US Patent Issued to SONY GROUP on April 8 for "Propeller attaching device and propeller attaching method" (Japanese Inventor)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,577, issued on April 8, was assigned to SONY GROUP Corp. (Tokyo).

"Propeller attaching device and propeller attaching method" was invented by Tatsuo Makii (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A propeller attaching device includes a coupler that rotates integrally with an output shaft of a motor, a movable body, and a resilient body. The coupler allows attachment/detachment of an attachment portion of the motor by rotation of the propeller in the circumferential direction and restricts the movement of the propeller in an axial direction. The movable body includes a second receiving portion, and is supported by the coupler so as to be...