ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,768, issued on Aug. 12, was assigned to Tyco Fire & Security GmbH (Neuhausen am Rheinfall, Switzerland).
"Air duct airflow sensor" was invented by Brennan Fentzlaff (Oconomowoc, Wis.), Mark G. Freund (Wauwatosa, Wis.) and Jon Douglas (Mequon, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An airflow sensor system for an air duct including a damper positioned therein is provided. The controller is configured to determine, via a first pressure sensor, a first airflow measurement based on a first one or more pressure measurements. The controller is further configured to determine, via a second pressure sensor and a damper position sensor, a second...