ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,027, issued on Oct. 28.
"Multi-layer composite water pipe and manufacturing method thereof" was invented by Jiuqiang Qian (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-layer composite water pipe comprises a pipe body having equally spaced corrugations defining that the pipe body comprises at least one of a compressed configuration and an extended configuration, and the pipe body is variable in length between the compressed configuration and the extended configuration; an outer side of the pipe body is provided with a first tubular element, the first tubular element is made of an elastic material, the outer side of the first...