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:
Jun. 15, 2010
Filed:
Aug. 08, 2006
Seiji Matsuo, Kawagoe, JP;
Seiji Matsuo, Kawagoe, JP;
Denyo Kabushiki Kaisha, Tokyo-To, JP;
Abstract
A cooling fan for rotating machine having a sufficient cooling performance, mass production performance and easiness in mounting is provided. A centrifugal fan mounted to a rotating shaftof rotating machine for introducing a cooling air to the rotating machine, is provided with a hubmounted at the rotating shaft, a main plateformed in ring shape and disposed concentrically at the hub, a side platein ring shape having the outer circumference smaller than the inner circumference of the main plate and formed integrally with the hub so that it is disposed with an interval to the main plate in the axial direction of the rotating shaft, and a plurality of impeller bladesimplanted on the hub and disposed along the axial direction of the rotating shaft and regularly in the radial direction so as to connect the main plate to the hub to form a space between the main plate, the side plate and the hub, some impeller bladesof said impeller blades being constituted to reach the outermost circumference portion in the radial direction, while the othersreaching only the middle, wherein the main plate and the side plate are formed so that they are not overlapped with each other when seen from the axial direction of the rotating shaft.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile