US Patent Issued on Oct. 7 for "Ratchet wrench" (Taiwanese Inventor)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,357, issued on Oct. 7.

"Ratchet wrench" was invented by Tsan-Chang Lee (Taichung, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ratchet wrench includes a wrench body, a ratchet wheel, a pawl member, a direction control unit, a restriction member, and a retaining member. The wrench body has a first receiving recess, a second receiving recess, a first abutting face, a second abutting face, and a third receiving recess. The ratchet wheel has a ratchet portion. The pawl member has an engaging portion, a cavity, two first abutting portions, and two corners. The direction control unit includes a rotation member, a push member, and an elastic memb...