ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,542,248, issued on Feb. 3, was assigned to ACD Antriebstechnik GmbH (Achstetten, Germany).
"Optical monitoring system for an optical display element" was invented by Aaron Fesseler (Achstetten, Germany) and Einar Fesseler (Achstetten, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A monitoring system for an optical display element of an emergency stop switch, wherein the monitoring system comprises an operating element with optical display element, an optical sensor and safety electronics. The safety electronics are connected to the optical display element and the optical sensor. The safety electronics comprise a safe output and a safe input and ...