ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,052, issued on Sept. 29, was assigned to STATUS D.O.O. METLIKA (Metlika, Slovenia) and ZWILLING J.A. HENCKELS AG (Solingen, Germany).
"Portable vacuum pump with protection against suction of liquids" was invented by Marko Culig (Metlika, Sierra Leone) and Yangmin Hu (Shenzhen City, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A portable vacuum pump with protection against suction of liquids includes at least two sensors for sensing liquid at the entry of an air suction channel of the pump. The sensors are connected to a controller of the pump that is arranged to terminate pumping (vacuuming) upon sensing liquid with the sensor. The two sens...