ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,320, issued on April 21, was assigned to Textron Innovations Inc. (Providence, R.I.).

"Devices and methods to verify main rotor swashplate positioning" was invented by Chad R. Haugeberg (Arlington, Texas) and Bradley D. Linton (Mansfield, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device to verify main rotor swashplate positioning includes an inner surface of a first section and a gradient surface of a second section. The gradient surface of the second section may have a plurality of graduation indications. In one implementation, the inner surface of the first section at least partially defines a travel arc that is parallel to and conce...