ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,231, issued on July 21, was assigned to Weir Minerals Netherlands B.V. (Venlo, Netherlands).
"Valve" was invented by Johannes Petrus Stroeken (Roermond, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve is described that includes: a housing (20); a flow path connecting an inlet and an outlet in flow communication; a valve seat (28) positioned in the flow path; and a valve body which is displaceable between a closed position and an open position. The valve body includes a resiliently deformable elastomeric seal (38) having (i) a contact surface (74) which is complementary to and abuts against the valve seat and (ii) a protrusion (84)...