ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,071, issued on Sept. 23, was assigned to BEIMING INTERNATIONAL CORP. (Taipei, Taiwan).
"Water pipe connection device" was invented by Fang-Chi Chang (Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A water pipe connection device includes a connecting tube, a fastening member, and a fixing unit. The connecting tube includes a tapering tube head and a tubular member. The fastening member is disposed in the tube head. The fixing unit is disposed in the tube head, and includes a fixing ring and a plurality of reverse toothed structures. A water pipe is clamped and positioned by teeth portions of the reverse toothed structures. When the wa...