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:
Feb. 05, 2013
Filed:
Nov. 23, 2007
Applicants:
Hiroyuki Ochiai, Tokyo, JP;
Takashi Furukawa, Tokyo, JP;
Mitsutoshi Watanabe, Tokyo, JP;
Tetsuji Fujimura, Tokyo, JP;
Inventors:
Hiroyuki Ochiai, Tokyo, JP;
Takashi Furukawa, Tokyo, JP;
Mitsutoshi Watanabe, Tokyo, JP;
Tetsuji Fujimura, Tokyo, JP;
Assignee:
IHI Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A blade as a main body of a rotor blade has a suction side made convex and a pressure side made concave so as to have an aerofoil profile. A squealer tip having a back face continuous to the suction side and a front face matching with a center plane of the blade is formed at a distal end of the blade. The front face is coated with a hard coating.