ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,008, issued on March 25, was assigned to Inventio AG (Hergiswil, Switzerland).
"Main drive shaft or deflection shaft of an escalator or moving walkway" was invented by Michael Berger (Konigstetten, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "An adjusting ring for a moving walkway or an escalator can include a hollow cylindrical annular body and at least one adjusting screw. An outside diameter of the annular body is greater than an inner outside ring diameter of an outer ring of a roller bearing arranged adjacently in the assembled state. Furthermore, the adjusting ring can include at least one annular groove arranged concentrically to t...