ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,267, issued on April 21, was assigned to LB Bentley Ltd. (Great Britain).
"Gate valve" was invented by Edwin Smith (Gloucestershire, Great Britain) and Nicholas Johnson (Gloucestershire, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A slab gate valve assembly having a housing (12) with an inlet (22), an outlet (24), and a gated fluid passage between the inlet (22) and the outlet (24), at least one valve seat (42, 44) disposed in the housing (12), a gate-carrying shaft (30), and a slab gate plate arrangement (32, 34) in slidable engagement with the at least one valve seat (42, 44) and to be operated via the gate-carrying shaft (30) be...