ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,675, issued on Feb. 17, was assigned to Siemens Healthcare Diagnostics Inc. (Tarrytown, N.Y.).
"Detection of abnormal heat exchanger operating condition" was invented by Narayanan Ramakrishnan (New City, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for detecting an abnormal operating condition of a heat exchanger is provided. The method includes determining the actual current through a heat exchanger, using the actual current to indicate an abnormal operating condition, and declaring a fault state. A step of comparing the baseline current to the actual current includes normalizing the actual current, calculating a difference between ...