ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,539, issued on Nov. 11, was assigned to ANDRITZ OY (Helsinki).
"Sealing arrangement" was invented by Tommi Hammarberg (Helsinki) and Sonja Hirvasniemi (Kotka, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sealing arrangement (100) for a shaft, including at least a first seal element (10a) arranged around the shaft (30); at least a second seal element (10b) arranged around the shaft (30); wherein the first (10a) and second (10b) seal element include adjustable seal elements, wherein the first (10a) and second (10b) seal element include, respectively, an outer shell (14a,14b) of elastic material and a hollow core (12a,12b), wherein the holl...