US Patent Issued to Zhejiang Dunan Artificial Environment on Oct. 20 for "Valve needle component and flow regulating valve" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,452, issued on Oct. 20, was assigned to Zhejiang Dunan Artificial Environment Co. Ltd. (Shaoxing, China).

"Valve needle component and flow regulating valve" was invented by Yuchen He (Shaoxing, China), Leqiang Liu (Shaoxing, China), Yonghao Chen (Shaoxing, China) and Guanjun Xu (Shaoxing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided in the present invention are a valve needle component and a flow regulating valve. The valve needle component includes: a screw, wherein the screw comprises a first rod section, a second rod section and a third rod section which are connected in sequence, the outer diameter of the first rod section is gr...