ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,101, issued on June 24, was assigned to Inventio AG (Hergiswil, Switzerland).
"Handrail tension monitoring device for a passenger transport system" was invented by Martin Ortbauer (Vienna).
According to the abstract* released by the U.S. Patent & Trademark Office: "A handrail tension monitoring device for a passenger transport system designed as a moving walkway or escalator can include a distance sensor and a signal processing unit. Measurement signals detected by the distance sensor can be processed and evaluated in the signal processing unit. A vibration frequency of a scanned handrail of the passenger transport system can be determined from the signal curve of the measurement...