ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,553, issued on Feb. 10, was assigned to KONE Corp. (Helsinki).
"Method for testing a brake of a hoisting machine and system" was invented by Juha-Matti Aitamurto (Helsinki), Alessio Calcagno (Helsinki) and Lauri Stolt (Helsinki).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for testing an elevator hoisting machine brake with a preselected test load TL includes confirming empty elevator car positioned at a test location stest; obtaining information of elevator balancing B; obtaining information of friction Fr of the elevator at the test location stest; determining required assisting test torque TM of a hoisting machine motor based on said te...