ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,787, issued on April 7, was assigned to PROTEC Co. LTD. (Gyeonggi-do, South Korea).
"Diaphragm pump" was invented by Keon Hee Kim (Incheon, South Korea) and Sung Il Park (Gyeonggi-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a diaphragm pump. The diaphragm pump operates such that a viscous liquid is discharged by transferring a pressing force via a diaphragm that is elastically deformed. The diaphragm pump has a structure capable of rapidly and accurately discharging the viscous liquid of high viscosity by using a diaphragm. Also, the diaphragm pump is capable of effectively pressing the viscous liquid while preventing ...