US Patent Issued to ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT on Nov. 11 for "Connecting pipe assembly and control valve assembly with connecting pipe assembly" (Chinese Inventor)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,562, issued on Nov. 11, was assigned to ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT Co. LTD. (Zhejiang, China).

"Connecting pipe assembly and control valve assembly with connecting pipe assembly" was invented by Jiafeng Zhu (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a connecting pipe assembly and a control valve assembly. The connecting pipe assembly includes a first connecting pipe, a connecting sleeve and a second connecting pipe; a first end of the first connecting pipe is disposed in the connecting sleeve, the connecting sleeve is provided with a first end and a second end opposite to each other, the first end of the c...