ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,568, issued on Oct. 21.

"Dedicated tooling for split ball bearing assembly and installation into an aircraft engine compartment" was invented by Maciej Piotrowski (Rzeszow, Poland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tool for assembly of a ball bearing and for installation of the ball bearing into an aircraft engine compartment is provided. The ball bearing includes an outer bearing ring, bearing balls, a ball cage for holding the bearing balls and a squirrel cage adjacent to the outer bearing ring. The tool includes a guide including a first open end and a pusher into which the guide is insertable. The pusher includes a second open end ...