ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,834, issued on Aug. 4, was assigned to Weir Minerals Netherlands B.V. (PH Venlo, Netherlands).
"Valve" was invented by Johannes Stroeken (JS Roermond, Netherlands) and Frank Ummenthun (VH Venlo, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve (19.1) is described that includes: a flow path connecting a housing inlet (42) and outlet (44); a valve seat (48)) positioned in the flow path; a closure member (50) displaceable between a closed position and an open position; and a throttle element (52) displaceable together with the closure member. The throttle element comprises a front portion (70) of increasing cross-sectional area, a frus...