US Patent Issued to ZHEJIANG UNIVERSITY on May 5 for "Active pressure compensator for deep-sea sampling and pressure compensation method thereof" (Chinese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,398, issued on May 5, was assigned to ZHEJIANG UNIVERSITY (Hangzhou, China).

"Active pressure compensator for deep-sea sampling and pressure compensation method thereof" was invented by Shijun Wu (Hangzhou, China), Zhiheng Chen (Hangzhou, China), Yiqiang Dai (Hangzhou, China) and Canjun Yang (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An active pressure compensator for deep-sea sampling includes a spring chamber, a cam piston pump, and a circuit chamber; the spring chamber is configured to provide compensation liquid for the cam piston pump; the cam piston pump is configured to be able to draw liquid from the spring chamber and pum...