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:
Mar. 22, 2022
Filed:
Feb. 27, 2017
Applicant:
Ratier-figeac Sas, Figeac, FR;
Inventor:
Bruno Seminel, Lissac-et-Mouret, FR;
Assignee:
RATIER-FIGEAC SAS, Figeac, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 15/14 (2006.01); B64C 11/20 (2006.01); B64D 25/00 (2006.01); B64C 11/00 (2006.01); G01H 1/00 (2006.01); G01M 7/02 (2006.01);
U.S. Cl.
CPC ...
G01M 15/14 (2013.01); B64C 11/00 (2013.01); B64C 11/20 (2013.01); B64D 25/00 (2013.01); G01H 1/003 (2013.01); G01M 7/025 (2013.01);
Abstract
A rotating system comprising two or more bladesmounted on a hub installed on a rotatable propeller shaft, each blade provided with a respective sensorarranged to detect response of the respective blade to harmonic excitation; and the system further comprising means configured to compare the response of the respective blade to that of the other blade(s).