ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,658, issued on June 17, was assigned to PRATT & WHITNEY CANADA CORP. (Quebec, Canada).
"Test blade for gas turbine engine and method of making" was invented by Masoud Roshan Fekr (St-Lambert, Canada) and Rana Foroutan (St-Lambert, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A test blade for a blade release test, including: an airfoil extending radially from a platform; and a root portion secured to the platform, the root portion having a first inner opening extending longitudinally from a leading edge of the root portion towards a trailing edge of the root portion, wherein the first inner opening extends from and is located within two seco...