ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,191, issued on Dec. 23, was assigned to Lennox Industries Inc. (Richardson, Texas).
"System and method for detecting a loose blower wheel of a heating, ventilation, and air conditioning system" was invented by Palanivel Subramaniam (Richardson, Texas) and Sean Nicholas Lopes (Dallas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes entering a blower monitoring mode for a blower of a heating, ventilation, and air conditioning (HVAC) system. A torque applied to a blower wheel of the blower is determined based on an electrical current and an electrical voltage provided to a motor of the blower. In response to determining that the torque ...