ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,997, issued on March 18, was assigned to Rolls-Royce PLC (London).
"Spline cleaning device" was invented by Christopher J. Preece (Derby, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A spline cleaning device for cleaning splines formed within a component of a gas turbine engine. The spline cleaning device comprises: a central support; a central support sleeve that surrounds and is movable with respect to the central support; a scraper having protrusions that substantially correspond to the splines, the scraper being attachable to the central support sleeve, and configured to remove surface contaminants from the surface of the spline...