ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,675, issued on Dec. 16.
"Tool clamping assembly and sharpener" was invented by Tirui Xie (Chongqing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tool clamping assembly and a sharpener are provided. The tool clamping assembly includes an arm body, its first end is connected with a sharpening frame, the arm body is provided with a top pin and a driving member, the driving member drives the top pin to move along an axial direction of the arm body; a clamping arm component, which includes a first clamping arm and a second clamping arm, the two clamping arms are mirror symmetric and are connected by a rotation axis. The rotation axis is connec...