ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,278, issued on April 14, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).
"Through-casing guide vane mechanism for gas turbine engines" was invented by Tyler Richardson (Toronto) and Nathan Tomes (Hamilton, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems for actuating a plurality of guide vanes arranged about an engine axis include a unison ring is operably connected to each of the guide vanes to impart rotation to the guide vanes about a respective guide vane axis. A guide vane actuator assembly includes an actuator, an actuating rod, a boss rod connected to the actuating rod with the actuating rod connected to a slo...