ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,653, issued on Aug. 26, was assigned to General Electric Co. (Evendale, Ohio).
"Fast response active clearance systems with piezoelectric actuator in axial, axial/radial combined, and circumferential directions" was invented by Taehong Kim (Evendale, Ohio) and Tyler F. Hooper (Lynn, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Certain examples disclose and describe apparatus and methods to provide fast response active clearance system with piezoelectric actuator in axial, axial/radial combined, and circumferential directions. In some examples, an apparatus includes an actuator to control clearance between a blade and at least one of a shroud...