The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2003
Filed:
Apr. 04, 2001
Masashi Kamada, Osaka, JP;
Tadashi Ohnishi, Osaka, JP;
Manabu Kato, Osaka, JP;
Hiroki Ishihara, Osaka, JP;
Tatsuo Fujiwara, Osaka, JP;
Masaki Yamamoto, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A frame ( ) is provided around the perimeter of the air outlet ( ) of the fan ( ). The frame ( ) includes a plurality of board-shaped ribs ( ) extending radially outward from the vicinity of the center of the frame ( ) in the direction of the radius of the fan ( ). The frame ( ) also includes a plurality of cylindrical ribs ( ) integrated with the plurality of board-shaped ribs ( ), and arranged concentrically around the rotation axis (O-O′) of the fan ( ) at predetermined intervals in the direction of the radius of the fan ( ). The board-shaped ribs ( ) are curved outward in the direction of rotation of the fan ( ) and inclined in the direction of air flowing from the fan ( ).