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:
Aug. 30, 2022
Filed:
Feb. 13, 2020
Applicant:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Ryoji Okabe, Tokyo, JP;
Masami Kamiya, Tokyo, JP;
Kentaro Shindo, Tokyo, JP;
Takahiro Tachibana, Tokyo, JP;
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 99/00 (2010.01); B29C 70/34 (2006.01); F01D 5/28 (2006.01); B29L 31/08 (2006.01);
U.S. Cl.
CPC ...
B29D 99/0025 (2013.01); B29C 70/345 (2013.01); F01D 5/282 (2013.01); B29L 2031/08 (2013.01); F05D 2300/603 (2013.01);
Abstract
A composite blade made of prepreg obtained by impregnating reinforcement fibers with resin and curing the resin-impregnated reinforcement fibers, the composite blade including: a blade root provided on a base end and fitted into a blade groove; an airfoil provided extending from the blade root toward a tip end; and a metal patch provided between the blade groove and the blade root and placed on the blade root. The metal patch includes a plurality of projections protruding toward the blade root.