US Patent Issued to YAMAZAKI MAZAK on April 1 for "Rotary shaft locking device, machining head, and multi-tasking machine" (Japanese Inventors)

ALEXANDRIA, Va., April 2 -- United States Patent no. 12,263,551, issued on April 1, was assigned to YAMAZAKI MAZAK Corp. (Niwa-gun, Japan).

"Rotary shaft locking device, machining head, and multi-tasking machine" was invented by Shinya Nakamura (Niwa-gun, Japan), Hiroto Sasaki (Niwa-gun, Japan) and Kimihiko Sato (Niwa-gun, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary shaft locking device includes a rotary shaft, a first angular contact ball bearing, a support, and an actuator. The rotary shaft is rotatable about a first axis and has a first contact surface. The first angular contact ball bearing includes an inner ring connected to the rotary shaft, an outer ring, and a plurality of balls dis...