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.

Date of Patent:
Jan. 24, 2012

Filed:

Jan. 30, 2007
Applicants:

Koichiro Iida, Hyogo, JP;

Junji Iwatani, Hyogo, JP;

Inventors:

Koichiro Iida, Hyogo, JP;

Junji Iwatani, Hyogo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 1/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

An axial-flow fluid machine blade which achieves reduction of the frictional loss of the blade and provision of a high surge-resistant property is provided. An axial-flow fluid machine bladeused for an axial-flow fluid machine includes a leading edgeprojecting at the tip portion and the root portion thereof toward the upstream side and a trailing edgeprojecting at the tip portion, the mid-span portion and the root portion thereof toward the downstream side.


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