ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,860, issued on June 17, was assigned to APTAR FRANCE SAS (Le Neubourg, France).
"Metering valve" was invented by Philippe Le Faou (Ecully, France) and Benjamin Manon (Ecully, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "Metering valve having a valve body (10) containing a metering chamber (20) defined by a chamber insert (40) and a top and a bottom seal. The chamber insert (40) has a cylindrical wall (49) with an upper edge (41) cooperating with the top seal and a lower edge (43) with the bottom seal. A valve shut-off element (30) slides between rest position and dispensing positions. The valve shut-off element is urged towards its rest pos...