US Patent Issued to SHANGHAI VISION MECHANICAL JOINT on Nov. 3 for "Pipe fitting seal and pipe connecting structure" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,884, issued on Nov. 3, was assigned to SHANGHAI VISION MECHANICAL JOINT Co. LTD (Shanghai).

"Pipe fitting seal and pipe connecting structure" was invented by Xubin Lu (Shanghai), Zhigang Lu (Shanghai), Jun Wu (Shanghai) and Zhibing Zhai (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pipe fitting seal includes a sealing ring for being arranged between two pipe elements, a connecting base is arranged on an outside of the sealing ring, an outer biasing portion is arranged on an inner of the connecting base, a first abutting surface is formed on an outer wall of the connecting base, the first abutting surface can be squeezed to drive the oute...