ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,830, issued on June 10, was assigned to COOLBROOK OY (Helsinki).

"Rotary feedstock processing apparatus with an axially adjustable rotor" was invented by Alexander Karpov (Helsinki) and Denis Semenov (Helsinki).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary bladed apparatus (100) for processing feedstocks in a process fluid is provided, said apparatus comprises means for adjusting position of a working blade cascade of the rotor (3) relative to stator components (2, 4) in a longitudinal direction of a rotor shaft (1). Adjustment is performed through axial displacement of the rotor (3) or, alternatively, through axial displacement of the reac...