates to an axial fan with double impellers rotating in mutually opposite directions to be used for cooling an electronic component. The fan takes in air through an opening provided at one of the ends of the article in an axial direction, and discharges the air out of an opening provided at the other end of the article in the axial direction. Inside the air intake opening, an impeller having five blades is installed. Inside the air discharge opening, an impeller having four blades is installed. The impeller having five blades and the one having four blades rotate in an opposite direction to each other.

FIG. 1 is a front view of our new design.

FIG. 2 is a rear view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof.

FIG. 7 is a perspective view as viewed from the front of our new design; and,

FIG. 8 is a perspective view as viewed from the rear of our new design.

Ishihara, Katsumichi, Oosawa, Honami, Aizawa, Yoshihiko

Patent Priority Assignee Title
D602142, Apr 18 2007 Sanyo Denki Co., Ltd. Axial fan with double impellers rotating in mutually opposite directions
D619697, Mar 05 2009 Minebea Motor Manufacturing Corporation Axial fan
D620096, Dec 14 2009 Spinner fan
D632778, Nov 19 2009 SPAL AUTOMOTIVE S R L Hub of an axial fan
D632779, Nov 19 2009 SPAL AUTOMOTIVE S R L Hub of an axial fan
D637706, Jul 16 2010 Minebea Co., Ltd.; Minebea Motor Manufacturing Corporation Axial-flow blower
D639924, Jan 25 2008 ebm-papst St. Georgen GmbH & Co. KG Axial fan
D732655, Nov 21 2013 SANYO DENKI CO LTD Fan
D938568, Mar 29 2018 NIDEC CORPORATION Blower fan
Patent Priority Assignee Title
5839205, Sep 08 1997 Electric fan using multiple fan blades to raise air output pressure
6157104, May 31 1995 Sanyo Denki Co., Ltd. Electronic component cooling apparatus
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 10 2003OOSAWA, HONAMISANYO DENKI CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0144220967 pdf
Jun 10 2003ISHIHARA, KATSUMICHISANYO DENKI CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0144220967 pdf
Jun 10 2003AIZAWA, YOSHIHIKOSANYO DENKI CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0144220967 pdf
Aug 05 2003Sanyo Denki Co., Ltd.(assignment on the face of the patent)
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