ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,958, issued on May 13, was assigned to DROPSA S.p.A. (Milan).
"Lubricant metering device" was invented by Walter Divisi (Monaco, Monaco).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lubricant metering device includes a cup-shaped body with a supply passage coupled to a valve element, a hollow tubular body with a free end facing the valve element, a piston slidingly sealed inside the cup-shaped body and along an external surface of the tubular body, an elastic element exerting a load on the piston towards the supply passage, delineating an accumulation chamber facing the valve element and a dispensing chamber in constant communication with the cav...