ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,713, issued on May 26, was assigned to KENNAMETAL INC. (Latrobe, Pa.).

"Modular hydraulic chuck" was invented by Ruy Frota de Souza Filho (Latrobe, Pa.) and Santhosha Boregowda (Bangalore, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic chuck may include an expansion sleeve, a plurality of pistons, and an actuator ring. The expansion sleeve may include a bore. The plurality of pistons may be axially mounted in at least one piston chamber of the expansion sleeve. The actuator ring may be rotatably mounted relative to the expansion sleeve. The actuator ring may be configured to actuate the plurality of pistons in the at least one pisto...