ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,426, issued on Jan. 20, was assigned to FISHER CONTROLS INTERNATIONAL LLC (Marshalltown, Iowa).
"Coupling assemblies for rotary valves and related valve trims" was invented by Jesse Serrano (Marshalltown, Iowa) and Robert M. Meloy (Marshalltown, Iowa).
According to the abstract* released by the U.S. Patent & Trademark Office: "Rotary valves and related valve trims. A valve trim for a rotary valve assembly includes a valve shaft, a flow control element coupled to the valve shaft, and a coupling assembly for coupling the valve shaft to the flow control element. The coupling assembly includes an expansion pin having a central bore and a taper pin sized for insertion in a central bor...