ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,849, issued on June 17, was assigned to DAOZ INTERNATIONAL HOLDING Ltd. (Wan Chai, Hong Kong).
"Diaphragm valves" was invented by Sheng-Hun Jeng (HsinChu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve comprises a chamber allowing a diaphragm moving along the chamber to block a channel. The channel comprises four sections. An end of a second section connects to an inlet of the chamber. A flow in the second section diverts to the chamber. An outlet of the chamber connects to an end of a third section. The flow in the third section returns from the chamber to an original direction. The end of the second section has a shape to be blocked...