ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,481, issued on Jan. 13, was assigned to Konecranes Global Corp. (Hyvinkaa, Finland).
"Method for monitoring a chain hoist" was invented by Oliver Moll (Solingen, Germany) and Torsten Sattler (Sprockhovel, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for monitoring a chain hoist having an electric drive motor which is connected on the output side, via a friction clutch, to a transmission, wherein, via a sensor, a speed of the transmission is sensed, and the sensed speed of the transmission is compared with an operating speed of the drive motor by means of a control device. In order to achieve safe and efficient operation of the cha...