ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,141, issued on Dec. 30, was assigned to TOYO AUTOMATION Co. LTD. (Tainan, Taiwan).

"Electric actuator" was invented by Kun-Cheng Tseng (Tainan, Taiwan) and Chuang-Jun Zhang (Tainan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electric actuator includes an outer cylinder, a sliding unit and a screw shaft. At least one guiding groove is provided in a hole wall of the outer cylinder. The sliding unit includes a nut member, a rotation-restricting member engaged on a first end of the nut member, and an output shaft engaged on a second end of the nut member. The rotation-restricting member has at least one guiding block movably combined in th...