US Patent Issued to Rolls-Royce North American Technologies on May 27 for "Retainer rings for vane assemblies used in gas turbine engines" (Indiana Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,979, issued on May 27, was assigned to Rolls-Royce North American Technologies Inc. (Indianapolis).

"Retainer rings for vane assemblies used in gas turbine engines" was invented by David L. Sutterfield (Indianapolis) and Aric Acius (Indianapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vane assembly includes an outer case, a plurality of vanes, and an inner body assembly. The outer case defines an outer boundary of a flow path of the vane assembly. The plurality of vanes extend radially inward from the outer case relative to a central axis. The inner body assembly is configured to secure the plurality of vanes radially relative to the centra...