ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,891, issued on June 3, was assigned to KUANI GEAR Co. LTD (New Taipei, Taiwan).
"Pneumatic tool" was invented by Ming-Kun Cheng (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pneumatic tool has a body and a drive module. The body has a cylinder chamber, two bearing recesses, and two bearings. The cylinder chamber is formed in the body. The two bearing recesses are respectively disposed at a front side wall and a rear side wall of the body. The two bearings are respectively disposed in the two bearing recesses. The drive module is connected to the body and has a cylinder, a rotor, and two wear-resistant sheets. The cylinder is di...