ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,709,842, issued on Aug. 18, was assigned to Aalto University Foundation sr (Aalto, Finland).

"Pneumatic zone-controlled deflection compensation for roll" was invented by Mikael Miettinen (Aalto, Finland), Raine Viitala (Aalto, Finland) and Petri Kuosmanen (Aalto, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A deflection compensated roll, comprising a shaft, a shell configured to rotate around the shaft, one or more loading units between the shaft and the shell configured to adjust a nip load profile. The loading unit comprising a pressure chamber, a seal configured to seal the pressure chamber with pressurized gas, and a flexible mounting conf...