ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,922, issued on March 3.
"Ratchet wrench structure" was invented by Cheng-Pu Yang (Changhua County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ratchet wrench structure includes a first body, a ratchet wheel, a second body, a control rod, and a magnetically attractive block. The first body has a first receiving recess. The ratchet wheel is pivotally mounted in the first receiving recess and has a mounting portion, a second receiving recess, and a first abutting edge. The second body is mounted in the second receiving recess and has a third receiving recess, a fourth receiving recess, and a second abutting edge. The control rod is mounted ...