ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,699, issued on Nov. 25, was assigned to INVENTIO AG (Hergiswil, Switzerland).

"Roller guide shoe for guiding an elevator car of an elevator" was invented by Romeo Lo Jacono (Gravesano, Switzerland), Volker Zapf (Kriens-Obernau, Switzerland) and Alessandro D'Apice (Ebikon, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An elevator has an elevator car that is guided on two mutually opposite guide rails in an elevator shaft. The guide rails each contain a U-shaped guide channel with a frontal guide surface and two lateral guide surfaces. Roller guide shoes are provided for guiding the elevator car. Each of the roller guide shoes has two rol...