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:
Oct. 01, 2019
Filed:
Dec. 20, 2013
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Raman Warikoo, Mississauga, CA;
Krishna Prasad Balike, Mississauga, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F01D 5/00 (2006.01);
U.S. Cl.
CPC ...
F01D 5/14 (2013.01); F01D 5/005 (2013.01); F05D 2220/36 (2013.01); F05D 2230/10 (2013.01); F05D 2250/193 (2013.01); F05D 2250/71 (2013.01); Y10T 29/49318 (2015.01);
Abstract
A method for repairing a blade in a gas turbine engine comprises the steps of: isolating the damage on the airfoil of the blade; forming a cut back in the shape of elongated 'D' shaped recess with a pair of fillets, a depth and a longitudinal axis of the 'D' shaped recess having a length along the leading or trailing edge of the airfoil; and the fillets having a respective radius.