ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,447, issued on July 7, was assigned to ProMinent GmbH (Heidelberg, Germany).
"Diaphragm fastening to the drive of metering pumps" was invented by Alexander Bubb (Plankstadt, Germany), Christian Arnold (Weinheim, Germany) and Tobias Winkler (Sandhausen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a metering pump comprising (i) a diaphragm return device comprising tie rod and (ii) a diaphragm assembly comprising a mechanically driven elastic diaphragm having a flexible region between the clamping surface, which serves to seal the delivery chamber, at the periphery of the diaphragm and a diaphragm core which s...